WO2024020832A1 - Vibration damping device and control method - Google Patents
Vibration damping device and control method Download PDFInfo
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- WO2024020832A1 WO2024020832A1 PCT/CN2022/108156 CN2022108156W WO2024020832A1 WO 2024020832 A1 WO2024020832 A1 WO 2024020832A1 CN 2022108156 W CN2022108156 W CN 2022108156W WO 2024020832 A1 WO2024020832 A1 WO 2024020832A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
Definitions
- the present application relates to the field of vehicle technology, and in particular, to a vibration damping device and a control method.
- Noise, vibration, and harshness (NVH) performance is a key indicator for evaluating car comfort.
- the quality of NVH performance directly affects the user's riding experience.
- a vibration damping system is usually installed between the vehicle powertrain and the vehicle frame or body.
- the vibration damping system can limit the maximum displacement of the vehicle powertrain to avoid contact between the vehicle powertrain and adjacent components. collision.
- the vibration damping system has good vibration isolation effect and can reduce the two-way vibration transmission between the vehicle powertrain and the vehicle frame or body.
- the vibration excitation of automobile powertrains continues to intensify, placing higher requirements on the performance of the vibration damping system.
- vibration damping systems include rubber suspension, hydraulic suspension, semi-active control suspension and active suspension.
- Passive suspension will have dynamic hardening problems at high frequencies, and its dynamic characteristics cannot be adjusted in real time, making it difficult to meet the vibration isolation requirements of the automotive powertrain.
- Active suspension has excellent vibration isolation performance, but it is expensive, costs too high and consumes a lot of energy. It will take a long time to become universal. Therefore, major car companies began to develop semi-active suspensions with vibration isolation properties similar to active suspensions. For example, magnetorheological fluids were applied to the suspensions and magnetorheological suspensions were designed. Magnetorheological suspensions are Its damping force is continuously adjustable and its vibration isolation performance is greatly improved compared to passive suspension.
- the current magnetorheological suspension has a poor adjustable damping force range and cannot provide appropriate damping force under low-frequency, high-amplitude and high-frequency, low-amplitude operating conditions, which limits the vibration isolation effect of the magnetorheological suspension.
- the viscosity of the magnetorheological fluid in the magnetorheological suspension is relatively large, which leads to the dynamic hardening phenomenon of the magnetorheological suspension when it vibrates at high frequencies (that is, when the magnetorheological suspension is excited by high-frequency vibrations, the magnetic fluid
- the liquid column in the damping channel of the variable suspension produces a resonance effect, which causes the pressure in the cavity of the magnetorheological suspension to rise sharply, causing the liquid in the cavity of the magnetorheological suspension to be in a stagnant state) protruding.
- the cavity of the magnetorheological suspension is filled with expensive magnetorheological liquid, and the manufacturing cost of the magnetorheological suspension is relatively high.
- This application provides a vibration reduction device and a vibration reduction control method to increase the adjustable range of the damping force of the vibration reduction device, improve the vibration reduction effect of the vibration reduction device, and reduce the impact of high-frequency vibration energy on the vibration reduction device. dynamic hardening phenomenon.
- the application provides a vibration damping device, which includes a housing, an inertia channel structure and a connecting rod; the housing has an accommodation cavity; the inertia channel structure is disposed in the accommodation cavity and divides the accommodation cavity into third An inertial channel structure forms an inertial channel connecting the first cavity and the second cavity; wherein, the first cavity and the second cavity are filled with a first liquid, and the first liquid is in the inertial channel. internal flow; one end of the connecting rod is located outside the shell, and the other end is located in the first cavity; wherein, one end of the connecting rod is located in the first cavity, acting on the inertial channel structure to reduce the inlet area of the inertial channel.
- the inlet of the inertial channel is the first flow section through which the first liquid in the first cavity flows into the inertial channel
- the outlet of the inertial channel is the second flow section through which the first liquid in the second cavity flows into the inertial channel.
- the vibration damping device includes an inertial channel structure and a connecting rod.
- One end of the connecting rod located in the first cavity acts on the inertial channel structure, which can reduce the inlet area of the inertial channel.
- the area of the inlet of the inertial channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, effectively improving the damping effect of the damping device, and Reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy.
- the inlet area of the inertia channel becomes smaller, causing the first liquid in the first cavity and the second cavity to flow faster, which in turn causes the vibration damping device to appear larger to the outside.
- Stiffness and large damping characteristics when the vibration damping device is excited by high-frequency, small-amplitude vibrations, the inlet area of the inertial channel becomes larger, causing the first liquid in the first cavity and the second cavity to flow slowly, thereby making the vibration damping
- the device presents externally small stiffness and small damping characteristics.
- the first liquid may be a viscous fluid.
- the first cavity and the second cavity are filled with viscous fluid, which can effectively reduce the manufacturing cost of the vibration damping device compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological liquid.
- the vibration damping device further includes a first elastic member, and the first elastic member is fixed to one end of the connecting rod located in the first cavity; wherein, one end of the connecting rod located in the first cavity acts on the first elastic member, and the first elastic member The elastic member contacts the upper surface of the inertial channel structure toward the first cavity, so that the inlet area of the inertial channel becomes smaller.
- the connecting rod in the vibration damping device is excited by vibration, one end of the connecting rod located in the first cavity acts on the first elastic member, so that the first elastic member contacts the upper surface of the inertia channel structure toward the first cavity.
- the first elastic member transmits the force it receives to the inertial channel structure, so that the inlet area of the inertial channel becomes smaller.
- Case 2 The upper surface of the above-mentioned casing is provided with a rubber main spring; wherein, the connecting rod is located at one end outside the casing and acts on the rubber main spring.
- the rubber main spring deforms so that the first liquid in the first cavity impacts the inertia channel.
- the structure faces the upper surface of the first cavity, thereby making the inlet area of the inertia channel smaller.
- the connecting rod in the damping device when the connecting rod in the damping device is excited by vibration, the connecting rod is located at one end outside the housing and acts on the rubber main spring, causing the rubber main spring to deform and squeeze the first liquid in the first cavity so that the second The first liquid in a cavity impacts the inertial channel structure toward the upper surface of the first cavity, thereby reducing the inlet area of the inertial channel.
- the inertial channel structure includes a boosting plate, an upper channel plate and a lower channel plate; the upper channel plate and the lower channel plate are fixedly connected, and a first through hole connecting the first cavity and the inertial channel is provided on the side of the boosting plate.
- a first groove is provided in the lower plate of the channel; the upper surface of the boosting plate faces the first cavity, and the boosting plate moves in the direction toward the first groove under the impact of the first liquid in the first cavity to block the first groove.
- the portion of the first through hole that is not blocked by the first groove cooperates with the upper plate of the channel to form the inlet of the inertia channel.
- a boosting plate, an upper channel plate, and a lower channel plate are provided in the inertial channel structure, so that the boosting plate, the upper channel plate, and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area.
- a second elastic member and a second sealing ring are provided in the first groove, one end of the second elastic member is connected to the lower plate of the channel, and the second elastic member The other end of the elastic member is in contact with the boosting plate through the second sealing ring; wherein the boosting plate moves in the direction toward the first groove, acting on the second elastic part, and the The second elastic component deforms.
- the pressurizing plate acts on the second elastic member to deform the second elastic member so that the inlet area of the inertial channel changes adaptively.
- the second elastic member can absorb part of the vibration excitation received by the vibration damping device, further increasing the adjustable range of the damping force of the vibration damping device, thereby further improving the vibration damping effect of the vibration damping device.
- the second elastic member can be a spring, for example.
- the Reynolds number of the inertia channel is small, and the damping device has high damping and stiffness, which is beneficial to attenuating vibration; when the damping device withstands small vibration excitation, the force on the booster plate is smaller, so the booster plate moves toward The amplitude of the downward movement is small, and the supercharger plate will not squeeze the spring. At this time, the entrance area of the inertial channel is larger, the Reynolds number of the inertial channel increases, and the loss along the way is reduced, which is beneficial to suppressing idle vibration.
- the inertial channel structure includes an upper channel plate and a lower channel plate; a fourth through hole connecting the first cavity and the inertial channel is provided on the side of the channel lower plate; the upper surface of the channel upper plate faces the first cavity, and the channel upper plate faces the first cavity.
- the plate moves in the direction toward the lower plate of the channel and blocks the opening of the fourth through hole, so that the part of the fourth through hole that is not blocked by the upper plate of the channel is connected with the lower plate of the channel.
- the plates cooperate to form the entrance to the inertia channel.
- the upper channel plate and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area. There is no need to install a booster plate, effectively reducing the structural redundancy of the vibration damping device.
- a second through hole is provided in the lower plate of the channel, and the part of the second through hole that connects the inertial channel and the second cavity forms the outlet of the inertial channel.
- the above-mentioned damping device further includes an electromagnetic coil;
- the first elastic member can be a magnetorheological elastomer, and the damping and stiffness of the first elastic member change with the intensity of the magnetic field formed by the electromagnetic coil, so that The first elastic member can absorb part of the vibration excitation energy received by the damping device, further improving the damping effect of the damping device, and further reducing the dynamic hardening phenomenon of the damping device.
- the above-mentioned inertial channel structure is provided with a magnetorheological decoupling film structure.
- the damping and stiffness of the magnetorheological decoupling film structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling film structure can absorb the vibration of the vibration damping device.
- Part of the vibration excitation energy can further improve the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy.
- the magnetorheological decoupling mode structure may include a magnetorheological decoupling film and a magnetorheological liquid filled in the magnetorheological decoupling film.
- magnetorheological fluid within the magnetorheological decoupling membrane structure can effectively reduce the cost of using magnetorheological fluid compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological fluid. This saves the manufacturing cost of the vibration damping device.
- the upper surface of the boosting plate may also be provided with a third through hole, and the first liquid in the first cavity impacts the magnetorheological decoupling membrane structure through the third through hole.
- the rubber main spring deforms and squeezes the first liquid in the first cavity, so that the first cavity
- the first liquid in the body can impact the magnetorheological decoupling membrane structure through the third through hole, so as to transfer part of the vibration excitation received by the vibration damping device to the magnetorheological decoupling membrane structure.
- the vibration damping device may also include a sensor and a current control module; the current control module is connected to the sensor and the electromagnetic coil respectively; the sensor is disposed at one end of the connecting rod located in the first cavity, and the sensor is used to detect the connecting rod vibration signal; the current control module is used to adjust the current of the electromagnetic coil according to the vibration signal detected by the sensor.
- the vibration reduction device since the vibration reduction device includes a sensor, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module in the vibration reduction device can control the current of the electromagnetic coil based on the vibration signal.
- the size is adjusted to adjust the strength of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling film) in the damping device can change with the strength of the magnetic field.
- the stiffness and damping of the damping device can change with the strength of the magnetic field.
- the end of the connecting rod located at the first cavity may also be provided with a spoiler.
- the spoiler can accelerate the flow of the first liquid in the first cavity.
- the application also provides a vibration damping device, which includes a shell, an inertial channel structure, a connecting rod and an electromagnetic coil; the shell has a receiving cavity, and the inertial channel structure is disposed in the receiving cavity and will accommodate the shock absorbing device.
- the cavity is divided into a first cavity and a second cavity, and the inertial channel structure forms an inertial channel connecting the first cavity and the second cavity; wherein, the first cavity and the second cavity are filled with the first liquid, and the first cavity is filled with the first liquid.
- the inlet of the inertial channel is the first flow section through which the first liquid in the first cavity flows into the inertial channel
- the outlet of the inertial channel is the second flow section through which the first liquid in the second cavity flows into the inertial channel.
- the vibration damping device includes a magnetorheological decoupling membrane structure.
- the damping and stiffness of the magnetorheological decoupling membrane structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling membrane structure can absorb Part of the vibration excitation energy received by the vibration reduction device effectively increases the adjustable range of the damping force of the vibration reduction device, effectively improves the vibration reduction effect of the vibration reduction device, and reduces the dynamic hardening phenomenon of the vibration reduction device when it is impacted by high-frequency vibration energy.
- the first liquid may be a viscous fluid.
- the first cavity and the second cavity are filled with viscous fluid, and compared to the technical solution in which the magnetorheological suspension is completely filled with magnetorheological liquid in its cavity, the magnetorheological force can be effectively reduced.
- the cost of using the liquid can effectively reduce the manufacturing cost of the vibration damping device.
- the magnetorheological decoupling film structure includes a magnetorheological decoupling film and a magnetorheological liquid filled in the magnetorheological decoupling film.
- the inertial channel structure is provided with one or more holes, and the magnetorheological decoupling membrane structure is disposed in the one or more holes.
- Example 1 Three holes are provided in the inertial channel structure, and the magnetorheological decoupling membrane structure is provided in these three holes.
- Example 2 A hole is provided in the inertial channel structure, and the magnetorheological decoupling membrane structure is placed in this hole.
- the connecting rod is located at one end of the first cavity and acts on the inertial channel structure to reduce the inlet area of the inertial channel.
- the vibration damping device includes an inertial channel structure and a connecting rod. One end of the connecting rod located in the first cavity acts on the inertial channel structure, which can reduce the inlet area of the inertial channel. In this way, when the vibration damping device is excited by different types of vibrations, the area of the inlet of the inertial channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, and further effectively improving the damping effect of the damping device. And reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy.
- the inlet area of the inertial channel becomes smaller, causing the first liquid in the first cavity and the second cavity to flow faster, which in turn causes the vibration damping device to appear larger to the outside.
- Stiffness and large damping characteristics when the vibration damping device is excited by high-frequency, small-amplitude vibrations, the inlet area of the inertial channel becomes larger, causing the first liquid in the first cavity and the second cavity to flow slowly, thereby making the vibration damping
- the device presents externally small stiffness and small damping characteristics.
- the vibration damping device further includes a first elastic member, and the first elastic member is fixed to one end of the connecting rod located in the first cavity; wherein, one end of the connecting rod located in the first cavity acts on the first elastic member, and the first elastic member The elastic member contacts the upper surface of the inertial channel structure toward the first cavity, so that the inlet area of the inertial channel becomes smaller.
- Case 2 The upper surface of the above-mentioned casing is provided with a rubber main spring; wherein, the connecting rod is located at one end outside the casing and acts on the rubber main spring.
- the rubber main spring deforms so that the first liquid in the first cavity impacts the inertia channel.
- the structure faces the upper surface of the first cavity, thereby making the inlet area of the inertia channel smaller.
- the inertial channel structure includes a boosting plate, an upper channel plate and a lower channel plate; the upper channel plate and the lower channel plate are fixedly connected, and a first through hole connecting the first cavity and the inertial channel is provided on the side of the boosting plate.
- a first groove is provided in the lower plate of the channel; the upper surface of the boosting plate faces the first cavity, and the boosting plate moves in the direction toward the first groove under the impact of the first liquid in the first cavity to block the first groove.
- the portion of the first through hole that is not blocked by the first groove cooperates with the upper plate of the channel to form the inlet of the inertia channel.
- a boosting plate, an upper channel plate, and a lower channel plate are provided in the inertial channel structure, so that the boosting plate, the upper channel plate, and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area.
- a second elastic member and a second sealing ring are provided in the first groove, one end of the second elastic member is connected to the lower plate of the channel, and the second elastic member The other end of the elastic member is in contact with the boosting plate through the second sealing ring; wherein the boosting plate moves in the direction toward the first groove, acting on the second elastic part, and the The second elastic component deforms.
- the pressurizing plate acts on the second elastic member to deform the second elastic member so that the inlet area of the inertial channel changes adaptively.
- the inertial channel structure includes an upper channel plate and a lower channel plate; a fourth through hole connecting the first cavity and the inertial channel is provided on the side of the channel lower plate; the upper surface of the channel upper plate faces the first cavity, and the channel upper plate faces the first cavity.
- the plate moves in the direction toward the lower plate of the channel and blocks the opening of the fourth through hole, so that the part of the fourth through hole that is not blocked by the upper plate of the channel is connected with the lower plate of the channel.
- the plates cooperate to form the entrance to the inertia channel.
- the upper channel plate and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area. There is no need to install a booster plate, effectively reducing the structural redundancy of the vibration damping device.
- a second through hole is provided in the lower plate of the channel, and the part of the second through hole that connects the inertial channel and the second cavity forms the outlet of the inertial channel.
- the first elastic member can be a magnetorheological elastomer, and the damping and stiffness of the first elastic member change with the strength of the magnetic field formed by the electromagnetic coil, so that the first elastic member can absorb the vibration damping device Part of the vibration excitation energy received further improves the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device.
- the upper surface of the boosting plate may also be provided with a third through hole, and the first liquid in the first cavity impacts the magnetorheological decoupling membrane structure through the third through hole.
- the rubber main spring deforms and squeezes the first liquid in the first cavity, so that the first cavity
- the first liquid in the body can impact the magnetorheological decoupling membrane structure through the third through hole, so as to transfer part of the vibration excitation received by the vibration damping device to the magnetorheological decoupling membrane structure.
- the vibration damping device may also include a sensor and a current control module; the current control module is connected to the sensor and the electromagnetic coil respectively; the sensor is disposed at one end of the connecting rod located in the first cavity, and the sensor is used to detect the connecting rod vibration signal; the current control module is used to adjust the current of the electromagnetic coil according to the vibration signal detected by the sensor.
- the vibration reduction device since the vibration reduction device includes a sensor, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module in the vibration reduction device can control the current of the electromagnetic coil based on the vibration signal.
- the size is adjusted to adjust the strength of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling film) in the damping device can change with the strength of the magnetic field.
- the stiffness and damping of the damping device can change with the strength of the magnetic field.
- the end of the connecting rod located at the first cavity may also be provided with a spoiler.
- the spoiler can accelerate the flow of the first liquid in the first cavity.
- the application also provides a vibration damping device, which includes a shell, an inertial channel structure, a connecting rod, an electromagnetic coil, and a magnetorheological elastomer;
- the shell has a receiving cavity, and the inertial channel structure is provided In the accommodation cavity and the accommodation cavity is divided into a first cavity and a second cavity, the inertial channel structure forms an inertial channel connecting the first cavity and the second cavity; wherein, the first cavity and the second cavity are filled with There is a first liquid, and the first liquid flows in the inertial channel; one end of the connecting rod is located outside the shell, and the other end is located in the first cavity; wherein, one end of the connecting rod is located in the first cavity, acting on the inertial channel structure to cause the inertial
- the entrance area of the channel becomes smaller;
- the magnetorheological elastomer is fixed to the connecting rod at one end of the first cavity;
- the inertial channel structure is provided with a magnetorheological decoupling film structure, a
- the vibration damping device includes an inertial channel structure and a connecting rod.
- One end of the connecting rod located in the first cavity acts on the inertial channel structure, which can reduce the inlet area of the inertial channel.
- the area of the inlet of the inertial channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, effectively improving the damping effect of the damping device, and Reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy.
- the inertial channel structure is provided with a magnetorheological decoupling film structure.
- the damping and stiffness of the magnetorheological decoupling film structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling film structure can absorb the vibration of the vibration damping device.
- Part of the vibration excitation energy can further improve the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device.
- the connecting rod is located at one end of the first cavity and acts on the magnetorheological elastomer, so that the magnetorheological elastomer can transmit part of the vibration excitation received by the damping device to the inertial channel structure.
- the damping and stiffness of the magnetorheological elastomer change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological elastomer can absorb part of the vibration excitation of the vibration damping device, further increasing the adjustable range of the damping force of the damping device, This further improves the damping effect of the damping device.
- this application also provides a control method applied to a vibration damping device.
- the vibration damping device includes a shell, a connecting rod, an inertial channel structure, an electromagnetic coil, a sensor and a current control module; wherein the current control module and the electromagnetic
- the coil and the sensor are connected respectively, one end of the connecting rod is located outside the housing, and the other end of the connecting rod is located inside the housing and is connected to the sensor;
- the inertial channel structure is provided with a magnetorheological decoupling membrane structure, and the magnetorheological decoupling membrane structure has a damping and the stiffness changes with the intensity of the magnetic field formed by the electromagnetic coil;
- the method includes: monitoring the vibration signal of the connecting rod through a sensor; processing the vibration signal through the current control module to obtain a control signal, which is used to adjust the current size of the electromagnetic coil; where , the strength of the magnetic field formed by the electromagnetic coil changes with the current of the electromagnetic coil.
- the vibration reduction device since the vibration reduction device includes a sensor, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module in the vibration reduction device can control the current of the electromagnetic coil based on the vibration signal.
- the size is adjusted to adjust the intensity of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological decoupling membrane structure in the damping device can change with the intensity of the magnetic field, thereby achieving dynamic adjustment of the stiffness and damping of the damping device.
- the vibration reduction device also includes a magnetorheological elastomer.
- the current control module in the vibration damping device can adjust the current of the electromagnetic coil based on the vibration signal, thereby adjusting the intensity of the magnetic field formed by the electromagnetic coil.
- the stiffness and damping of the magnetorheological elastomer can change with the intensity of the magnetic field. , thereby achieving dynamic adjustment of the stiffness and damping of the vibration damping device.
- the present application also provides a suspension system, including the vibration damping device as described in any one of the first to third aspects.
- the present application also provides a suspension, including the vibration damping device according to any one of the first to third aspects.
- the present application also provides a vehicle, including the suspension system as described in the fifth aspect and the suspension as described in the sixth aspect.
- Figure 1A is one of the structural schematic diagrams of the first vibration damping device provided by this application.
- Figure 1B is the second structural schematic diagram of the first vibration damping device provided by this application.
- Figure 1C is the third structural schematic diagram of the first vibration damping device provided by this application.
- Figure 1D is the fourth structural schematic diagram of the first vibration damping device provided by this application.
- Figure 1E is the fifth structural schematic diagram of the first vibration damping device provided by this application.
- Figure 2A is one of the structural schematic diagrams of the second vibration damping device provided by this application.
- Figure 2B is the second structural schematic diagram of the second vibration damping device provided by this application.
- FIG. 2C is the third structural schematic diagram of the second vibration damping device provided by this application.
- FIG. 3 is a schematic structural diagram of the third vibration damping device provided by this application.
- Figure 4 is a schematic flow chart of a control method provided by this application.
- 250-Magnetorheological decoupling membrane structure 251-Magnetorheological decoupling membrane; 252-Magnetorheological liquid;
- 300-connecting rod 301-the first end of the connecting rod; 302-the second end of the connecting rod; 3021-coil groove; 3022-annular groove; 3023-spoiler;
- Magnetorheological liquid is a kind of ferromagnetic fine particles. It is a stable suspension liquid composed of solvent water, mineral oil, silicone oil, etc. and surfactants that can evenly disperse magnetic particles. It has high saturation under the action of a magnetic field. The magnetization strength and its yield stress change with the change of the external magnetic field. Therefore, under the influence of an external magnetic field, magnetorheological liquids exhibit the characteristics of non-Newtonian fluids, transforming from free-flowing liquids to semi-solids or even solids within milliseconds, showing strong controllable rheological characteristics.
- the magnetorheological liquid is filled into the magnetorheological decoupling film in the vibration damping device to form a magnetorheological decoupling film structure.
- the damping and stiffness of the magnetorheological decoupling membrane structure can change with the change of the external magnetic field to absorb the impact energy of the shock absorber, thereby effectively reducing the dynamic hardening of the shock absorber. Phenomenon.
- Magneto-rheological elastomers incorporate micron-scale ferromagnetic particles into polymers and solidify them in a magnetic field environment, so that the particles in the matrix have a chain or columnar structure.
- the elastic modulus of magnetorheological elastomers can change with changes in the intensity of the external magnetic field.
- magnetorheological elastomers Compared with ordinary magnetorheological liquids, magnetorheological elastomers not only have high-tech features such as controllability, reversibility, and rapid response, but also It also has unique advantages such as good stability.
- the magnetorheological elastomer is disposed in the damping device.
- the damping and stiffness of the magnetorheological decoupling membrane structure can change with the external magnetic field. And changes to absorb the impact energy received by the vibration damping device, thereby effectively reducing the dynamic hardening phenomenon of the vibration damping device.
- Inertial channel also called damping channel.
- the housing in the vibration damping device has an accommodation cavity, and an inertial channel structure provided in the accommodation cavity divides it into a first cavity and a second cavity.
- the inertial channel formed by the inertial channel structure connects the first cavity and the second cavity, and when the shock absorbing device is impacted, the liquid filled in the first cavity and the second cavity can flow back and forth through the inertial channel, absorbing The impact energy received by the vibration damping device.
- This application provides three types of vibration reduction devices, which effectively increase the adjustable range of the damping force of the vibration reduction device, effectively improve the vibration reduction effect of the vibration reduction device, and reduce the dynamic hardening phenomenon of the vibration reduction device when it is impacted by high-frequency vibration energy. .
- the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments.
- Embodiment 1 the first vibration damping device.
- Figure 1A is one of the structural schematic diagrams of the first vibration damping device provided by this application.
- the vibration damping device includes a housing 100, an inertia channel structure 200 and a connecting rod 300; wherein the housing 100 has a receiving cavity.
- the inertia channel structure 200 is disposed in the accommodation cavity and divides the accommodation cavity into a first cavity 101 and a second cavity 102.
- the inertia channel structure forms an inertia channel 240 connecting the first cavity 101 and the second cavity 102.
- the first end 301 of the connecting rod 300 is located outside the housing 100 , and the second end 302 is located within the first cavity 101 .
- the second end 301 of the connecting rod 300 acts on the inertial channel structure 200, which can reduce the area of the inlet 241 of the inertial channel.
- the area of the inlet of the inertia channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, effectively improving the damping effect of the damping device, and Reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy.
- the vibration damping device when the vibration damping device is subjected to a low-frequency, large-amplitude impact, the area of the inlet 241 of the inertia channel becomes smaller, causing the first liquid in the first cavity 101 and the second cavity 102 to flow faster, thereby reducing the vibration.
- the device exhibits large stiffness and large damping characteristics to the outside; when the vibration damping device is excited by high-frequency, small-amplitude vibrations, the area of the inlet 242 of the inertial channel becomes larger, causing the first cavity 101 and the second cavity 102 to The liquid flows slowly, which causes the vibration damping device to exhibit small stiffness and small damping characteristics to the outside world.
- the first cavity 101 and the second cavity 102 are filled with the first liquid, and the first liquid can flow back and forth in the inertial channel 240.
- the inlet 241 of the inertial channel is where the first liquid in the first cavity 101 flows into the inertial channel.
- the first flow section of the channel and the outlet 242 of the inertial channel are the second flow section through which the first liquid in the second cavity 102 flows into the inertial channel. Therefore, in some possible embodiments, the first cavity 101 may be called a first liquid chamber, and the second cavity 102 may be called a second liquid chamber.
- the first liquid may be a viscous fluid or a magnetorheological liquid. It should be noted that filling the first cavity 101 and the second cavity 102 with viscous fluid can effectively reduce the cost of the vibration damping device compared to the technical solution of filling the cavity with magnetorheological liquid in the magnetorheological suspension. .
- the housing 100 includes a rubber main spring 103, an upper housing 104, a lower housing 105, and an elastic bottom bowl 106; the upper housing 104 has an opening, the rubber main spring 103 is disposed at the opening, and the upper housing 104 has an opening.
- the first cavity 101 is formed between the body 104, the rubber main spring 103 and the inertial channel structure 200; the second cavity 102 is formed between the lower housing 105, the elastic bottom bowl 106 and the inertial channel structure 200.
- the above-mentioned vibration damping device also includes a reinforcing block 800, which is fixedly connected to the connecting rod 300.
- the vibration damping device also includes a first elastic member 400.
- the first elastic member 400 is fixed to the second end 302 of the connecting rod 300. Therefore, when the vibration damping device is excited by vibration, the second end 302 of the connecting rod 300 can act on the first elastic member 400, and the first elastic member 400 contacts the upper surface of the inertial channel structure 200 toward the first cavity, so that the first elastic member 400 contacts the upper surface of the inertial channel structure 200 toward the first cavity, so that the An elastic member 400 can transmit the vibration excitation received by the damping device to the inertial channel structure 200, so that the area of the inlet 241 of the inertial channel becomes smaller.
- the first elastic member 400 may be a magnetorheological elastomer or a rubber ring.
- an electromagnetic coil 500 can be provided in the vibration damping device, so that the damping and stiffness of the first elastic member 400 change with the intensity of the magnetic field formed by the electromagnetic coil.
- the first elastic member 400 can absorb part of the vibration excitation received by the damping device, further increasing the adjustable range of the damping force of the damping device, and further improving the damping effect of the damping device. , and effectively reduce the dynamic hardening phenomenon of the vibration damping device.
- the second end 302 of the connecting rod 300 is also provided with a coil slot 3021 and an annular groove 3022.
- the coil slot 3021 is provided with an electromagnetic coil 500, and the outside of the electromagnetic coil 500 is provided with a coil slot 3021 and an annular groove 3022.
- the second end 302 of the connecting rod 300 is provided with a spoiler 3023, which can accelerate the flow of the first liquid in the first cavity 101.
- the rubber main spring 103 is provided on the upper surface of the housing 100, the first end 301 of the connecting rod 300 can act on the rubber main spring 103, and the rubber main spring 103 deforms and squeezes the second rubber main spring 103.
- the first liquid in the first cavity 101 causes the first liquid in the first cavity 101 to impact the inertial channel structure 200 toward the upper surface of the first cavity 101, thereby reducing the area of the inlet 241 of the inertial channel.
- the second end 302 of the connecting rod 300 can act on the first elastic member 400, and the first elastic member 400 contacts the upper surface of the inertial channel structure 200 toward the first cavity, so that the first elastic member 400 contacts the upper surface of the first cavity.
- An elastic member 400 can transmit the vibration excitation of the damping device to the inertial channel structure 200; and the first end 301 of the connecting rod 300 acts on the rubber main spring 103, and the rubber main spring 103 deforms and squeezes the first cavity
- the first liquid in the first cavity 101 causes the first liquid in the first cavity 101 to impact the inertial channel structure 200 toward the upper surface of the first cavity 101, so that the area of the inlet 241 of the inertial channel becomes smaller.
- the inertial channel structure 200 is introduced in detail below.
- the inertial channel structure 200 includes a pressurizing plate 210 , an upper channel plate 220 and a lower channel plate 230 .
- the pressurizing plate 210 , the upper channel plate 220 and the lower channel plate 230 are formed by cooperation.
- a first through hole 211 connecting the first cavity 101 and the inertia channel can be provided on the side of the boosting plate 210, and a first groove 231 is provided in the lower plate 230 of the channel; since the upper surface of the boosting plate 210 faces the first In the cavity 101, under the impact of the first liquid in the first cavity 101, the boosting plate 210 can move in the direction toward the first groove 231 and block the opening of the first groove 231, so that the first The portion of the through hole 211 that is not blocked by the first groove 231 cooperates with the channel upper plate 220 to form the inlet 241 of the inertia channel.
- the channel lower plate 230 is provided with a second through hole 232, and the portion of the second through hole 232 that connects the inertial channel and the second cavity 102 forms the outlet 242 of the inertial channel.
- the first through hole 211 and the second through hole 232 may be in the form of circular holes, elongated holes, bent holes, slits, or other structural forms, which are not specifically limited in the embodiments of the present application.
- the channel upper plate 220 and the channel lower plate 230 are fixedly connected.
- coaxial positioning pin holes can be provided in the channel upper plate 220 and the channel lower plate 230, and positioning pins are provided in the positioning pin holes to realize the channel upper plate 220 and the channel lower plate 230.
- a second elastic member 2312 and a second sealing ring 2311 can be disposed in the first groove 231 .
- One end of the second elastic member 2312 is connected to the channel lower plate 230
- the other end of the second elastic member 2312 is connected to the channel lower plate 230 .
- One end contacts the booster plate 210 through the second sealing ring 2311.
- the second sealing ring 2311 is used to seal the second elastic member 2312.
- the boosting plate 210 moves in the direction toward the channel lower plate 230, and the boosting plate 210 will act on the second elastic member 2312 to squeeze the
- the second elastic member 2312 deforms, so that part of the first through hole 211 in the boosting plate 210 is blocked by the first groove 231, thereby reducing the area of the inlet 241 of the inertia channel.
- the boosting plate 210 can act on the second elastic member 2312 to deform the second elastic member 2312 so that the inlet area of the inertial channel changes adaptively.
- the second elastic member 2312 can absorb part of the vibration excitation received by the vibration damping device, further increasing the adjustable range of the damping force of the vibration damping device, and further improving the vibration damping effect of the vibration damping device.
- the second elastic member 2312 may include any one of a bellows, a spring, or an elastic diaphragm, which is not specifically limited in the embodiment of this application.
- the second elastic member 2312 is a spring
- the damping device when excited by a large vibration, the boosting plate 210 is pressed by a large force and moves downward.
- the inlet area of the inertia channel becomes smaller, the Reynolds number of the inertia channel is smaller, and the vibration damping device has higher damping and stiffness, which is beneficial to attenuating vibration; when the damping device withstands small vibration excitation, the force on the boosting plate 210 is smaller, so The downward movement of the boosting plate 210 is small, and the boosting plate 210 will not squeeze the spring.
- the area of the inertial channel entrance (271) is larger, the Reynolds number of the inertial channel increases, and the loss along the way is reduced, which is beneficial to Suppress idling vibration.
- the inertial channel structure 200 includes an upper channel plate 220 and a lower channel plate 230 .
- the upper channel plate 220 and the lower channel plate 230 cooperate to form an inertial channel 240 .
- the side of the channel lower plate 230 is provided with a fourth through hole 233 that connects the first cavity 101 and the inertial channel; since the upper surface of the channel upper plate 220 faces the first cavity 101, the shock absorbing device is connected when it is impacted.
- the first end 301 of the rod 300 can act on the rubber main spring 103.
- the rubber main spring 103 deforms and squeezes the first liquid in the first cavity 101, so that the first liquid in the first cavity 101 impacts the upper plate of the channel.
- the channel upper plate 220 can move in the direction toward the channel lower plate 230 to block the opening of the fourth through hole 233, so that the portion of the fourth through hole 233 that is not blocked by the channel upper plate 220 is connected with the channel lower plate.
- 230 cooperates to form the entrance 241 of the inertia channel.
- the channel lower plate 230 is provided with a second through hole 232, and the portion of the second through hole 232 that connects the inertial channel and the second cavity 102 forms the outlet 242 of the inertial channel.
- the area of the inlet 241 of the inertial channel changes with the movement amplitude of the upper channel plate 220 in the direction toward the lower channel plate 230.
- the upper channel plate 220 and the lower channel plate 230 can cooperate to form an inertial channel with an adaptively changing inlet area, eliminating the need for a booster plate and effectively reducing the structural redundancy of the vibration damping device.
- a magnetorheological decoupling membrane structure 250 can also be provided in the above-mentioned inertial channel structure 200 .
- a fifth through hole 224 is provided in the channel upper plate 220
- a sixth through hole 234 is provided in the channel lower plate 230.
- the fifth through hole 224 and the sixth through hole 234 cooperate with each other to clamp the magnetorheological solution.
- Coupling film structure 250 may be one or more through holes during specific implementation.
- the fifth through hole 224 and the sixth through hole 234 are only three through holes. Example, not limitation.
- the magnetorheological decoupling mode structure 250 includes a magnetorheological decoupling film 251 and a magnetorheological liquid 252 filled in the magnetorheological decoupling film 251 .
- a magnetorheological decoupling film 251 and a magnetorheological liquid 252 filled in the magnetorheological decoupling film 251 .
- only using the magnetorheological fluid in the magnetorheological decoupling film 251 can effectively reduce the cost of using the magnetorheological fluid compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological fluid. This saves the manufacturing cost of the vibration damping device.
- the damping and stiffness of the magnetorheological decoupling membrane structure 250 change with the intensity of the magnetic field formed by the electromagnetic coil 500, so that the magnetorheological decoupling membrane structure can absorb part of the vibration excitation energy received by the vibration damping device, further improving the damping effect.
- the vibration damping effect of the vibration device can further reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. For example, in FIG. 1D , since the third through hole 212 is provided on the upper surface of the boosting plate 210 , when the vibration damping device is excited by vibration, the rubber main spring 103 deforms, squeezing the first spring in the first cavity 101 .
- the third through hole 212 may be one or more through holes during specific implementation.
- the third through holes 212 in FIG. 1D are only four through holes as an example and are not limiting.
- the vibration reduction device may also include a sensor 600 and a current control module 700 (not shown in the figure); the current control module 700 is connected to the sensor 600 and the electromagnetic coil 500 respectively; since the sensor 600 is disposed at the second end 302 of the connecting rod 300.
- the sensor 600 can detect the vibration signal of the connecting rod 300; the current control module 700 can adjust the current of the electromagnetic coil 500 according to the vibration signal detected by the sensor 600.
- the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module 700 in the vibration reduction device can adjust the current size of the electromagnetic coil 500 based on the vibration signal, and then adjust the current formed by the electromagnetic coil 500
- the strength of the magnetic field, and the stiffness and damping of the magnetorheological material (for example, the magnetorheological elastomer 400 or the magnetorheological decoupling membrane structure 250) in the damping device can change with the strength of the magnetic field, thereby achieving the stiffness of the damping device. and dynamic adjustment of damping to give full play to the rapid response and vibration reduction characteristics of magnetorheological materials.
- the sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
- Embodiment 2 the second vibration damping device.
- FIG. 2A is one of the structural schematic diagrams of the second vibration reduction device provided by this application.
- the vibration reduction device includes a housing 100, an inertial channel structure 200, a connecting rod 300 and an electromagnetic coil 500; wherein, the housing 100 has an accommodation cavity, and an inertial channel structure 200 is disposed in the accommodation cavity and divides the accommodation cavity into a first cavity 101 and a second cavity 102.
- the inertial channel structure forms a connection between the first cavity 101 and the second cavity 102.
- Inertial channel 240 The first cavity 101 and the second cavity 102 are filled with a first liquid, and the first liquid can flow in the inertial channel 240 .
- the first end 301 of the connecting rod 300 is located outside the housing 100 , and the second end 302 of the connecting rod 300 is located within the first cavity 101 .
- the inertial channel structure 200 is provided with a magnetorheological decoupling membrane structure 250 .
- the damping and stiffness of the magnetorheological decoupling membrane structure 250 change with the intensity of the magnetic field formed by the electromagnetic coil 500 .
- the damping and stiffness of the magnetorheological decoupling membrane structure 250 change with the intensity of the magnetic field formed by the electromagnetic coil 500, so that the magnetorheological decoupling membrane structure 250 can absorb the vibration excitation energy received by the vibration damping device, effectively increasing the size of the damping device.
- the adjustable damping force range effectively improves the damping effect of the damping device and reduces the dynamic hardening of the damping device.
- the inlet 241 of the inertial channel is the first flow cross section through which the first liquid in the first cavity 101 flows into the inertial channel
- the outlet 242 of the inertial channel is the through which the first liquid in the second cavity 102 flows into the inertial channel.
- the first liquid may be a viscous fluid.
- the magnetorheological decoupling mode structure 250 includes a magnetorheological decoupling film 251 and a magnetorheological liquid 252 filled in the magnetorheological decoupling film 251 . In this way, only using the magnetorheological fluid in the magnetorheological decoupling film 251 can effectively reduce the cost of using the magnetorheological fluid compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological fluid. This saves the manufacturing cost of the vibration damping device.
- the housing 100 includes a rubber main spring 103, an upper housing 104, a lower housing 105, and an elastic bottom bowl 106.
- the upper housing 104 has an opening, and the rubber main spring 103 is disposed at the opening.
- the first cavity 101 is formed between the housing 104, the rubber main spring 103 and the inertial channel structure 200; the second cavity 102 is formed between the lower housing 105, the elastic bottom bowl 106 and the inertial channel structure 200.
- the above-mentioned vibration damping device also includes a reinforcing block 800, which is fixedly connected to the connecting rod 300.
- the upper surface of the housing 100 is provided with a rubber main spring 103; wherein the first end 301 of the connecting rod 300 acts on the rubber main spring 103, and the rubber main spring 103 deforms and squeezes the first
- the first liquid in the cavity 101 causes the first liquid in the first cavity 101 to impact the magnetorheological decoupling membrane structure 250 . Since the damping and stiffness of the magnetorheological decoupling membrane structure change with the intensity of the magnetic field formed by the electromagnetic coil 500, the magnetorheological decoupling membrane structure can absorb the vibration excitation energy received by the vibration damping device, effectively increasing the damping force of the vibration damping device.
- the adjustable range effectively improves the damping effect of the damping device and reduces the dynamic hardening of the damping device when it is impacted by high-frequency vibration energy.
- the rubber main spring 103 deforms and squeezes the first liquid in the first cavity 101, so that the first liquid in the first cavity 101 flows from the inertial channel into the second cavity 102.
- the inertial channel structure is provided with one or more holes, and the magnetorheological decoupling membrane structure is disposed in the one or more holes.
- the inertial channel structure 200 includes an upper channel plate 220 and a lower channel plate 230.
- the upper channel plate 220 is provided with a fifth through hole 224
- the lower channel plate 230 is provided with a sixth through hole 234.
- the fifth through hole 224 and the sixth through hole 234 cooperate with each other to clamp the magnetorheological decoupling film structure 250 .
- the second end 302 of the connecting rod 300 is also provided with a coil slot 3021, and the vibration damping device also includes a rubber ring 401.
- the rubber ring 401 is arranged around the coil slot 3021, which can avoid the connecting rod 300 and the inertial channel structure. 200 rigid contact.
- Figure 2B is the second structural schematic diagram of the second vibration damping device provided by this application.
- the shock absorbing device further includes a first elastic member 400, and the first elastic member 400 is fixed to the second end 302 of the connecting rod 300.
- the first elastic member 400 can be a magnetorheological elastomer.
- the change in the intensity of the magnetic field formed by the electromagnetic coil allows the first elastic member 400 to absorb part of the vibration excitation received by the vibration damping device, further increasing the adjustable range of the damping force of the vibration damping device, thereby further improving the vibration damping effect of the vibration damping device.
- the second end 302 of the connecting rod 300 is also provided with a coil groove 3021 and an annular groove 3022.
- the coil groove 3021 is provided with the electromagnetic coil 500
- the first sealing ring 501 is provided outside the electromagnetic coil 500.
- the first elastic member 400 is disposed in the annular groove 3022, and the upper side and circumferential side of the first elastic member 400 are in contact with the inner wall of the annular groove 3022, and the lower side of the first elastic member 400 Contact with the inertial channel structure 200.
- the second end 302 of the connecting rod 300 is provided with a spoiler 3023, which can accelerate the flow of the first liquid in the first cavity 101.
- Figure 2C is the third structural schematic diagram of the second vibration damping device provided by this application.
- the vibration damping device may also include a sensor 600 and a current control module 700 (not shown in the figure); the current control module 700 is connected to the sensor 600 and the electromagnetic coil 500 respectively; since the sensor 600 is disposed on the connecting rod At the second end 302 of 300, the sensor 600 can detect the vibration signal of the connecting rod 300; the current control module 700 can adjust the current of the electromagnetic coil 500 according to the vibration signal detected by the sensor 600.
- the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module 700 in the vibration reduction device can adjust the current size of the electromagnetic coil 500 based on the vibration signal, and then adjust the current formed by the electromagnetic coil 500
- the strength of the magnetic field, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling membrane structure 250) in the damping device can change with the strength of the magnetic field, thereby achieving the stiffness and damping of the damping device. Dynamic adjustment of damping gives full play to the rapid response and vibration reduction characteristics of magnetorheological materials.
- the sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
- Embodiment 3 the third vibration damping device.
- FIG. 3 is a schematic structural diagram of a third vibration damping device provided by an embodiment of the present application.
- the vibration damping device includes a housing 100, an inertia channel structure 200, a connecting rod 300, a first elastic body 400 and an electromagnetic coil. 500; wherein, the housing 100 has an accommodating cavity, and the inertial channel structure 200 is disposed in the accommodating cavity and divides the accommodating cavity into a first cavity 101 and a second cavity 102, and the inertial channel structure 200 forms a connection with the first cavity 101. and the inertial channel 240 of the second cavity 102 .
- the first end 301 of the connecting rod 300 is located outside the housing 100 , and the second end 302 of the connecting rod 300 is located within the first cavity 101 .
- the second end 302 of the connecting rod 300 is in contact with the first elastic body 400; the second end 302 of the connecting rod 300 acts on the inertial channel structure to reduce the area of the inlet 241 of the inertial channel; where the inertial channel structure A magnetorheological decoupling membrane structure 250 is provided, and the first elastomer 400 is a magnetorheological liquid; the damping and stiffness of the magnetorheological decoupling membrane structure 250 and the first elastomer 400 change with the intensity of the magnetic field formed by the electromagnetic coil 500 .
- the first cavity 101 and the second cavity 102 are filled with the first liquid, and the first liquid can flow back and forth in the inertial channel 240.
- the inlet 241 of the inertial channel is where the first liquid in the first cavity 101 flows into the inertial channel.
- the first flow section of the channel and the outlet 242 of the inertial channel are the second flow section through which the first liquid in the second cavity 102 flows into the inertial channel. Therefore, in some possible embodiments, the first cavity 101 may be called a first liquid chamber, and the second cavity 102 may be called a second liquid chamber.
- the first liquid may be a viscous fluid or a magnetorheological liquid.
- the magnetorheological decoupling mode structure 250 includes a magnetorheological decoupling film 251 and a magnetorheological liquid 252 filled in the magnetorheological decoupling film 251 .
- the first cavity 101 and the second cavity 102 are filled with viscous fluid, only the magnetorheological liquid is used in the magnetorheological decoupling film 251, and the magnetorheological fluid is filled in the cavity relative to the magnetorheological suspension.
- the liquid technical solution can effectively reduce the cost of the vibration damping device.
- the sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
- the housing 100 includes a rubber main spring 103, an upper housing 104, a lower housing 105, and an elastic bottom bowl 106.
- the upper housing 104 has an opening, and the rubber main spring 103 is disposed at the opening.
- the first cavity 101 is formed between the housing 104, the rubber main spring 103 and the inertial channel structure 200; the second cavity 102 is formed between the lower housing 105, the elastic bottom bowl 106 and the inertial channel structure 200.
- the above-mentioned vibration damping device also includes a reinforcing block 800, which is fixedly connected to the connecting rod 300.
- the area size of the inlet of the inertia channel in the third vibration reduction device can be adaptively adjusted, effectively increasing the damping force of the vibration reduction device.
- the adjustable range effectively improves the damping effect of the damping device and reduces the dynamic hardening of the damping device when it is impacted by high-frequency vibration energy.
- the inertial channel structure is provided with a magnetorheological decoupling film structure. The damping and stiffness of the magnetorheological decoupling film structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling film structure can absorb the vibration of the vibration damping device.
- Part of the vibration excitation energy can further improve the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy.
- the magnetorheological elastomer can transfer part of the vibration excitation of the damping device to the inertial channel structure, and the damping and stiffness of the magnetorheological elastomer change with the intensity of the magnetic field formed by the electromagnetic coil. , so that the magnetorheological elastomer can absorb part of the vibration excitation received by the damping device, further increasing the adjustable range of the damping force of the damping device, and further improving the damping effect of the damping device.
- embodiments of the present application also provide a control method, which can be applied to any of the above-mentioned first device, second device, or third device. See Figure 4, the method includes:
- the sensor 600 monitors the vibration signal of the connecting rod 300.
- the sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
- the current control module 700 processes the vibration signal to obtain a control signal.
- the current control module 700 adjusts the current of the electromagnetic coil 500 based on the control signal.
- the control signal corresponding to the high-frequency large signal can be used to increase the current of the electromagnetic coil 500 .
- the control signal corresponding to the low-frequency small signal can be used to adjust the current of the electromagnetic coil 500 to a small value or to zero.
- the sensor can sense the vibration signal corresponding to the vibration excitation received by the vibration reduction device, and the current control module in the vibration reduction device can adjust the current size of the electromagnetic coil based on the vibration signal, and then adjust The strength of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling film) in the shock absorber device can change with the strength of the magnetic field, thereby achieving the desired performance of the shock absorber device. Dynamic adjustment of stiffness and damping gives full play to the rapid response and vibration reduction characteristics of magnetorheological materials.
- the vibration reduction device provided by the embodiment of the present application can be applied in any application scenario that requires vibration reduction processing.
- it can be used in vehicle suspension systems to reduce vehicle vibrations during driving.
- it can be used in vehicle suspensions to reduce vibrations in the automotive powertrain (e.g., engine).
- it can be used in vehicle batteries to prevent the battery from being squeezed and deformed.
- it can be used in a washing machine to reduce the vibration of the washing machine.
- embodiments of the present application also provide a suspension system, which may include the vibration damping device described in any one of Embodiment 1, Embodiment 2, or Embodiment 3.
- the embodiment of the present application also provides a suspension, which may include the vibration damping device as described in any one of Embodiment 1, Embodiment 2, or Embodiment 3.
- the embodiment of the present application also provides a battery, which may include the vibration reduction device as described in any one of Embodiment 1, Embodiment 2, or Embodiment 3.
- Embodiments of the present application also provide a vehicle, which includes but is not limited to new energy vehicles, smart vehicles, and other types of vehicles.
- the vehicle may include a body, wheels, and the suspension system and mounts of the previous embodiments.
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Abstract
A vibration damping device, comprising a housing (100), an inertial channel structure (200) and a connecting rod (300), wherein the housing (100) has an accommodation cavity; the inertial channel structure (200) is arranged in the accommodation cavity and partitions same into a first cavity (101) and a second cavity (102), and the inertial channel structure (200) forms an inertial channel (240), which communicates the first cavity (101) with the second cavity (102); the first cavity (101) and the second cavity (102) are filled with a first liquid that flows in the inertial channel (240); the connecting rod (300) has a first end (301) located outside the housing (100) and a second end (302) located in the first cavity (101); and the second end (302) of the connecting rod (300) acts on the inertial channel structure (200) to reduce the area of an inlet (241) of the inertial channel. The vibration damping device can increase a damping force adjustment range, improve a vibration damping effect, and mitigate dynamic hardening when being subjected to high-frequency vibration energy. Further provided is a vibration damping control method.
Description
本申请涉及车辆技术领域,尤其涉及一种减振装置及控制方法。The present application relates to the field of vehicle technology, and in particular, to a vibration damping device and a control method.
噪声、振动与声振粗糙度(noise、vbration、harshness,NVH)性能作为评价汽车舒适性的关键指标,NVH性能的好坏直接影响了用户的乘车体验。为了提升汽车的NVH性能,通常在汽车动力总成与汽车车架或车身之间设置减振***,减振***可以限制汽车动力总成的最大位移,以避免汽车动力总成与相邻零部件碰撞。同时,减振***具有良好的隔振作用,可以降低汽车动力总成和汽车车架或车身之间的双向振动传递。然而,随着汽车动力总成的功率增大以及动力***的轻量化使得汽车动力总成的振动激励不断加剧,对减振***的性能提出了更高的要求。Noise, vibration, and harshness (NVH) performance is a key indicator for evaluating car comfort. The quality of NVH performance directly affects the user's riding experience. In order to improve the NVH performance of the vehicle, a vibration damping system is usually installed between the vehicle powertrain and the vehicle frame or body. The vibration damping system can limit the maximum displacement of the vehicle powertrain to avoid contact between the vehicle powertrain and adjacent components. collision. At the same time, the vibration damping system has good vibration isolation effect and can reduce the two-way vibration transmission between the vehicle powertrain and the vehicle frame or body. However, as the power of automobile powertrains increases and the power system becomes lighter, the vibration excitation of automobile powertrains continues to intensify, placing higher requirements on the performance of the vibration damping system.
目前,常见的减振***包括橡胶悬置、液压悬置、半主动控制悬置以及主动悬置。被动悬置在高频时会出现动态硬化问题,且其动态特性不能进行实时调整,难以满足汽车动力总成的隔振要求。而主动悬置具有优良的隔振性能,但是其造价昂贵,成本太高且耗能也大,达到通用还需要很长时间。于是各大车企开始研发具有与主动悬置相近的隔振性能的半主动悬置,例如,将磁流变液应用到悬置中,设计了磁流变悬置,磁流变悬置由于其阻尼力连续可调、快速响应的优点,其隔振性能相较于被动悬置大大提高。At present, common vibration damping systems include rubber suspension, hydraulic suspension, semi-active control suspension and active suspension. Passive suspension will have dynamic hardening problems at high frequencies, and its dynamic characteristics cannot be adjusted in real time, making it difficult to meet the vibration isolation requirements of the automotive powertrain. Active suspension has excellent vibration isolation performance, but it is expensive, costs too high and consumes a lot of energy. It will take a long time to become universal. Therefore, major car companies began to develop semi-active suspensions with vibration isolation properties similar to active suspensions. For example, magnetorheological fluids were applied to the suspensions and magnetorheological suspensions were designed. Magnetorheological suspensions are Its damping force is continuously adjustable and its vibration isolation performance is greatly improved compared to passive suspension.
但是,目前的磁流变悬置的阻尼力可调范围较差,不能在低频高振幅和高频低振幅的工况下提供合适的阻尼力,限制了磁流变悬置的隔振效果。并且,磁流变悬置中的磁流变液的粘度较大,导致磁流变悬置在高频振动时的动态硬化现象(即磁流变悬置受到高频的振动激励时,磁流变悬置的阻尼通道内的液柱产生共振效应,使磁流变悬置的腔内压力急剧升高,导致磁流变悬置的腔内液体处于滞流的状态)突出。以及,磁流变悬置的腔体中均填充价格昂贵的磁流变液体,导磁流变悬置的生产制造成本较高。However, the current magnetorheological suspension has a poor adjustable damping force range and cannot provide appropriate damping force under low-frequency, high-amplitude and high-frequency, low-amplitude operating conditions, which limits the vibration isolation effect of the magnetorheological suspension. Moreover, the viscosity of the magnetorheological fluid in the magnetorheological suspension is relatively large, which leads to the dynamic hardening phenomenon of the magnetorheological suspension when it vibrates at high frequencies (that is, when the magnetorheological suspension is excited by high-frequency vibrations, the magnetic fluid The liquid column in the damping channel of the variable suspension produces a resonance effect, which causes the pressure in the cavity of the magnetorheological suspension to rise sharply, causing the liquid in the cavity of the magnetorheological suspension to be in a stagnant state) protruding. Furthermore, the cavity of the magnetorheological suspension is filled with expensive magnetorheological liquid, and the manufacturing cost of the magnetorheological suspension is relatively high.
因此,如何设计低成本、且减振效果良好的减振装置,是本领域技术人员需要思考的问题。Therefore, how to design a low-cost vibration damping device with good vibration damping effect is a question that those skilled in the art need to consider.
发明内容Contents of the invention
本申请提供了一种减振装置及减振控制方法,用以增大减振装置的阻尼力可调范围,提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。This application provides a vibration reduction device and a vibration reduction control method to increase the adjustable range of the damping force of the vibration reduction device, improve the vibration reduction effect of the vibration reduction device, and reduce the impact of high-frequency vibration energy on the vibration reduction device. dynamic hardening phenomenon.
第一方面,本申请提供了一种减振装置,该减振装置包括壳体、惯性通道结构和连接杆;壳体具有容纳腔;惯性通道结构设置于容纳腔内并将容纳腔分为第一腔体和第二腔体,惯性通道结构形成连通第一腔体和第二腔体的惯性通道;其中,第一腔体和第二腔体内填充有第一液体,第一液体在惯性通道内流动;连接杆的一端位于壳体外,另一端位于第一腔体内;其中,连接杆位于第一腔体内的一端,作用于惯性通道结构上使得惯性通道的入口面积变小。In a first aspect, the application provides a vibration damping device, which includes a housing, an inertia channel structure and a connecting rod; the housing has an accommodation cavity; the inertia channel structure is disposed in the accommodation cavity and divides the accommodation cavity into third An inertial channel structure forms an inertial channel connecting the first cavity and the second cavity; wherein, the first cavity and the second cavity are filled with a first liquid, and the first liquid is in the inertial channel. internal flow; one end of the connecting rod is located outside the shell, and the other end is located in the first cavity; wherein, one end of the connecting rod is located in the first cavity, acting on the inertial channel structure to reduce the inlet area of the inertial channel.
需要说明的是,惯性通道的入口为第一腔体内的第一液体流入惯性通道的第一流通截面,惯性通道的出口为第二腔体内的第一液体流入惯性通道的第二流通截面。It should be noted that the inlet of the inertial channel is the first flow section through which the first liquid in the first cavity flows into the inertial channel, and the outlet of the inertial channel is the second flow section through which the first liquid in the second cavity flows into the inertial channel.
本申请的技术方案中,减振装置中包括惯性通道结构和连接杆,连接杆位于第一腔体内的一端作用于惯性通道结构上,可以使得惯性通道的入口面积变小。如此,在减振装置受到不同类型的振动激励时,惯性通道的入口的面积大小可以自适应调整,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。例如,当减振装置受到低频率、大振幅冲击时,惯性通道的入口面积变小时,使得第一腔体和第二腔体内的第一液体流动较快,进而使得减振装置对外呈现为大刚度、大阻尼特性;当减振装置受到高频率、小振幅的振动激励时,惯性通道的入口面积变大,使得第一腔体和第二腔体内的第一液体流动缓慢,进而使得减振装置对外呈现为小刚度、小阻尼特性。In the technical solution of this application, the vibration damping device includes an inertial channel structure and a connecting rod. One end of the connecting rod located in the first cavity acts on the inertial channel structure, which can reduce the inlet area of the inertial channel. In this way, when the vibration damping device is excited by different types of vibrations, the area of the inlet of the inertial channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, effectively improving the damping effect of the damping device, and Reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. For example, when the vibration damping device is impacted by a low frequency and large amplitude, the inlet area of the inertia channel becomes smaller, causing the first liquid in the first cavity and the second cavity to flow faster, which in turn causes the vibration damping device to appear larger to the outside. Stiffness and large damping characteristics; when the vibration damping device is excited by high-frequency, small-amplitude vibrations, the inlet area of the inertial channel becomes larger, causing the first liquid in the first cavity and the second cavity to flow slowly, thereby making the vibration damping The device presents externally small stiffness and small damping characteristics.
在一些可能的实施方案中,第一液体可以为粘性流体。如此,在第一腔体和第二腔体内填充有粘性流体,相对于磁流变悬置在其腔体内全部填充磁流变液体的技术方案,可以有效降低减振装置的制造成本。In some possible embodiments, the first liquid may be a viscous fluid. In this way, the first cavity and the second cavity are filled with viscous fluid, which can effectively reduce the manufacturing cost of the vibration damping device compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological liquid.
需要说明的是,惯性通道的入口面积变小有多种情况,包括但不限于以下情况:It should be noted that there are many situations in which the inlet area of the inertial channel becomes smaller, including but not limited to the following situations:
情况1,减振装置还包括第一弹性件,第一弹性件固定于连接杆位于第一腔体内的一端;其中,连接杆位于第一腔体内的一端,作用于第一弹性件,第一弹性件与惯性通道结构朝向第一腔体的上表面接触,使得惯性通道的入口面积变小。如此,在减振装置中的连接杆受到振动激励时,连接杆位于第一腔体内的一端,作用于第一弹性件,使得第一弹性件与惯性通道结构朝向第一腔体的上表面接触,第一弹性件将其受到的力传递给惯性通道结构,使得惯性通道的入口面积变小。In case 1, the vibration damping device further includes a first elastic member, and the first elastic member is fixed to one end of the connecting rod located in the first cavity; wherein, one end of the connecting rod located in the first cavity acts on the first elastic member, and the first elastic member The elastic member contacts the upper surface of the inertial channel structure toward the first cavity, so that the inlet area of the inertial channel becomes smaller. In this way, when the connecting rod in the vibration damping device is excited by vibration, one end of the connecting rod located in the first cavity acts on the first elastic member, so that the first elastic member contacts the upper surface of the inertia channel structure toward the first cavity. , the first elastic member transmits the force it receives to the inertial channel structure, so that the inlet area of the inertial channel becomes smaller.
情况2,上述壳体的上表面设置有橡胶主簧;其中,连接杆位于壳体外的一端,作用于橡胶主簧,橡胶主簧产生变形,以使第一腔体内的第一液体冲击惯性通道结构朝向第一腔体的上表面,进而使得惯性通道的入口面积变小。如此,在减振装置中的连接杆受到振动激励时,连接杆位于壳体外的一端,作用于橡胶主簧,使得橡胶主簧产生变形,挤压第一腔体内的第一液体,以使第一腔体内的第一液体冲击惯性通道结构朝向第一腔体的上表面,进而使得惯性通道的入口面积变小。Case 2: The upper surface of the above-mentioned casing is provided with a rubber main spring; wherein, the connecting rod is located at one end outside the casing and acts on the rubber main spring. The rubber main spring deforms so that the first liquid in the first cavity impacts the inertia channel. The structure faces the upper surface of the first cavity, thereby making the inlet area of the inertia channel smaller. In this way, when the connecting rod in the damping device is excited by vibration, the connecting rod is located at one end outside the housing and acts on the rubber main spring, causing the rubber main spring to deform and squeeze the first liquid in the first cavity so that the second The first liquid in a cavity impacts the inertial channel structure toward the upper surface of the first cavity, thereby reducing the inlet area of the inertial channel.
类似的,惯性通道的入口面积变大有多种情况,包括但不限于以下情况:Similarly, there are many situations where the inlet area of the inertial channel becomes larger, including but not limited to the following situations:
情况1,连接杆位于第一腔体内的一端作用于第一弹性件的力消失,第一弹性件与惯性通道结构朝向第一腔体的上表面不接触,使得惯性通道的入口的面积变大。如此,在减振装置中的连接杆受到振动激励被吸收时,惯性通道的入口的面积变大。如此,在减振装置受到的振动激励被吸收时,第一弹性件与惯性通道结构朝向第一腔体的上表面不接触,使得惯性通道的入口的面积变大。In case 1, the force acting on the first elastic member from the end of the connecting rod located in the first cavity disappears, and the first elastic member does not contact the upper surface of the inertial channel structure toward the first cavity, so that the area of the inlet of the inertial channel becomes larger. . In this way, when the connecting rod in the vibration damping device receives vibration excitation and is absorbed, the area of the inlet of the inertia channel becomes larger. In this way, when the vibration excitation received by the vibration damping device is absorbed, the first elastic member does not contact the upper surface of the inertial channel structure toward the first cavity, so that the area of the inlet of the inertial channel becomes larger.
情况2,连接杆位于壳体外的一端作用于橡胶主簧的力消失,橡胶主簧产生的变形恢复,使得惯性通道的入口面积变大。如此,在减振装置受到的振动激励被吸收时,橡胶主簧产生的变形恢复,第一腔体内的第一液体不再冲击惯性通道结构朝向第一腔体的上表面,使得惯性通道的入口面积变大。In case 2, the force acting on the rubber main spring from the end of the connecting rod located outside the housing disappears, and the deformation produced by the rubber main spring recovers, making the inlet area of the inertia channel larger. In this way, when the vibration excitation received by the damping device is absorbed, the deformation produced by the rubber main spring recovers, and the first liquid in the first cavity no longer impacts the inertial channel structure toward the upper surface of the first cavity, so that the inlet of the inertial channel The area becomes larger.
上述惯性通道结构有多种实现方式,包括但不限于以下方式:There are many ways to implement the above inertial channel structure, including but not limited to the following ways:
方式1,惯性通道结构包括增压板、通道上板和通道下板;通道上板和通道下板固定连接,增压板的侧面设置有连通第一腔体和惯性通道的第一通孔,通道下板中设置有第一凹槽;增压板的上表面朝向第一腔体,增压板在第一腔体内的第一液体的冲击下,沿朝向第一凹槽的方向移动封堵于第一凹槽的开口处,以使第一通孔中未被第一凹槽遮挡的部分 与通道上板配合形成惯性通道的入口。Method 1, the inertial channel structure includes a boosting plate, an upper channel plate and a lower channel plate; the upper channel plate and the lower channel plate are fixedly connected, and a first through hole connecting the first cavity and the inertial channel is provided on the side of the boosting plate. A first groove is provided in the lower plate of the channel; the upper surface of the boosting plate faces the first cavity, and the boosting plate moves in the direction toward the first groove under the impact of the first liquid in the first cavity to block the first groove. At the opening of the first groove, the portion of the first through hole that is not blocked by the first groove cooperates with the upper plate of the channel to form the inlet of the inertia channel.
在方式1中,在惯性通道结构中设置了增压板、通道上板和通道下板,使得增压板、通道上板和通道下板可以配合形成入口面积自适应变化的惯性通道。In Mode 1, a boosting plate, an upper channel plate, and a lower channel plate are provided in the inertial channel structure, so that the boosting plate, the upper channel plate, and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area.
进一步的,在一些可能的实施方案中,所述第一凹槽内设置有第二弹性件和第二密封环,所述第二弹性件的一端与所述通道下板连接,所述第二弹性件的另一端通过所述第二密封环与所述增压板接触;其中,所述增压板沿朝向所述第一凹槽的方向移动,作用于所述第二弹性件,所述第二弹性件产生形变。在该技术方案中,增压板作用于第二弹性件,使所述第二弹性件产生变形,使得惯性通道的入口面积自适应变化。并且,第二弹性件可以吸收减振装置受到的部分振动激励,进一步增大减振装置的阻尼力可调范围,进而进一步提升减振装置的减振效果。其中,第二弹性件例如可以是弹簧,当减振装置受到较大的振动激励时,增压板由于受到较大的力而挤压弹簧向下移动,此时惯性通道的入口面积变小,惯性通道的雷诺数较小,减振装置具有较高的阻尼和刚度,有利于衰减振动;当减振装置承受较小的振动激励时,增压板受到的力较小,因此增压板向下移动的幅度较小,增压板不会挤压弹簧,此时惯性通道入口面积较大,惯性通道的雷诺数增大,沿程损失减小,有利于抑制怠速振动。Further, in some possible embodiments, a second elastic member and a second sealing ring are provided in the first groove, one end of the second elastic member is connected to the lower plate of the channel, and the second elastic member The other end of the elastic member is in contact with the boosting plate through the second sealing ring; wherein the boosting plate moves in the direction toward the first groove, acting on the second elastic part, and the The second elastic component deforms. In this technical solution, the pressurizing plate acts on the second elastic member to deform the second elastic member so that the inlet area of the inertial channel changes adaptively. Moreover, the second elastic member can absorb part of the vibration excitation received by the vibration damping device, further increasing the adjustable range of the damping force of the vibration damping device, thereby further improving the vibration damping effect of the vibration damping device. Wherein, the second elastic member can be a spring, for example. When the vibration damping device is excited by a larger vibration, the boosting plate is pressed by the larger force and moves downward. At this time, the inlet area of the inertia channel becomes smaller. The Reynolds number of the inertia channel is small, and the damping device has high damping and stiffness, which is beneficial to attenuating vibration; when the damping device withstands small vibration excitation, the force on the booster plate is smaller, so the booster plate moves toward The amplitude of the downward movement is small, and the supercharger plate will not squeeze the spring. At this time, the entrance area of the inertial channel is larger, the Reynolds number of the inertial channel increases, and the loss along the way is reduced, which is beneficial to suppressing idle vibration.
方式2,惯性通道结构包括通道上板和通道下板;通道下板的侧面设置有连通第一腔体和惯性通道的第四通孔;通道上板的上表面朝向第一腔体,通道上板在第一腔体内的第一液体的冲击下,沿朝向通道下板的方向移动封堵于第四通孔的开口处,以使第四通孔未被通道上板遮挡的部分与通道下板配合形成惯性通道的入口。 Mode 2, the inertial channel structure includes an upper channel plate and a lower channel plate; a fourth through hole connecting the first cavity and the inertial channel is provided on the side of the channel lower plate; the upper surface of the channel upper plate faces the first cavity, and the channel upper plate faces the first cavity. Under the impact of the first liquid in the first cavity, the plate moves in the direction toward the lower plate of the channel and blocks the opening of the fourth through hole, so that the part of the fourth through hole that is not blocked by the upper plate of the channel is connected with the lower plate of the channel. The plates cooperate to form the entrance to the inertia channel.
在方式2中,通过对惯性通道结构中的通道上板和通道下板的结构进行改进,使得通道上板和通道下板可以配合形成入口面积自适应变化的惯性通道。无需设置增压板,有效降低减振装置的结构冗余度。In method 2, by improving the structure of the upper channel plate and the lower channel plate in the inertial channel structure, the upper channel plate and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area. There is no need to install a booster plate, effectively reducing the structural redundancy of the vibration damping device.
进一步的,在一些可能的实施方案中,上述通道下板中设置有第二通孔,第二通孔中连通惯性通道和第二腔体的部分形成惯性通道的出口。Further, in some possible embodiments, a second through hole is provided in the lower plate of the channel, and the part of the second through hole that connects the inertial channel and the second cavity forms the outlet of the inertial channel.
在一些可能的实施方案中,上述减振装置还包括电磁线圈;第一弹性件可以为磁流变弹性体,进而第一弹性件的阻尼和刚度随所述电磁线圈形成的磁场强度变化,使得第一弹性件可以吸收减振装置受到的部分振动激励能量,进一步提升减振装置的减振效果,进而可以进一步减少减振装置的动态硬化现象。In some possible implementations, the above-mentioned damping device further includes an electromagnetic coil; the first elastic member can be a magnetorheological elastomer, and the damping and stiffness of the first elastic member change with the intensity of the magnetic field formed by the electromagnetic coil, so that The first elastic member can absorb part of the vibration excitation energy received by the damping device, further improving the damping effect of the damping device, and further reducing the dynamic hardening phenomenon of the damping device.
以及,上述惯性通道结构设置有磁流变解耦膜结构,磁流变解耦膜结构的阻尼和刚度随电磁线圈形成的磁场强度变化,使得磁流变解耦膜结构可以吸收减振装置受到的部分振动激励能量,进一步提升减振装置的减振效果,进而可以进一步减少减振装置在受到高频振动能量冲击时的动态硬化现象。其中,磁流变解耦模结构可以包括磁流变解耦膜以及填充于磁流变解耦膜内的磁流变液体。如此,仅仅在磁流变解耦膜结构内使用磁流变液体,相对于在磁流变悬置的腔体内全部填充磁流变液体的技术方案,可以有效降低磁流变液体的使用成本,从而节约减振装置的制造成本。And, the above-mentioned inertial channel structure is provided with a magnetorheological decoupling film structure. The damping and stiffness of the magnetorheological decoupling film structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling film structure can absorb the vibration of the vibration damping device. Part of the vibration excitation energy can further improve the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. The magnetorheological decoupling mode structure may include a magnetorheological decoupling film and a magnetorheological liquid filled in the magnetorheological decoupling film. In this way, only using magnetorheological fluid within the magnetorheological decoupling membrane structure can effectively reduce the cost of using magnetorheological fluid compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological fluid. This saves the manufacturing cost of the vibration damping device.
在一些可能的实施方案中,增压板的上表面还可以设置第三通孔,第一腔体中的第一液体通过第三通孔冲击磁流变解耦膜结构。在技术方案中,通过在增压板上的上表面设置第三通孔,在减振装置受到振动激励时,橡胶主簧产生变形,挤压第一腔体内的第一液体,使得第一腔体中的第一液体可以通过第三通孔冲击磁流变解耦膜结构,以将减振装置受到的部分振动激励传递至磁流变解耦膜结构。In some possible implementations, the upper surface of the boosting plate may also be provided with a third through hole, and the first liquid in the first cavity impacts the magnetorheological decoupling membrane structure through the third through hole. In the technical solution, by arranging a third through hole on the upper surface of the boosting plate, when the vibration damping device is excited by vibration, the rubber main spring deforms and squeezes the first liquid in the first cavity, so that the first cavity The first liquid in the body can impact the magnetorheological decoupling membrane structure through the third through hole, so as to transfer part of the vibration excitation received by the vibration damping device to the magnetorheological decoupling membrane structure.
在一些可能的实施方案中,减振装置还可以包括传感器和电流控制模块;电流控制模块分别与传感器和电磁线圈连接;传感器设置于连接杆位于第一腔体的一端,传感器用于检测连接杆的振动信号;电流控制模块用于根据传感器检测到的振动信号调整电磁线圈的电流大小。在该技术方案中,由于减振装置中包括传感器,使得减振装置可以感知其受到的振动激励对应的振动信号,并且减振装置中的电流控制模块可以基于该振动信号,对电磁线圈的电流大小进行调整,进而调整电磁线圈形成的磁场强度,而减振装置中的磁流变材料(例如,磁流变弹性体或磁流变解耦膜)的刚度和阻尼可以随该磁场强度变化,从而实现减振装置的刚度和阻尼的动态调整,充分发挥磁流变材料的快速响应和减振特性。In some possible implementations, the vibration damping device may also include a sensor and a current control module; the current control module is connected to the sensor and the electromagnetic coil respectively; the sensor is disposed at one end of the connecting rod located in the first cavity, and the sensor is used to detect the connecting rod vibration signal; the current control module is used to adjust the current of the electromagnetic coil according to the vibration signal detected by the sensor. In this technical solution, since the vibration reduction device includes a sensor, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module in the vibration reduction device can control the current of the electromagnetic coil based on the vibration signal. The size is adjusted to adjust the strength of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling film) in the damping device can change with the strength of the magnetic field. This enables dynamic adjustment of the stiffness and damping of the damping device and gives full play to the rapid response and damping characteristics of magnetorheological materials.
在一些可能的实施方案中,连接杆位于第一腔体的一端还可以设置有扰流板。该扰流板可以加速第一腔体内的第一液体流动。In some possible implementations, the end of the connecting rod located at the first cavity may also be provided with a spoiler. The spoiler can accelerate the flow of the first liquid in the first cavity.
第二方面,本申请还提供了一种减振装置,该减振装置包括壳体、惯性通道结构、连接杆和电磁线圈;壳体具有容纳腔,惯性通道结构设置于容纳腔内并将容纳腔分为第一腔体和第二腔体,惯性通道结构形成连通第一腔体和第二腔体的惯性通道;其中,第一腔体和第二腔体内填充有第一液体,第一液体在惯性通道内流动;连接杆的一端位于壳体外,另一端位于第一腔体内;其中,惯性通道结构设置有磁流变解耦膜结构,磁流变解耦膜结构的阻尼和刚度随电磁线圈形成的磁场强度变化。In a second aspect, the application also provides a vibration damping device, which includes a shell, an inertial channel structure, a connecting rod and an electromagnetic coil; the shell has a receiving cavity, and the inertial channel structure is disposed in the receiving cavity and will accommodate the shock absorbing device. The cavity is divided into a first cavity and a second cavity, and the inertial channel structure forms an inertial channel connecting the first cavity and the second cavity; wherein, the first cavity and the second cavity are filled with the first liquid, and the first cavity is filled with the first liquid. The liquid flows in the inertial channel; one end of the connecting rod is located outside the shell, and the other end is located in the first cavity; wherein, the inertial channel structure is provided with a magnetorheological decoupling membrane structure, and the damping and stiffness of the magnetorheological decoupling membrane structure vary with the The intensity of the magnetic field formed by the electromagnetic coil changes.
需要说明的,惯性通道的入口为第一腔体内的第一液体流入惯性通道的第一流通截面,惯性通道的出口为第二腔体内的第一液体流入惯性通道的第二流通截面。It should be noted that the inlet of the inertial channel is the first flow section through which the first liquid in the first cavity flows into the inertial channel, and the outlet of the inertial channel is the second flow section through which the first liquid in the second cavity flows into the inertial channel.
本申请的技术方案中,减振装置中包括磁流变解耦膜结构,磁流变解耦膜结构的阻尼和刚度随电磁线圈形成的磁场强度变化,使得磁流变解耦膜结构可以吸收减振装置受到的部分振动激励能量,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。In the technical solution of this application, the vibration damping device includes a magnetorheological decoupling membrane structure. The damping and stiffness of the magnetorheological decoupling membrane structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling membrane structure can absorb Part of the vibration excitation energy received by the vibration reduction device effectively increases the adjustable range of the damping force of the vibration reduction device, effectively improves the vibration reduction effect of the vibration reduction device, and reduces the dynamic hardening phenomenon of the vibration reduction device when it is impacted by high-frequency vibration energy. .
其中,第一液体可以为粘性流体。如此,本申请技术方案中通过在第一腔体和第二腔体内填充有粘性流体,相对于磁流变悬置在其腔体内全部填充磁流变液体的技术方案,可以有效降低磁流变液体的使用成本,从而可以有效降低减振装置的制造成本。Wherein, the first liquid may be a viscous fluid. In this way, in the technical solution of the present application, the first cavity and the second cavity are filled with viscous fluid, and compared to the technical solution in which the magnetorheological suspension is completely filled with magnetorheological liquid in its cavity, the magnetorheological force can be effectively reduced. The cost of using the liquid can effectively reduce the manufacturing cost of the vibration damping device.
其中,磁流变解耦膜结构包括磁流变解耦膜以及填充于磁流变解耦膜内的磁流变液体。如此,仅仅在磁流变解耦膜内使用磁流变液体,相对于在磁流变悬置的腔体内全部填充磁流变液体的技术方案,可以有效降低磁流变液体的使用成本,从而节约减振装置的制造成本。Wherein, the magnetorheological decoupling film structure includes a magnetorheological decoupling film and a magnetorheological liquid filled in the magnetorheological decoupling film. In this way, only using magnetorheological fluid in the magnetorheological decoupling film can effectively reduce the cost of using magnetorheological fluid compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological fluid, thus Save the manufacturing cost of the vibration damping device.
在一些可能的实施方案中,惯性通道结构设置有一个或多个孔,进而磁流变解耦膜结构设置于一个或多个孔中。示例1,惯性通道结构中设置有三个孔,磁流变解耦膜结构设置于这三个孔中。示例2,惯性通道结构中设置有一个孔,磁流变解耦膜结构设置于这个孔中。In some possible embodiments, the inertial channel structure is provided with one or more holes, and the magnetorheological decoupling membrane structure is disposed in the one or more holes. Example 1: Three holes are provided in the inertial channel structure, and the magnetorheological decoupling membrane structure is provided in these three holes. Example 2: A hole is provided in the inertial channel structure, and the magnetorheological decoupling membrane structure is placed in this hole.
在一些可能的实施方案中,连接杆位于第一腔体内的一端,作用于惯性通道结构上使得惯性通道的入口面积变小。在该技术方案中,减振装置中包括惯性通道结构和连接杆,连接杆位于第一腔体内的一端作用于惯性通道结构上,可以使得惯性通道的入口面积变小。如此,在减振装置受到不同类型的振动激励时,惯性通道的入口的面积大小可以自适应调整,有效增大减振装置的阻尼力可调范围,进一步有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。例如,当减振装置受到低频率、 大振幅冲击时,惯性通道的入口面积变小时,使得第一腔体和第二腔体内的第一液体流动较快,进而使得减振装置对外呈现为大刚度、大阻尼特性;当减振装置受到高频率、小振幅的振动激励时,惯性通道的入口面积变大,使得第一腔体和第二腔体内的第一液体流动缓慢,进而使得减振装置对外呈现为小刚度、小阻尼特性。In some possible implementations, the connecting rod is located at one end of the first cavity and acts on the inertial channel structure to reduce the inlet area of the inertial channel. In this technical solution, the vibration damping device includes an inertial channel structure and a connecting rod. One end of the connecting rod located in the first cavity acts on the inertial channel structure, which can reduce the inlet area of the inertial channel. In this way, when the vibration damping device is excited by different types of vibrations, the area of the inlet of the inertial channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, and further effectively improving the damping effect of the damping device. And reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. For example, when the vibration damping device is subjected to a low-frequency, large-amplitude impact, the inlet area of the inertial channel becomes smaller, causing the first liquid in the first cavity and the second cavity to flow faster, which in turn causes the vibration damping device to appear larger to the outside. Stiffness and large damping characteristics; when the vibration damping device is excited by high-frequency, small-amplitude vibrations, the inlet area of the inertial channel becomes larger, causing the first liquid in the first cavity and the second cavity to flow slowly, thereby making the vibration damping The device presents externally small stiffness and small damping characteristics.
需要说明的是,惯性通道的入口面积变小有多种情况,包括但不限于以下情况:It should be noted that there are many situations in which the inlet area of the inertial channel becomes smaller, including but not limited to the following situations:
情况1,减振装置还包括第一弹性件,第一弹性件固定于连接杆位于第一腔体内的一端;其中,连接杆位于第一腔体内的一端,作用于第一弹性件,第一弹性件与惯性通道结构朝向第一腔体的上表面接触,使得惯性通道的入口面积变小。In case 1, the vibration damping device further includes a first elastic member, and the first elastic member is fixed to one end of the connecting rod located in the first cavity; wherein, one end of the connecting rod located in the first cavity acts on the first elastic member, and the first elastic member The elastic member contacts the upper surface of the inertial channel structure toward the first cavity, so that the inlet area of the inertial channel becomes smaller.
情况2,上述壳体的上表面设置有橡胶主簧;其中,连接杆位于壳体外的一端,作用于橡胶主簧,橡胶主簧产生变形,以使第一腔体内的第一液体冲击惯性通道结构朝向第一腔体的上表面,进而使得惯性通道的入口面积变小。Case 2: The upper surface of the above-mentioned casing is provided with a rubber main spring; wherein, the connecting rod is located at one end outside the casing and acts on the rubber main spring. The rubber main spring deforms so that the first liquid in the first cavity impacts the inertia channel. The structure faces the upper surface of the first cavity, thereby making the inlet area of the inertia channel smaller.
类似的,惯性通道的入口面积变大有多种情况,包括但不限于以下情况:Similarly, there are many situations where the entrance area of the inertial channel becomes larger, including but not limited to the following situations:
情况1,连接杆位于第一腔体内的一端作用于第一弹性件的力消失,第一弹性件与惯性通道结构朝向第一腔体的上表面不接触,使得惯性通道的入口的面积变大。如此,在减振装置中的连接杆受到振动激励被吸收时,惯性通道的入口的面积变大。In case 1, the force acting on the first elastic member from the end of the connecting rod located in the first cavity disappears, and the first elastic member does not contact the upper surface of the inertial channel structure toward the first cavity, so that the area of the inlet of the inertial channel becomes larger. . In this way, when the connecting rod in the vibration damping device receives vibration excitation and is absorbed, the area of the inlet of the inertia channel becomes larger.
情况2,连接杆位于壳体外的一端作用于橡胶主簧的力消失,橡胶主簧产生的变形恢复,使得惯性通道的入口面积变大。In case 2, the force acting on the rubber main spring from the end of the connecting rod located outside the housing disappears, and the deformation produced by the rubber main spring recovers, making the inlet area of the inertia channel larger.
上述惯性通道结构有多种实现方式,包括但不限于以下方式:There are many ways to implement the above inertial channel structure, including but not limited to the following ways:
方式1,惯性通道结构包括增压板、通道上板和通道下板;通道上板和通道下板固定连接,增压板的侧面设置有连通第一腔体和惯性通道的第一通孔,通道下板中设置有第一凹槽;增压板的上表面朝向第一腔体,增压板在第一腔体内的第一液体的冲击下,沿朝向第一凹槽的方向移动封堵于第一凹槽的开口处,以使第一通孔中未被第一凹槽遮挡的部分与通道上板配合形成惯性通道的入口。Method 1, the inertial channel structure includes a boosting plate, an upper channel plate and a lower channel plate; the upper channel plate and the lower channel plate are fixedly connected, and a first through hole connecting the first cavity and the inertial channel is provided on the side of the boosting plate. A first groove is provided in the lower plate of the channel; the upper surface of the boosting plate faces the first cavity, and the boosting plate moves in the direction toward the first groove under the impact of the first liquid in the first cavity to block the first groove. At the opening of the first groove, the portion of the first through hole that is not blocked by the first groove cooperates with the upper plate of the channel to form the inlet of the inertia channel.
在方式1中,在惯性通道结构中设置了增压板、通道上板和通道下板,使得增压板、通道上板和通道下板可以配合形成入口面积自适应变化的惯性通道。In Mode 1, a boosting plate, an upper channel plate, and a lower channel plate are provided in the inertial channel structure, so that the boosting plate, the upper channel plate, and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area.
进一步的,在一些可能的实施方案中,所述第一凹槽内设置有第二弹性件和第二密封环,所述第二弹性件的一端与所述通道下板连接,所述第二弹性件的另一端通过所述第二密封环与所述增压板接触;其中,所述增压板沿朝向所述第一凹槽的方向移动,作用于所述第二弹性件,所述第二弹性件产生形变。在该技术方案中,增压板作用于第二弹性件,使所述第二弹性件产生变形,使得惯性通道的入口面积自适应变化。Further, in some possible embodiments, a second elastic member and a second sealing ring are provided in the first groove, one end of the second elastic member is connected to the lower plate of the channel, and the second elastic member The other end of the elastic member is in contact with the boosting plate through the second sealing ring; wherein the boosting plate moves in the direction toward the first groove, acting on the second elastic part, and the The second elastic component deforms. In this technical solution, the pressurizing plate acts on the second elastic member to deform the second elastic member so that the inlet area of the inertial channel changes adaptively.
方式2,惯性通道结构包括通道上板和通道下板;通道下板的侧面设置有连通第一腔体和惯性通道的第四通孔;通道上板的上表面朝向第一腔体,通道上板在第一腔体内的第一液体的冲击下,沿朝向通道下板的方向移动封堵于第四通孔的开口处,以使第四通孔未被通道上板遮挡的部分与通道下板配合形成惯性通道的入口。 Mode 2, the inertial channel structure includes an upper channel plate and a lower channel plate; a fourth through hole connecting the first cavity and the inertial channel is provided on the side of the channel lower plate; the upper surface of the channel upper plate faces the first cavity, and the channel upper plate faces the first cavity. Under the impact of the first liquid in the first cavity, the plate moves in the direction toward the lower plate of the channel and blocks the opening of the fourth through hole, so that the part of the fourth through hole that is not blocked by the upper plate of the channel is connected with the lower plate of the channel. The plates cooperate to form the entrance to the inertia channel.
在方式2中,通过对惯性通道结构中的通道上板和通道下板的结构进行改进,使得通道上板和通道下板可以配合形成入口面积自适应变化的惯性通道。无需设置增压板,有效降低减振装置的结构冗余度。In method 2, by improving the structure of the upper channel plate and the lower channel plate in the inertial channel structure, the upper channel plate and the lower channel plate can cooperate to form an inertial channel with adaptive changes in the inlet area. There is no need to install a booster plate, effectively reducing the structural redundancy of the vibration damping device.
进一步的,在一些可能的实施方案中,上述通道下板中设置有第二通孔,第二通孔中连通惯性通道和第二腔体的部分形成惯性通道的出口。Further, in some possible embodiments, a second through hole is provided in the lower plate of the channel, and the part of the second through hole that connects the inertial channel and the second cavity forms the outlet of the inertial channel.
在一些可能的实施方案中,第一弹性件可以为磁流变弹性体,进而第一弹性件的阻尼 和刚度随所述电磁线圈形成的磁场强度变化,使得第一弹性件可以吸收减振装置受到的部分振动激励能量,进一步提升减振装置的减振效果,进而可以进一步减少减振装置的动态硬化现象。In some possible implementations, the first elastic member can be a magnetorheological elastomer, and the damping and stiffness of the first elastic member change with the strength of the magnetic field formed by the electromagnetic coil, so that the first elastic member can absorb the vibration damping device Part of the vibration excitation energy received further improves the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device.
在一些可能的实施方案中,增压板的上表面还可以设置第三通孔,第一腔体中的第一液体通过第三通孔冲击磁流变解耦膜结构。在技术方案中,通过在增压板上的上表面设置第三通孔,在减振装置受到振动激励时,橡胶主簧产生变形,挤压第一腔体内的第一液体,使得第一腔体中的第一液体可以通过第三通孔冲击磁流变解耦膜结构,以将减振装置受到的部分振动激励传递至磁流变解耦膜结构。In some possible implementations, the upper surface of the boosting plate may also be provided with a third through hole, and the first liquid in the first cavity impacts the magnetorheological decoupling membrane structure through the third through hole. In the technical solution, by arranging a third through hole on the upper surface of the boosting plate, when the vibration damping device is excited by vibration, the rubber main spring deforms and squeezes the first liquid in the first cavity, so that the first cavity The first liquid in the body can impact the magnetorheological decoupling membrane structure through the third through hole, so as to transfer part of the vibration excitation received by the vibration damping device to the magnetorheological decoupling membrane structure.
在一些可能的实施方案中,减振装置还可以包括传感器和电流控制模块;电流控制模块分别与传感器和电磁线圈连接;传感器设置于连接杆位于第一腔体的一端,传感器用于检测连接杆的振动信号;电流控制模块用于根据传感器检测到的振动信号调整电磁线圈的电流大小。在该技术方案中,由于减振装置中包括传感器,使得减振装置可以感知其受到的振动激励对应的振动信号,并且减振装置中的电流控制模块可以基于该振动信号,对电磁线圈的电流大小进行调整,进而调整电磁线圈形成的磁场强度,而减振装置中的磁流变材料(例如,磁流变弹性体或磁流变解耦膜)的刚度和阻尼可以随该磁场强度变化,从而实现减振装置的刚度和阻尼的动态调整,充分发挥磁流变材料的快速响应和减振特性。In some possible implementations, the vibration damping device may also include a sensor and a current control module; the current control module is connected to the sensor and the electromagnetic coil respectively; the sensor is disposed at one end of the connecting rod located in the first cavity, and the sensor is used to detect the connecting rod vibration signal; the current control module is used to adjust the current of the electromagnetic coil according to the vibration signal detected by the sensor. In this technical solution, since the vibration reduction device includes a sensor, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module in the vibration reduction device can control the current of the electromagnetic coil based on the vibration signal. The size is adjusted to adjust the strength of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling film) in the damping device can change with the strength of the magnetic field. This enables dynamic adjustment of the stiffness and damping of the damping device and gives full play to the rapid response and damping characteristics of magnetorheological materials.
在一些可能的实施方案中,连接杆位于第一腔体的一端还可以设置有扰流板。该扰流板可以加速第一腔体内的第一液体流动。In some possible implementations, the end of the connecting rod located at the first cavity may also be provided with a spoiler. The spoiler can accelerate the flow of the first liquid in the first cavity.
第三方面,本申请还提供了一种减振装置,该减振装置包括壳体、惯性通道结构、连接杆、电磁线圈、和磁流变弹性体;壳体具有容纳腔,惯性通道结构设置于容纳腔内并将容纳腔分为第一腔体和第二腔体,惯性通道结构形成连通第一腔体和第二腔体的惯性通道;其中,第一腔体和第二腔体内填充有第一液体,第一液体在惯性通道内流动;连接杆的一端位于壳体外,另一端位于第一腔体内;其中,连接杆位于第一腔体内的一端,作用于惯性通道结构上使得惯性通道的入口面积变小;磁流变弹性体固定于连接杆位于第一腔体的一端;惯性通道结构设置有磁流变解耦膜结构,磁流变解耦膜结构和磁流变弹性体的阻尼和刚度随电磁线圈形成的磁场强度变化。In a third aspect, the application also provides a vibration damping device, which includes a shell, an inertial channel structure, a connecting rod, an electromagnetic coil, and a magnetorheological elastomer; the shell has a receiving cavity, and the inertial channel structure is provided In the accommodation cavity and the accommodation cavity is divided into a first cavity and a second cavity, the inertial channel structure forms an inertial channel connecting the first cavity and the second cavity; wherein, the first cavity and the second cavity are filled with There is a first liquid, and the first liquid flows in the inertial channel; one end of the connecting rod is located outside the shell, and the other end is located in the first cavity; wherein, one end of the connecting rod is located in the first cavity, acting on the inertial channel structure to cause the inertial The entrance area of the channel becomes smaller; the magnetorheological elastomer is fixed to the connecting rod at one end of the first cavity; the inertial channel structure is provided with a magnetorheological decoupling film structure, a magnetorheological decoupling film structure and a magnetorheological elastomer. The damping and stiffness vary with the strength of the magnetic field formed by the electromagnetic coil.
在本申请实施例提供的技术方案中,减振装置中包括惯性通道结构和连接杆,该连接杆位于第一腔体内的一端作用于惯性通道结构上,可以使得惯性通道的入口面积变小。如此,在减振装置受到不同类型的振动激励时,惯性通道的入口的面积大小可以自适应调整,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。并且,惯性通道结构设置有磁流变解耦膜结构,磁流变解耦膜结构的阻尼和刚度随电磁线圈形成的磁场强度变化,使得磁流变解耦膜结构可以吸收减振装置受到的部分振动激励能量,进一步提升减振装置的减振效果,进而可以进一步减少减振装置的动态硬化现象。以及,在减振装置受到振动激励时,连接杆位于第一腔体内的一端,作用于磁流变弹性体,使得磁流变弹性体可以将减振装置受到的部分振动激励传递至惯性通道结构;且磁流变弹性体的阻尼和刚度随电磁线圈形成的磁场强度变化,使得磁流变弹性体可以吸收减振装置受到的部分振动激励,进一步增大减振装置的阻尼力可调范围,进而进一步提升减振装置的减振效果。In the technical solution provided by the embodiment of the present application, the vibration damping device includes an inertial channel structure and a connecting rod. One end of the connecting rod located in the first cavity acts on the inertial channel structure, which can reduce the inlet area of the inertial channel. In this way, when the vibration damping device is excited by different types of vibrations, the area of the inlet of the inertial channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, effectively improving the damping effect of the damping device, and Reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. Moreover, the inertial channel structure is provided with a magnetorheological decoupling film structure. The damping and stiffness of the magnetorheological decoupling film structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling film structure can absorb the vibration of the vibration damping device. Part of the vibration excitation energy can further improve the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device. And, when the vibration damping device is excited by vibration, the connecting rod is located at one end of the first cavity and acts on the magnetorheological elastomer, so that the magnetorheological elastomer can transmit part of the vibration excitation received by the damping device to the inertial channel structure. ; And the damping and stiffness of the magnetorheological elastomer change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological elastomer can absorb part of the vibration excitation of the vibration damping device, further increasing the adjustable range of the damping force of the damping device, This further improves the damping effect of the damping device.
第四方面,本申请还提供了一种控制方法,应用于减振装置,减振装置包括壳体、连 接杆、惯性通道结构、电磁线圈、传感器和电流控制模块;其中,电流控制模块与电磁线圈和传感器分别连接,连接杆的一端位于壳体外,连接杆的另一端位于壳体内,且与传感器连接;惯性通道结构设置有磁流变解耦膜结构,磁流变解耦膜结构的阻尼和刚度随电磁线圈形成的磁场强度变化;该方法包括:通过传感器监测连接杆的振动信号;通过电流控制模块对振动信号进行处理,得到控制信号,控制信号用于调整电磁线圈的电流大小;其中,电磁线圈形成的磁场强度随电磁线圈的电流大小变化。In the fourth aspect, this application also provides a control method applied to a vibration damping device. The vibration damping device includes a shell, a connecting rod, an inertial channel structure, an electromagnetic coil, a sensor and a current control module; wherein the current control module and the electromagnetic The coil and the sensor are connected respectively, one end of the connecting rod is located outside the housing, and the other end of the connecting rod is located inside the housing and is connected to the sensor; the inertial channel structure is provided with a magnetorheological decoupling membrane structure, and the magnetorheological decoupling membrane structure has a damping and the stiffness changes with the intensity of the magnetic field formed by the electromagnetic coil; the method includes: monitoring the vibration signal of the connecting rod through a sensor; processing the vibration signal through the current control module to obtain a control signal, which is used to adjust the current size of the electromagnetic coil; where , the strength of the magnetic field formed by the electromagnetic coil changes with the current of the electromagnetic coil.
在该技术方案中,由于减振装置中包括传感器,使得减振装置可以感知其受到的振动激励对应的振动信号,并且减振装置中的电流控制模块可以基于该振动信号,对电磁线圈的电流大小进行调整,进而调整电磁线圈形成的磁场强度,而减振装置中的磁流变解耦膜结构的刚度和阻尼可以随该磁场强度变化,从而实现减振装置的刚度和阻尼的动态调整,充分发挥磁流变材料的快速响应和减振特性。In this technical solution, since the vibration reduction device includes a sensor, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module in the vibration reduction device can control the current of the electromagnetic coil based on the vibration signal. The size is adjusted to adjust the intensity of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological decoupling membrane structure in the damping device can change with the intensity of the magnetic field, thereby achieving dynamic adjustment of the stiffness and damping of the damping device. Take full advantage of the rapid response and vibration damping properties of magnetorheological materials.
可选的,该减振装置还包括磁流变弹体。如此,并且减振装置中的电流控制模块可以基于该振动信号,对电磁线圈的电流大小进行调整,进而调整电磁线圈形成的磁场强度,磁流变弹体的刚度和阻尼可以随该磁场强度变化,从而实现减振装置的刚度和阻尼的动态调整。Optionally, the vibration reduction device also includes a magnetorheological elastomer. In this way, the current control module in the vibration damping device can adjust the current of the electromagnetic coil based on the vibration signal, thereby adjusting the intensity of the magnetic field formed by the electromagnetic coil. The stiffness and damping of the magnetorheological elastomer can change with the intensity of the magnetic field. , thereby achieving dynamic adjustment of the stiffness and damping of the vibration damping device.
第五方面,本申请还提供了一种悬架***,包括如第一方面至第三方面中任一项所述的减振装置。In a fifth aspect, the present application also provides a suspension system, including the vibration damping device as described in any one of the first to third aspects.
第六方面,本申请还提供了一种悬置,包括如第一方面至第三方面中任一项所述的减振装置。In a sixth aspect, the present application also provides a suspension, including the vibration damping device according to any one of the first to third aspects.
第七方面,本申请还提供了一种车辆,包括如第五方面中所述的悬架***和第六方面中所述的悬置。In a seventh aspect, the present application also provides a vehicle, including the suspension system as described in the fifth aspect and the suspension as described in the sixth aspect.
图1A为本申请提供的第一种减振装置的结构示意图之一;Figure 1A is one of the structural schematic diagrams of the first vibration damping device provided by this application;
图1B为本申请提供的第一种减振装置的结构示意图之二;Figure 1B is the second structural schematic diagram of the first vibration damping device provided by this application;
图1C为本申请提供的第一种减振装置的结构示意图之三;Figure 1C is the third structural schematic diagram of the first vibration damping device provided by this application;
图1D为本申请提供的第一种减振装置的结构示意图之四;Figure 1D is the fourth structural schematic diagram of the first vibration damping device provided by this application;
图1E为本申请提供的第一种减振装置的结构示意图之五;Figure 1E is the fifth structural schematic diagram of the first vibration damping device provided by this application;
图2A为本申请提供的第二种减振装置的结构示意图之一;Figure 2A is one of the structural schematic diagrams of the second vibration damping device provided by this application;
图2B为本申请提供的第二种减振装置的结构示意图之二;Figure 2B is the second structural schematic diagram of the second vibration damping device provided by this application;
图2C为本申请提供的第二种减振装置的结构示意图之三;Figure 2C is the third structural schematic diagram of the second vibration damping device provided by this application;
图3为本申请提供的第三种减振装置的结构示意图;Figure 3 is a schematic structural diagram of the third vibration damping device provided by this application;
图4为本申请提供一种控制方法的流程示意图。Figure 4 is a schematic flow chart of a control method provided by this application.
附图标记:Reference signs:
100-壳体;100-shell;
101-第一腔体;102-第二腔体;103-橡胶主簧;104-上壳体;105-下壳体;106-底碗;101-first cavity; 102-second cavity; 103-rubber main spring; 104-upper shell; 105-lower shell; 106-bottom bowl;
200-惯性通道结构;200-Inertial channel structure;
210-增压板;211-第一通孔;212-第三通孔;210-supercharger plate; 211-first through hole; 212-third through hole;
220-通道上板;224-第五通孔;220-channel upper plate; 224-fifth through hole;
230-通道下板;231-第一凹槽;2311-第二密封环;2312-第二弹性件;232-第二通孔;233-第四通孔;234-第六通孔;230-channel lower plate; 231-first groove; 2311-second sealing ring; 2312-second elastic member; 232-second through hole; 233-fourth through hole; 234-sixth through hole;
240-惯性通道;241-惯性通道入口;242-惯性通道出口;240-Inertial channel; 241-Inertial channel entrance; 242-Inertial channel exit;
250-磁流变解耦膜结构;251-磁流变解耦膜;252-磁流变液体;250-Magnetorheological decoupling membrane structure; 251-Magnetorheological decoupling membrane; 252-Magnetorheological liquid;
300-连接杆;301-连接杆的第一端;302-连接杆的第二端;3021-线圈槽;3022-环形凹槽;3023-扰流板;300-connecting rod; 301-the first end of the connecting rod; 302-the second end of the connecting rod; 3021-coil groove; 3022-annular groove; 3023-spoiler;
400-第一弹性件;401-橡胶圈;400-first elastic member; 401-rubber ring;
500-电磁线圈;501-第一密封环;500-electromagnetic coil; 501-first sealing ring;
600-传感器;600-sensor;
800-加强块。800 - Reinforcement block.
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述。在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此,在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例,而是意味着“一个或多个但不是所有的实施例”,除非是以其他方式另外特别强调。另外,本说明书中涉及的“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below in conjunction with the accompanying drawings. Reference in this specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Therefore, the phrases "in one embodiment", "in some embodiments", "in other embodiments", "in other embodiments", etc. appearing in different places in this specification are not necessarily References are made to the same embodiment, but rather to "one or more but not all embodiments" unless specifically stated otherwise. In addition, words such as "first" and "second" used in this specification are only used for the purpose of distinguishing and describing, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.
首先,对本申请实施例中的部分用语进行解释说明,以便于本领域技术人员理解。First, some terms used in the embodiments of this application are explained to facilitate understanding by those skilled in the art.
1、磁流变液体,是一种铁磁性细微颗粒,是由能使磁性颗粒均匀分散的溶剂水、矿物油、硅油等及表面活性剂组成的稳定悬浮液体,在磁场的作用下具有高饱和磁化强度,其屈服应力随着外加磁场的变化而变化。因此,在外加磁场作用下,磁流变液体表现出非牛顿流体的特性,在毫秒级时间内从自由流动的液体转变为半固体甚至固体,呈现出强烈的可控流变特性。在本申请的一些实施例中,将磁流变液体填充于减振装置中的磁流变解耦膜中,形成磁流变解耦膜结构。如此,在减振装置受到冲击时,磁流变解耦膜结构的阻尼和刚度可以随着外加磁场的变化而变化,以吸收减振装置受到的冲击能量,进而有效减少减振装置的动态硬化现象。1. Magnetorheological liquid is a kind of ferromagnetic fine particles. It is a stable suspension liquid composed of solvent water, mineral oil, silicone oil, etc. and surfactants that can evenly disperse magnetic particles. It has high saturation under the action of a magnetic field. The magnetization strength and its yield stress change with the change of the external magnetic field. Therefore, under the influence of an external magnetic field, magnetorheological liquids exhibit the characteristics of non-Newtonian fluids, transforming from free-flowing liquids to semi-solids or even solids within milliseconds, showing strong controllable rheological characteristics. In some embodiments of the present application, the magnetorheological liquid is filled into the magnetorheological decoupling film in the vibration damping device to form a magnetorheological decoupling film structure. In this way, when the shock absorber is impacted, the damping and stiffness of the magnetorheological decoupling membrane structure can change with the change of the external magnetic field to absorb the impact energy of the shock absorber, thereby effectively reducing the dynamic hardening of the shock absorber. Phenomenon.
2、磁流变弹性体,是将微米尺度的铁磁性颗粒掺入到高分子聚合物中,在磁场环境下固化,从而基体内的颗粒具有链或柱状结构。磁流变弹性体的弹性模量可随外加磁场强度的变化而变化,且与普通磁流变液体相比,磁流变弹性体不但具有可控性、可逆性、响应迅速等高技术特征,还具有稳定性好等独特的优点。在本申请的一些实施例中,将磁流变弹性体设置在减振装置中,如此,在减振装置受到冲击时,磁流变解耦膜结构的阻尼和刚度可以随着外加磁场的变化而变化,以吸收减振装置受到的冲击能量,进而有效减少减振装置的动态硬化现象。2. Magneto-rheological elastomers incorporate micron-scale ferromagnetic particles into polymers and solidify them in a magnetic field environment, so that the particles in the matrix have a chain or columnar structure. The elastic modulus of magnetorheological elastomers can change with changes in the intensity of the external magnetic field. Compared with ordinary magnetorheological liquids, magnetorheological elastomers not only have high-tech features such as controllability, reversibility, and rapid response, but also It also has unique advantages such as good stability. In some embodiments of the present application, the magnetorheological elastomer is disposed in the damping device. In this way, when the damping device is impacted, the damping and stiffness of the magnetorheological decoupling membrane structure can change with the external magnetic field. And changes to absorb the impact energy received by the vibration damping device, thereby effectively reducing the dynamic hardening phenomenon of the vibration damping device.
3、惯性通道,也可称作阻尼通道。在本申请实施例中,减振装置中的壳体具有的容纳腔,且设置于该容纳腔内的惯性通道结构将其分为第一腔体和第二腔体。并且,惯性通道结构形成的惯性通道连通第一腔体和第二腔体,进而在减振装置受到冲击时,第一腔体 和第二腔体内填充的液体可以通过该惯性通道来回流动,吸收减振装置受到的冲击能量。3. Inertial channel, also called damping channel. In the embodiment of the present application, the housing in the vibration damping device has an accommodation cavity, and an inertial channel structure provided in the accommodation cavity divides it into a first cavity and a second cavity. Moreover, the inertial channel formed by the inertial channel structure connects the first cavity and the second cavity, and when the shock absorbing device is impacted, the liquid filled in the first cavity and the second cavity can flow back and forth through the inertial channel, absorbing The impact energy received by the vibration damping device.
4、动态硬化现象,即减振装置受到高频的振动激励时,减振装置的惯性通道内的液柱产生共振效应,使得减振装置的腔内压力急剧升高,导致减振装置的腔内液体处于滞流的状态。4. Dynamic hardening phenomenon, that is, when the vibration damping device is excited by high-frequency vibration, the liquid column in the inertial channel of the damping device produces a resonance effect, causing the pressure in the cavity of the damping device to rise sharply, causing the cavity of the damping device to The liquid inside is in a stagnant state.
5、虹吸效应,即减振装置受到的振动激励被减振装置吸收之后,第二腔体内填充的第一液体通过该惯性通道流入第一腔体内。5. Siphon effect, that is, after the vibration excitation received by the vibration damping device is absorbed by the vibration damping device, the first liquid filled in the second cavity flows into the first cavity through the inertial channel.
本申请提供了三种减振装置,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。下面将结合附图和具体实施例对本申请作进一步地详细描述。This application provides three types of vibration reduction devices, which effectively increase the adjustable range of the damping force of the vibration reduction device, effectively improve the vibration reduction effect of the vibration reduction device, and reduce the dynamic hardening phenomenon of the vibration reduction device when it is impacted by high-frequency vibration energy. . The present application will be described in further detail below with reference to the accompanying drawings and specific embodiments.
实施例1,第一种减振装置。Embodiment 1, the first vibration damping device.
请参见图1A,图1A为本申请提供的第一种减振装置的结构示意图之一,该减振装置包括壳体100、惯性通道结构200和连接杆300;其中,壳体100具有容纳腔,惯性通道结构200设置于该容纳腔内并将容纳腔分为第一腔体101和第二腔体102,惯性通道结构形成连通第一腔体101和第二腔体102的惯性通道240。连接杆300的第一端301位于壳体100外,第二端302位于第一腔体101内。其中,连接杆300的第二端301,作用于惯性通道结构200上,可以使得惯性通道的入口241面积变小。如此,在减振装置受到不同类型的振动激励时,惯性通道的入口的面积大小可以自适应调整,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。例如,当减振装置受到低频率、大振幅冲击时,惯性通道的入口241的面积变小时,使得第一腔体101和第二腔体102内的第一液体流动较快,进而使得减振装置对外呈现为大刚度、大阻尼特性;当减振装置受到高频率、小振幅的振动激励时,惯性通道的入口242面积变大,使得第一腔体101和第二腔体102内的第一液体流动缓慢,进而使得减振装置对外呈现为小刚度、小阻尼特性。Please refer to Figure 1A. Figure 1A is one of the structural schematic diagrams of the first vibration damping device provided by this application. The vibration damping device includes a housing 100, an inertia channel structure 200 and a connecting rod 300; wherein the housing 100 has a receiving cavity. , the inertia channel structure 200 is disposed in the accommodation cavity and divides the accommodation cavity into a first cavity 101 and a second cavity 102. The inertia channel structure forms an inertia channel 240 connecting the first cavity 101 and the second cavity 102. The first end 301 of the connecting rod 300 is located outside the housing 100 , and the second end 302 is located within the first cavity 101 . Among them, the second end 301 of the connecting rod 300 acts on the inertial channel structure 200, which can reduce the area of the inlet 241 of the inertial channel. In this way, when the vibration damping device is excited by different types of vibrations, the area of the inlet of the inertia channel can be adjusted adaptively, effectively increasing the adjustable range of the damping force of the damping device, effectively improving the damping effect of the damping device, and Reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. For example, when the vibration damping device is subjected to a low-frequency, large-amplitude impact, the area of the inlet 241 of the inertia channel becomes smaller, causing the first liquid in the first cavity 101 and the second cavity 102 to flow faster, thereby reducing the vibration. The device exhibits large stiffness and large damping characteristics to the outside; when the vibration damping device is excited by high-frequency, small-amplitude vibrations, the area of the inlet 242 of the inertial channel becomes larger, causing the first cavity 101 and the second cavity 102 to The liquid flows slowly, which causes the vibration damping device to exhibit small stiffness and small damping characteristics to the outside world.
其中,第一腔体101和第二腔体102内填充有第一液体,第一液体可以在惯性通道240内来回流动,惯性通道的入口241为第一腔体101内的第一液体流入惯性通道的第一流通截面,惯性通道的出口242为第二腔体102内的第一液体流入惯性通道的第二流通截面。因此,在一些可能的实施例中,第一腔体101可以称作第一液室,第二腔体102可以称作第二液室。在具体实施时,上述第一液体可以为粘性流体或磁流变液体。需要说明的是,在第一腔体101和第二腔体102内填充粘性流体,相对于磁流变悬置在其腔体内填充磁流变液体的技术方案,可以有效降低减振装置的成本。The first cavity 101 and the second cavity 102 are filled with the first liquid, and the first liquid can flow back and forth in the inertial channel 240. The inlet 241 of the inertial channel is where the first liquid in the first cavity 101 flows into the inertial channel. The first flow section of the channel and the outlet 242 of the inertial channel are the second flow section through which the first liquid in the second cavity 102 flows into the inertial channel. Therefore, in some possible embodiments, the first cavity 101 may be called a first liquid chamber, and the second cavity 102 may be called a second liquid chamber. In specific implementation, the first liquid may be a viscous fluid or a magnetorheological liquid. It should be noted that filling the first cavity 101 and the second cavity 102 with viscous fluid can effectively reduce the cost of the vibration damping device compared to the technical solution of filling the cavity with magnetorheological liquid in the magnetorheological suspension. .
请参见图1B,壳体100包括橡胶主簧103、上壳体104、下壳体105、和弹性底碗106;其中,上壳体104具有开口,橡胶主簧103设置于开口处,上壳体104、橡胶主簧103和惯性通道结构200之间形成第一腔体101;下壳体105、弹性底碗106、和惯性通道结构200之间形成第二腔体102。以及,上述减振装置还包括加强块800,该加强块800与连接杆300固定连接。Referring to Figure 1B, the housing 100 includes a rubber main spring 103, an upper housing 104, a lower housing 105, and an elastic bottom bowl 106; the upper housing 104 has an opening, the rubber main spring 103 is disposed at the opening, and the upper housing 104 has an opening. The first cavity 101 is formed between the body 104, the rubber main spring 103 and the inertial channel structure 200; the second cavity 102 is formed between the lower housing 105, the elastic bottom bowl 106 and the inertial channel structure 200. Moreover, the above-mentioned vibration damping device also includes a reinforcing block 800, which is fixedly connected to the connecting rod 300.
本申请实施例中,惯性通道的入口241的面积变小有多种情况,包括但不限于以下情况:In the embodiment of the present application, there are many situations in which the area of the entrance 241 of the inertial channel becomes smaller, including but not limited to the following situations:
情况1,请继续参见图1B,减振装置还包括第一弹性件400,第一弹性件400固定于 连接杆300的第二端302。因此,在减振装置受到振动激励时,连接杆300的第二端302可以作用于第一弹性件400,第一弹性件400与惯性通道结构200朝向第一腔体的上表面接触,使得第一弹性件400可以将减振装置受到的振动激励传递至惯性通道结构200,使得惯性通道的入口241的面积变小。In case 1, please continue to refer to Figure 1B. The vibration damping device also includes a first elastic member 400. The first elastic member 400 is fixed to the second end 302 of the connecting rod 300. Therefore, when the vibration damping device is excited by vibration, the second end 302 of the connecting rod 300 can act on the first elastic member 400, and the first elastic member 400 contacts the upper surface of the inertial channel structure 200 toward the first cavity, so that the first elastic member 400 contacts the upper surface of the inertial channel structure 200 toward the first cavity, so that the An elastic member 400 can transmit the vibration excitation received by the damping device to the inertial channel structure 200, so that the area of the inlet 241 of the inertial channel becomes smaller.
可选的,第一弹性件400可以为磁流变弹性体或橡胶圈。Optionally, the first elastic member 400 may be a magnetorheological elastomer or a rubber ring.
相应的,第一弹性件400为磁流变弹性体时,可以在减振装置中设置电磁线圈500,使得第一弹性件400的阻尼和刚度随电磁线圈形成的磁场强度变化。如此,在减振装置受到振动激励时,第一弹性件400可以吸收减振装置受到的部分振动激励,进一步增大减振装置的阻尼力可调范围,进而进一步提升减振装置的减振效果,以及有效减少减振装置的动态硬化现象。如图1B所示,在一些可能的实施例中,连接杆300的第二端302还设置有线圈槽3021和环形凹槽3022,线圈槽3021内设有电磁线圈500,电磁线圈500的外侧设有第一密封环501来实现对电磁线圈500的密封;第一弹性件400设置于环形凹槽3022内,且第一弹性件400的上侧和圆周侧与环形凹槽3022的内壁接触。Correspondingly, when the first elastic member 400 is a magnetorheological elastomer, an electromagnetic coil 500 can be provided in the vibration damping device, so that the damping and stiffness of the first elastic member 400 change with the intensity of the magnetic field formed by the electromagnetic coil. In this way, when the vibration damping device is excited by vibration, the first elastic member 400 can absorb part of the vibration excitation received by the damping device, further increasing the adjustable range of the damping force of the damping device, and further improving the damping effect of the damping device. , and effectively reduce the dynamic hardening phenomenon of the vibration damping device. As shown in Figure 1B, in some possible embodiments, the second end 302 of the connecting rod 300 is also provided with a coil slot 3021 and an annular groove 3022. The coil slot 3021 is provided with an electromagnetic coil 500, and the outside of the electromagnetic coil 500 is provided with a coil slot 3021 and an annular groove 3022. There is a first sealing ring 501 to seal the electromagnetic coil 500; the first elastic member 400 is disposed in the annular groove 3022, and the upper side and circumferential side of the first elastic member 400 are in contact with the inner wall of the annular groove 3022.
可选的,连接杆300的第二端302设置有扰流板3023,扰流板3023可以加速第一腔体101内的第一液体流动。Optionally, the second end 302 of the connecting rod 300 is provided with a spoiler 3023, which can accelerate the flow of the first liquid in the first cavity 101.
情况2,请继续参见图1B,由于上述壳体100的上表面设置有橡胶主簧103,连接杆300的第一端301可以作用于橡胶主簧103,橡胶主簧103产生变形,挤压第一腔体101内的第一液体,使得第一腔体101内的第一液体冲击惯性通道结构200朝向第一腔体101的上表面,进而使得惯性通道的入口241的面积变小。In case 2, please continue to refer to FIG. 1B. Since the rubber main spring 103 is provided on the upper surface of the housing 100, the first end 301 of the connecting rod 300 can act on the rubber main spring 103, and the rubber main spring 103 deforms and squeezes the second rubber main spring 103. The first liquid in the first cavity 101 causes the first liquid in the first cavity 101 to impact the inertial channel structure 200 toward the upper surface of the first cavity 101, thereby reducing the area of the inlet 241 of the inertial channel.
情况3,减振装置受到振动激励时,连接杆300的第二端302可以作用于第一弹性件400,第一弹性件400与惯性通道结构200朝向第一腔体的上表面接触,使得第一弹性件400可以将减振装置受到的振动激励传递至惯性通道结构200;以及,连接杆300的第一端301作用于橡胶主簧103,橡胶主簧103产生变形,挤压第一腔体101内的第一液体,使得第一腔体101内的第一液体冲击惯性通道结构200朝向第一腔体101的上表面,使得惯性通道的入口241的面积变小。In case 3, when the vibration damping device is excited by vibration, the second end 302 of the connecting rod 300 can act on the first elastic member 400, and the first elastic member 400 contacts the upper surface of the inertial channel structure 200 toward the first cavity, so that the first elastic member 400 contacts the upper surface of the first cavity. An elastic member 400 can transmit the vibration excitation of the damping device to the inertial channel structure 200; and the first end 301 of the connecting rod 300 acts on the rubber main spring 103, and the rubber main spring 103 deforms and squeezes the first cavity The first liquid in the first cavity 101 causes the first liquid in the first cavity 101 to impact the inertial channel structure 200 toward the upper surface of the first cavity 101, so that the area of the inlet 241 of the inertial channel becomes smaller.
类似的,本申请实施例中,惯性通道的入口241的面积变大有多种实现方式,包括但不限于以下方式:Similarly, in the embodiment of the present application, there are many ways to increase the area of the inlet 241 of the inertial channel, including but not limited to the following ways:
情况1,连接杆300的第二端302作用于第一弹性件400的力消失,第一弹性件400与惯性通道结构朝向第一腔体101的上表面不接触,使得惯性通道的入口241的面积变大。如此,在减振装置中的连接杆受到振动激励被吸收时,惯性通道的入口241的面积变大。如此,在减振装置受到的振动激励被吸收时,第一弹性件400与惯性通道结构朝向第一腔体101的上表面不接触,使得惯性通道的入口的面积变大。In case 1, the force exerted by the second end 302 of the connecting rod 300 on the first elastic member 400 disappears, and the first elastic member 400 does not contact the upper surface of the inertial channel structure toward the first cavity 101, so that the inlet 241 of the inertial channel is The area becomes larger. In this way, when the connecting rod in the vibration damping device receives vibration excitation and is absorbed, the area of the inlet 241 of the inertia channel becomes larger. In this way, when the vibration excitation received by the vibration damping device is absorbed, the first elastic member 400 is not in contact with the upper surface of the inertial channel structure toward the first cavity 101, so that the area of the inlet of the inertial channel becomes larger.
情况2,连接杆300的第一端303作用于橡胶主簧103的力消失,橡胶主簧103产生的变形恢复,使得惯性通道的入口241的面积变大。如此,在减振装置受到的振动激励被吸收时,橡胶主簧103产生的变形恢复,第一腔体101内的第一液体不再冲击惯性通道结构朝向第一腔体101的上表面,使得惯性通道的入口241的面积变大。此时,减振装置会产生虹吸效应,第二腔体102内的第一液体会从惯性通道流入第一腔体101。In case 2, the force exerted by the first end 303 of the connecting rod 300 on the rubber main spring 103 disappears, and the deformation produced by the rubber main spring 103 is restored, so that the area of the inlet 241 of the inertia channel becomes larger. In this way, when the vibration excitation received by the damping device is absorbed, the deformation produced by the rubber main spring 103 is restored, and the first liquid in the first cavity 101 no longer impacts the inertial channel structure toward the upper surface of the first cavity 101, so that The area of the entrance 241 of the inertia channel becomes larger. At this time, the vibration damping device will produce a siphon effect, and the first liquid in the second cavity 102 will flow into the first cavity 101 from the inertial channel.
情况3,减振装置受到的振动激励被吸收时,连接杆300的第二端302作用于第一弹性件400的力消失,第一弹性件400与惯性通道结构朝向第一腔体101的上表面不接触;以及连接杆300的第一端303作用于橡胶主簧103的力消失,橡胶主簧103产生的变形恢 复,使得惯性通道的入口241的面积变大。In case 3, when the vibration excitation received by the damping device is absorbed, the force exerted by the second end 302 of the connecting rod 300 on the first elastic member 400 disappears, and the first elastic member 400 and the inertia channel structure move upward toward the first cavity 101 The surfaces are not in contact; and the force exerted by the first end 303 of the connecting rod 300 on the rubber main spring 103 disappears, and the deformation produced by the rubber main spring 103 is restored, so that the area of the inlet 241 of the inertia channel becomes larger.
下面对惯性通道结构200进行详细的介绍。The inertial channel structure 200 is introduced in detail below.
请继续参见图1B,在一些可能的实施方式中,惯性通道结构200包括增压板210、通道上板220和通道下板230,增压板210、通道上板220和通道下板230配合形成惯性通道240。其中,增压板210的侧面可设置连通第一腔体101和惯性通道的第一通孔211,通道下板230中设置有第一凹槽231;由于增压板210的上表面朝向第一腔体101,增压板210在第一腔体101内的第一液体的冲击下,可沿朝向第一凹槽231的方向移动封堵于第一凹槽231的开口处,以使第一通孔211中未被第一凹槽231遮挡的部分与通道上板220配合形成惯性通道的入口241。以及,通道下板230中设置有第二通孔232,第二通孔232中连通惯性通道和第二腔体102的部分形成惯性通道的出口242。其中,第一通孔211和第二通孔232具体可以为圆形孔、细长孔、弯折状孔或者缝隙等结构形式,本申请实施例不作具体限制。Please continue to refer to FIG. 1B . In some possible implementations, the inertial channel structure 200 includes a pressurizing plate 210 , an upper channel plate 220 and a lower channel plate 230 . The pressurizing plate 210 , the upper channel plate 220 and the lower channel plate 230 are formed by cooperation. Inertial channel 240. Among them, a first through hole 211 connecting the first cavity 101 and the inertia channel can be provided on the side of the boosting plate 210, and a first groove 231 is provided in the lower plate 230 of the channel; since the upper surface of the boosting plate 210 faces the first In the cavity 101, under the impact of the first liquid in the first cavity 101, the boosting plate 210 can move in the direction toward the first groove 231 and block the opening of the first groove 231, so that the first The portion of the through hole 211 that is not blocked by the first groove 231 cooperates with the channel upper plate 220 to form the inlet 241 of the inertia channel. In addition, the channel lower plate 230 is provided with a second through hole 232, and the portion of the second through hole 232 that connects the inertial channel and the second cavity 102 forms the outlet 242 of the inertial channel. The first through hole 211 and the second through hole 232 may be in the form of circular holes, elongated holes, bent holes, slits, or other structural forms, which are not specifically limited in the embodiments of the present application.
其中,通道上板220和通道下板230固定连接,例如可以在通道上板220和通道下板230中设置同轴的定位销孔,并定位销孔中设置定位销,实现通道上板220和通道下板230的固定连接。Among them, the channel upper plate 220 and the channel lower plate 230 are fixedly connected. For example, coaxial positioning pin holes can be provided in the channel upper plate 220 and the channel lower plate 230, and positioning pins are provided in the positioning pin holes to realize the channel upper plate 220 and the channel lower plate 230. Fixed connection of channel lower plate 230.
进一步的,请继续参见图1B,第一凹槽231内可设置第二弹性件2312和第二密封环2311,第二弹性件2312的一端与通道下板230连接,第二弹性件2312的另一端通过第二密封环2311与增压板210接触。其中,第二密封环2311用于对第二弹性件2312进行密封。由于第二弹性件2312的一端通过第二密封环2311与增压板210接触,因此增压板210沿朝向通道下板230的方向移动,增压板210会作用于第二弹性件2312,挤压第二弹性件2312,第二弹性件2312产生变形,使得增压板210中的第一通孔211的部分被第一凹槽231遮挡,进而使得惯性通道的入口241的面积变小。如此,在减振装置受到的振动激励时,增压板210可以作用于第二弹性件2312,使第二弹性件2312产生变形,使得惯性通道的入口面积自适应变化。并且,第二弹性件2312可以吸收减振装置受到的部分振动激励,进一步增大减振装置的阻尼力可调范围,进而进一步提升减振装置的减振效果。Further, please continue to refer to FIG. 1B . A second elastic member 2312 and a second sealing ring 2311 can be disposed in the first groove 231 . One end of the second elastic member 2312 is connected to the channel lower plate 230 , and the other end of the second elastic member 2312 is connected to the channel lower plate 230 . One end contacts the booster plate 210 through the second sealing ring 2311. The second sealing ring 2311 is used to seal the second elastic member 2312. Since one end of the second elastic member 2312 contacts the boosting plate 210 through the second sealing ring 2311, the boosting plate 210 moves in the direction toward the channel lower plate 230, and the boosting plate 210 will act on the second elastic member 2312 to squeeze the When the second elastic member 2312 is pressed, the second elastic member 2312 deforms, so that part of the first through hole 211 in the boosting plate 210 is blocked by the first groove 231, thereby reducing the area of the inlet 241 of the inertia channel. In this way, when the vibration damping device is excited by vibration, the boosting plate 210 can act on the second elastic member 2312 to deform the second elastic member 2312 so that the inlet area of the inertial channel changes adaptively. In addition, the second elastic member 2312 can absorb part of the vibration excitation received by the vibration damping device, further increasing the adjustable range of the damping force of the vibration damping device, and further improving the vibration damping effect of the vibration damping device.
可选的,第二弹性件2312可以包括波纹管、弹簧、或弹性膜片中的任一项,本申请实施例不作具体的限制。示例性的,第二弹性件2312为弹簧时,当减振装置受到较大的振动激励时,增压板210由于受到较大的力而挤压弹簧向下移动,此时惯性通道的入口面积变小,惯性通道的雷诺数较小,减振装置具有较高的阻尼和刚度,有利于衰减振动;当减振装置承受较小的振动激励时,增压板210受到的力较小,因此增压板210向下移动的幅度较小,增压板210不会挤压弹簧,此时惯性通道入口(271)面积较大,惯性通道的雷诺数增大,沿程损失减小,有利于抑制怠速振动。Optionally, the second elastic member 2312 may include any one of a bellows, a spring, or an elastic diaphragm, which is not specifically limited in the embodiment of this application. For example, when the second elastic member 2312 is a spring, when the damping device is excited by a large vibration, the boosting plate 210 is pressed by a large force and moves downward. At this time, the inlet area of the inertia channel becomes smaller, the Reynolds number of the inertia channel is smaller, and the vibration damping device has higher damping and stiffness, which is beneficial to attenuating vibration; when the damping device withstands small vibration excitation, the force on the boosting plate 210 is smaller, so The downward movement of the boosting plate 210 is small, and the boosting plate 210 will not squeeze the spring. At this time, the area of the inertial channel entrance (271) is larger, the Reynolds number of the inertial channel increases, and the loss along the way is reduced, which is beneficial to Suppress idling vibration.
请参见图1C,在另一些可能的实施方式中,惯性通道结构200包括通道上板220和通道下板230,通道上板220和通道下板230配合形成惯性通道240。其中,通道下板230的侧面设置有连通第一腔体101和惯性通道的第四通孔233;由于的通道上板220的上表面朝向第一腔体101,因此减振装置受到冲击时连接杆300的第一端301可以作用于橡胶主簧103,橡胶主簧103产生变形,挤压第一腔体101内的第一液体,使得第一腔体101内的第一液体冲击通道上板220,进而通道上板220可沿朝向通道下板230的方向移动封 堵于第四通孔233的开口处,以使第四通孔233中未被通道上板220遮挡的部分与通道下板230配合形成惯性通道的入口241。以及,通道下板230中设置有第二通孔232,第二通孔232中连通惯性通道和第二腔体102的部分形成惯性通道的出口242。并且,惯性通道的入口241的面积随通道上板220沿朝向通道下板230的方向移动的幅度变化,例如,通道上板220移动的幅度越大,惯性通道的入口241的面积越小。如此,通道上板220和通道下板230可以配合形成入口面积自适应变化的惯性通道,无需设置增压板,有效降低减振装置的结构冗余度。Referring to FIG. 1C , in other possible implementations, the inertial channel structure 200 includes an upper channel plate 220 and a lower channel plate 230 . The upper channel plate 220 and the lower channel plate 230 cooperate to form an inertial channel 240 . Among them, the side of the channel lower plate 230 is provided with a fourth through hole 233 that connects the first cavity 101 and the inertial channel; since the upper surface of the channel upper plate 220 faces the first cavity 101, the shock absorbing device is connected when it is impacted. The first end 301 of the rod 300 can act on the rubber main spring 103. The rubber main spring 103 deforms and squeezes the first liquid in the first cavity 101, so that the first liquid in the first cavity 101 impacts the upper plate of the channel. 220, and then the channel upper plate 220 can move in the direction toward the channel lower plate 230 to block the opening of the fourth through hole 233, so that the portion of the fourth through hole 233 that is not blocked by the channel upper plate 220 is connected with the channel lower plate. 230 cooperates to form the entrance 241 of the inertia channel. In addition, the channel lower plate 230 is provided with a second through hole 232, and the portion of the second through hole 232 that connects the inertial channel and the second cavity 102 forms the outlet 242 of the inertial channel. Moreover, the area of the inlet 241 of the inertial channel changes with the movement amplitude of the upper channel plate 220 in the direction toward the lower channel plate 230. For example, the greater the movement amplitude of the upper channel plate 220, the smaller the area of the inlet 241 of the inertial channel. In this way, the upper channel plate 220 and the lower channel plate 230 can cooperate to form an inertial channel with an adaptively changing inlet area, eliminating the need for a booster plate and effectively reducing the structural redundancy of the vibration damping device.
进一步的,请参见图1D,上述惯性通道结构200中还可以设置磁流变解耦膜结构250。在图1D中,通道上板220中设置了第五通孔224,通道下板230中设置了第六通孔234,第五通孔224和第六通孔234相互配合夹持磁流变解耦膜结构250。需要说明的,第五通孔224和第六通孔234在具体实施时可以是一个或多个通孔,图1D中第五通孔224和第六通孔234仅仅是以三个通孔为例,并非限定。Further, please refer to FIG. 1D , a magnetorheological decoupling membrane structure 250 can also be provided in the above-mentioned inertial channel structure 200 . In Figure 1D, a fifth through hole 224 is provided in the channel upper plate 220, and a sixth through hole 234 is provided in the channel lower plate 230. The fifth through hole 224 and the sixth through hole 234 cooperate with each other to clamp the magnetorheological solution. Coupling film structure 250. It should be noted that the fifth through hole 224 and the sixth through hole 234 may be one or more through holes during specific implementation. In FIG. 1D, the fifth through hole 224 and the sixth through hole 234 are only three through holes. Example, not limitation.
其中,磁流变解耦模结构250包括磁流变解耦膜251以及填充于磁流变解耦膜251内的磁流变液体252。如此,仅仅在磁流变解耦膜251内使用磁流变液体,相对于在磁流变悬置的腔体内全部填充磁流变液体的技术方案,可以有效降低磁流变液体的使用成本,从而节约减振装置的制造成本。The magnetorheological decoupling mode structure 250 includes a magnetorheological decoupling film 251 and a magnetorheological liquid 252 filled in the magnetorheological decoupling film 251 . In this way, only using the magnetorheological fluid in the magnetorheological decoupling film 251 can effectively reduce the cost of using the magnetorheological fluid compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological fluid. This saves the manufacturing cost of the vibration damping device.
需要说明的是,磁流变解耦膜结构250的阻尼和刚度随电磁线圈500形成的磁场强度变化,使得磁流变解耦膜结构可以吸收减振装置受到的部分振动激励能量,进一步提升减振装置的减振效果,进而可以进一步减少减振装置在受到高频振动能量冲击时的动态硬化现象。例如,在图1D中,由于增压板210的上表面设置了第三通孔212,在减振装置受到振动激励时,橡胶主簧103产生变形,挤压第一腔体101内的第一液体,使得第一腔体101中的第一液体可以通过第三通孔212冲击磁流变解耦膜结构250。其中,第三通孔212在具体实施时可以是一个或多个通孔,图1D中第三通孔212仅仅是以四个通孔为例,并非限定。It should be noted that the damping and stiffness of the magnetorheological decoupling membrane structure 250 change with the intensity of the magnetic field formed by the electromagnetic coil 500, so that the magnetorheological decoupling membrane structure can absorb part of the vibration excitation energy received by the vibration damping device, further improving the damping effect. The vibration damping effect of the vibration device can further reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. For example, in FIG. 1D , since the third through hole 212 is provided on the upper surface of the boosting plate 210 , when the vibration damping device is excited by vibration, the rubber main spring 103 deforms, squeezing the first spring in the first cavity 101 . liquid, so that the first liquid in the first cavity 101 can impact the magnetorheological decoupling membrane structure 250 through the third through hole 212 . The third through hole 212 may be one or more through holes during specific implementation. The third through holes 212 in FIG. 1D are only four through holes as an example and are not limiting.
请参见图1E,在一些可能的实施方式中,减振装置还可以包括传感器600和电流控制模块700(图中未示出);电流控制模块700分别与传感器600和电磁线圈500连接;由于传感器600设置于连接杆300的第二端302,传感器600可以检测连接杆300的振动信号;电流控制模块700可以根据传感器600检测到的振动信号调整电磁线圈500的电流大小。如此,减振装置可以感知其受到的振动激励对应的振动信号,并且减振装置中的电流控制模块700可以基于该振动信号,对电磁线圈500的电流大小进行调整,进而调整电磁线圈500形成的磁场强度,而减振装置中的磁流变材料(例如,磁流变弹性体400或磁流变解耦膜结构250)的刚度和阻尼可以随该磁场强度变化,从而实现减振装置的刚度和阻尼的动态调整,充分发挥磁流变材料的快速响应和减振特性。其中,传感器600例如可以是加速度传感器、力传感器、压敏电阻传感器、或压电陶瓷传感器中的任一种。Referring to Figure 1E, in some possible implementations, the vibration reduction device may also include a sensor 600 and a current control module 700 (not shown in the figure); the current control module 700 is connected to the sensor 600 and the electromagnetic coil 500 respectively; since the sensor 600 is disposed at the second end 302 of the connecting rod 300. The sensor 600 can detect the vibration signal of the connecting rod 300; the current control module 700 can adjust the current of the electromagnetic coil 500 according to the vibration signal detected by the sensor 600. In this way, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module 700 in the vibration reduction device can adjust the current size of the electromagnetic coil 500 based on the vibration signal, and then adjust the current formed by the electromagnetic coil 500 The strength of the magnetic field, and the stiffness and damping of the magnetorheological material (for example, the magnetorheological elastomer 400 or the magnetorheological decoupling membrane structure 250) in the damping device can change with the strength of the magnetic field, thereby achieving the stiffness of the damping device. and dynamic adjustment of damping to give full play to the rapid response and vibration reduction characteristics of magnetorheological materials. The sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
实施例2,第二种减振装置。 Embodiment 2, the second vibration damping device.
请参见图2A,图2A为本申请提供的第二种减振装置的结构示意图之一,该减振装置 包括壳体100、惯性通道结构200、连接杆300和电磁线圈500;其中,壳体100具有容纳腔,惯性通道结构200设置于该容纳腔内并将容纳腔分为第一腔体101和第二腔体102,惯性通道结构形成连通第一腔体101和第二腔体102的惯性通道240。其中,第一腔体101和第二腔体102内填充有第一液体,第一液体可以在惯性通道240内流动。Please refer to Figure 2A. Figure 2A is one of the structural schematic diagrams of the second vibration reduction device provided by this application. The vibration reduction device includes a housing 100, an inertial channel structure 200, a connecting rod 300 and an electromagnetic coil 500; wherein, the housing 100 has an accommodation cavity, and an inertial channel structure 200 is disposed in the accommodation cavity and divides the accommodation cavity into a first cavity 101 and a second cavity 102. The inertial channel structure forms a connection between the first cavity 101 and the second cavity 102. Inertial channel 240. The first cavity 101 and the second cavity 102 are filled with a first liquid, and the first liquid can flow in the inertial channel 240 .
连接杆300的第一端301位于壳体100外,连接杆300的第二端302位于第一腔体101内。其中,惯性通道结构200设置有磁流变解耦膜结构250,磁流变解耦膜结构250的阻尼和刚度随电磁线圈500形成的磁场强度变化。其中,磁流变解耦膜结构250的阻尼和刚度随电磁线圈500形成的磁场强度变化,使得磁流变解耦膜结构250可以吸收减振装置受到的振动激励能量,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置的动态硬化现象。The first end 301 of the connecting rod 300 is located outside the housing 100 , and the second end 302 of the connecting rod 300 is located within the first cavity 101 . The inertial channel structure 200 is provided with a magnetorheological decoupling membrane structure 250 . The damping and stiffness of the magnetorheological decoupling membrane structure 250 change with the intensity of the magnetic field formed by the electromagnetic coil 500 . Among them, the damping and stiffness of the magnetorheological decoupling membrane structure 250 change with the intensity of the magnetic field formed by the electromagnetic coil 500, so that the magnetorheological decoupling membrane structure 250 can absorb the vibration excitation energy received by the vibration damping device, effectively increasing the size of the damping device. The adjustable damping force range effectively improves the damping effect of the damping device and reduces the dynamic hardening of the damping device.
需要说明的是,惯性通道的入口241为第一腔体101内的第一液体流入惯性通道的第一流通截面,惯性通道的出口242为第二腔体102内的第一液体流入惯性通道的第二流通截面。因此,第一腔体101可以称作第一液室,第二腔体102可以称作第二液室。It should be noted that the inlet 241 of the inertial channel is the first flow cross section through which the first liquid in the first cavity 101 flows into the inertial channel, and the outlet 242 of the inertial channel is the through which the first liquid in the second cavity 102 flows into the inertial channel. Second flow section. Therefore, the first cavity 101 can be called a first liquid chamber, and the second cavity 102 can be called a second liquid chamber.
在具体实施时,上述第一液体可以为粘性流体。其中,磁流变解耦模结构250包括磁流变解耦膜251以及填充于磁流变解耦膜251内的磁流变液体252。如此,仅仅在磁流变解耦膜251内使用磁流变液体,相对于在磁流变悬置的腔体内全部填充磁流变液体的技术方案,可以有效降低磁流变液体的使用成本,从而节约减振装置的制造成本。In specific implementation, the first liquid may be a viscous fluid. The magnetorheological decoupling mode structure 250 includes a magnetorheological decoupling film 251 and a magnetorheological liquid 252 filled in the magnetorheological decoupling film 251 . In this way, only using the magnetorheological fluid in the magnetorheological decoupling film 251 can effectively reduce the cost of using the magnetorheological fluid compared to the technical solution of filling the entire cavity of the magnetorheological suspension with magnetorheological fluid. This saves the manufacturing cost of the vibration damping device.
请继续参见图2A,壳体100包括橡胶主簧103、上壳体104、下壳体105、和弹性底碗106;其中,上壳体104具有开口,橡胶主簧103设置于开口处,上壳体104、橡胶主簧103和惯性通道结构200之间形成第一腔体101;下壳体105、弹性底碗106、和惯性通道结构200之间形成第二腔体102。以及,上述减振装置还包括加强块800,该加强块800与连接杆300固定连接。Please continue to refer to Figure 2A. The housing 100 includes a rubber main spring 103, an upper housing 104, a lower housing 105, and an elastic bottom bowl 106. The upper housing 104 has an opening, and the rubber main spring 103 is disposed at the opening. The first cavity 101 is formed between the housing 104, the rubber main spring 103 and the inertial channel structure 200; the second cavity 102 is formed between the lower housing 105, the elastic bottom bowl 106 and the inertial channel structure 200. Moreover, the above-mentioned vibration damping device also includes a reinforcing block 800, which is fixedly connected to the connecting rod 300.
在一些可能的实施方式中,上述壳体100的上表面设置有橡胶主簧103;其中,连接杆300的第一端301作用于橡胶主簧103,橡胶主簧103产生变形,挤压第一腔体101内的第一液体,使得第一腔体101内的第一液体冲击磁流变解耦膜结构250。由于磁流变解耦膜结构的阻尼和刚度随电磁线圈500形成的磁场强度变化,使得磁流变解耦膜结构可以吸收减振装置受到的振动激励能量,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。以及,橡胶主簧103产生变形,挤压第一腔体101内的第一液体,使得第一腔体101内的第一液体从惯性通道流入第二腔体102内。In some possible implementations, the upper surface of the housing 100 is provided with a rubber main spring 103; wherein the first end 301 of the connecting rod 300 acts on the rubber main spring 103, and the rubber main spring 103 deforms and squeezes the first The first liquid in the cavity 101 causes the first liquid in the first cavity 101 to impact the magnetorheological decoupling membrane structure 250 . Since the damping and stiffness of the magnetorheological decoupling membrane structure change with the intensity of the magnetic field formed by the electromagnetic coil 500, the magnetorheological decoupling membrane structure can absorb the vibration excitation energy received by the vibration damping device, effectively increasing the damping force of the vibration damping device. The adjustable range effectively improves the damping effect of the damping device and reduces the dynamic hardening of the damping device when it is impacted by high-frequency vibration energy. And, the rubber main spring 103 deforms and squeezes the first liquid in the first cavity 101, so that the first liquid in the first cavity 101 flows from the inertial channel into the second cavity 102.
在一些可能的实施方式中,惯性通道结构设置有一个或多个孔,进而磁流变解耦膜结构设置于一个或多个孔中。示例性的,请继续参见图2A,惯性通道结构200包括通道上板220和通道下板230,通道上板220中设置了第五通孔224,通道下板230中设置了第六通孔234,第五通孔224和第六通孔234相互配合夹持磁流变解耦膜结构250。In some possible implementations, the inertial channel structure is provided with one or more holes, and the magnetorheological decoupling membrane structure is disposed in the one or more holes. For example, please continue to refer to FIG. 2A. The inertial channel structure 200 includes an upper channel plate 220 and a lower channel plate 230. The upper channel plate 220 is provided with a fifth through hole 224, and the lower channel plate 230 is provided with a sixth through hole 234. , the fifth through hole 224 and the sixth through hole 234 cooperate with each other to clamp the magnetorheological decoupling film structure 250 .
在一些可能的实施方式中,连接杆300的第二端302还设置有线圈槽3021,减振装置还包括橡胶圈401,橡胶圈401环绕线圈槽3021设置,可以避免连接杆300与惯性通道结构200刚性接触。In some possible implementations, the second end 302 of the connecting rod 300 is also provided with a coil slot 3021, and the vibration damping device also includes a rubber ring 401. The rubber ring 401 is arranged around the coil slot 3021, which can avoid the connecting rod 300 and the inertial channel structure. 200 rigid contact.
请参见图2B,图2B为本申请提供的第二种减振装置的结构示意图之二。在另一些可能的实施方式中,减振装置还包括第一弹性件400,第一弹性件400固定于连接杆300的 第二端302。且第一弹性件400可以为磁流变弹性体,在减振装置受到振动激励时,连接杆300的第二端302可以作用于第一弹性件400,第一弹性件400的阻尼和刚度随电磁线圈形成的磁场强度变化,使得第一弹性件400可以吸收减振装置受到的部分振动激励,进一步增大减振装置的阻尼力可调范围,进而进一步提升减振装置的减振效果。Please refer to Figure 2B. Figure 2B is the second structural schematic diagram of the second vibration damping device provided by this application. In other possible implementations, the shock absorbing device further includes a first elastic member 400, and the first elastic member 400 is fixed to the second end 302 of the connecting rod 300. And the first elastic member 400 can be a magnetorheological elastomer. When the vibration damping device is excited by vibration, the second end 302 of the connecting rod 300 can act on the first elastic member 400, and the damping and stiffness of the first elastic member 400 change accordingly. The change in the intensity of the magnetic field formed by the electromagnetic coil allows the first elastic member 400 to absorb part of the vibration excitation received by the vibration damping device, further increasing the adjustable range of the damping force of the vibration damping device, thereby further improving the vibration damping effect of the vibration damping device.
在一些可能的实施方式中,连接杆300的第二端302还设置有线圈槽3021和环形凹槽3022,线圈槽3021内设有电磁线圈500,电磁线圈500的外侧设有第一密封环501来实现对电磁线圈的密封;第一弹性件400设置于环形凹槽3022内,且第一弹性件400的上侧和圆周侧与环形凹槽3022的内壁接触,第一弹性件400的下侧与惯性通道结构200接触。可选的,连接杆300的第二端302设置有扰流板3023,扰流板3023可以加速第一腔体101内的第一液体流动。In some possible implementations, the second end 302 of the connecting rod 300 is also provided with a coil groove 3021 and an annular groove 3022. The coil groove 3021 is provided with the electromagnetic coil 500, and the first sealing ring 501 is provided outside the electromagnetic coil 500. To achieve sealing of the electromagnetic coil; the first elastic member 400 is disposed in the annular groove 3022, and the upper side and circumferential side of the first elastic member 400 are in contact with the inner wall of the annular groove 3022, and the lower side of the first elastic member 400 Contact with the inertial channel structure 200. Optionally, the second end 302 of the connecting rod 300 is provided with a spoiler 3023, which can accelerate the flow of the first liquid in the first cavity 101.
请参见图2C,图2C为本申请提供的第二种减振装置的结构示意图之三。在一些可能的实施方式中,减振装置还可以包括传感器600和电流控制模块700(图中未示出);电流控制模块700分别与传感器600和电磁线圈500连接;由于传感器600设置于连接杆300的第二端302,传感器600可以检测连接杆300的振动信号;电流控制模块700可以根据传感器600检测到的振动信号调整电磁线圈500的电流大小。如此,减振装置可以感知其受到的振动激励对应的振动信号,并且减振装置中的电流控制模块700可以基于该振动信号,对电磁线圈500的电流大小进行调整,进而调整电磁线圈500形成的磁场强度,而减振装置中的磁流变材料(例如,磁流变弹性体或磁流变解耦膜结构250)的刚度和阻尼可以随该磁场强度变化,从而实现减振装置的刚度和阻尼的动态调整,充分发挥磁流变材料的快速响应和减振特性。其中,传感器600例如可以是加速度传感器、力传感器、压敏电阻传感器、或压电陶瓷传感器中的任一种。Please refer to Figure 2C. Figure 2C is the third structural schematic diagram of the second vibration damping device provided by this application. In some possible implementations, the vibration damping device may also include a sensor 600 and a current control module 700 (not shown in the figure); the current control module 700 is connected to the sensor 600 and the electromagnetic coil 500 respectively; since the sensor 600 is disposed on the connecting rod At the second end 302 of 300, the sensor 600 can detect the vibration signal of the connecting rod 300; the current control module 700 can adjust the current of the electromagnetic coil 500 according to the vibration signal detected by the sensor 600. In this way, the vibration reduction device can sense the vibration signal corresponding to the vibration excitation it receives, and the current control module 700 in the vibration reduction device can adjust the current size of the electromagnetic coil 500 based on the vibration signal, and then adjust the current formed by the electromagnetic coil 500 The strength of the magnetic field, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling membrane structure 250) in the damping device can change with the strength of the magnetic field, thereby achieving the stiffness and damping of the damping device. Dynamic adjustment of damping gives full play to the rapid response and vibration reduction characteristics of magnetorheological materials. The sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
可以理解的是,第二种减振装置可能的其他实施方式,请参见第一种减振装置对应的相关描述,这里不作赘述。It can be understood that for other possible implementations of the second vibration damping device, please refer to the corresponding description of the first vibration damping device, which will not be described again here.
实施例3,第三种减振装置。Embodiment 3, the third vibration damping device.
请参见图3,图3为本申请实施例提供的第三种减振装置的结构示意图,该减振装置包括壳体100、惯性通道结构200、连接杆300、第一弹性体400和电磁线圈500;其中,壳体100具有容纳腔,惯性通道结构200设置于该容纳腔内并将容纳腔分为第一腔体101和第二腔体102,惯性通道结构200形成连通第一腔体101和第二腔体102的惯性通道240。连接杆300的第一端301位于壳体100外,连接杆300的第二端302位于第一腔体101内。连接杆300的第二端302与第一弹性体400接触连接;其中,连接杆300的第二端302,作用于惯性通道结构上使得惯性通道的入口241的面积变小;其中,惯性通道结构设置有磁流变解耦膜结构250,第一弹性体400为磁流变液体;磁流变解耦膜结构250和第一弹性体400的阻尼和刚度随电磁线圈500形成的磁场强度变化。Please refer to Figure 3. Figure 3 is a schematic structural diagram of a third vibration damping device provided by an embodiment of the present application. The vibration damping device includes a housing 100, an inertia channel structure 200, a connecting rod 300, a first elastic body 400 and an electromagnetic coil. 500; wherein, the housing 100 has an accommodating cavity, and the inertial channel structure 200 is disposed in the accommodating cavity and divides the accommodating cavity into a first cavity 101 and a second cavity 102, and the inertial channel structure 200 forms a connection with the first cavity 101. and the inertial channel 240 of the second cavity 102 . The first end 301 of the connecting rod 300 is located outside the housing 100 , and the second end 302 of the connecting rod 300 is located within the first cavity 101 . The second end 302 of the connecting rod 300 is in contact with the first elastic body 400; the second end 302 of the connecting rod 300 acts on the inertial channel structure to reduce the area of the inlet 241 of the inertial channel; where the inertial channel structure A magnetorheological decoupling membrane structure 250 is provided, and the first elastomer 400 is a magnetorheological liquid; the damping and stiffness of the magnetorheological decoupling membrane structure 250 and the first elastomer 400 change with the intensity of the magnetic field formed by the electromagnetic coil 500 .
其中,第一腔体101和第二腔体102内填充有第一液体,第一液体可以在惯性通道240内来回流动,惯性通道的入口241为第一腔体101内的第一液体流入惯性通道的第一流通截面,惯性通道的出口242为第二腔体102内的第一液体流入惯性通道的第二流通截面。因此,在一些可能的实施例中,第一腔体101可以称作第一液室,第二腔体102可以称作第二液室。在具体实施时,上述第一液体可以为粘性流体或磁流变液体。其中,磁流变解耦模结构250包括磁流变解耦膜251以及填充于磁流变解耦膜251内的磁流变液体252。 如此,在第一腔体101和第二腔体102内填充粘性流体,仅仅在磁流变解耦膜251内使用磁流变液体,相对于磁流变悬置在其腔体内填充磁流变液体的技术方案,可以有效降低减振装置的成本。The first cavity 101 and the second cavity 102 are filled with the first liquid, and the first liquid can flow back and forth in the inertial channel 240. The inlet 241 of the inertial channel is where the first liquid in the first cavity 101 flows into the inertial channel. The first flow section of the channel and the outlet 242 of the inertial channel are the second flow section through which the first liquid in the second cavity 102 flows into the inertial channel. Therefore, in some possible embodiments, the first cavity 101 may be called a first liquid chamber, and the second cavity 102 may be called a second liquid chamber. In specific implementation, the first liquid may be a viscous fluid or a magnetorheological liquid. The magnetorheological decoupling mode structure 250 includes a magnetorheological decoupling film 251 and a magnetorheological liquid 252 filled in the magnetorheological decoupling film 251 . In this way, the first cavity 101 and the second cavity 102 are filled with viscous fluid, only the magnetorheological liquid is used in the magnetorheological decoupling film 251, and the magnetorheological fluid is filled in the cavity relative to the magnetorheological suspension. The liquid technical solution can effectively reduce the cost of the vibration damping device.
其中,传感器600例如可以是加速度传感器、力传感器、压敏电阻传感器、或压电陶瓷传感器中的任一种。The sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
请继续参见图3,壳体100包括橡胶主簧103、上壳体104、下壳体105、和弹性底碗106;其中,上壳体104具有开口,橡胶主簧103设置于开口处,上壳体104、橡胶主簧103和惯性通道结构200之间形成第一腔体101;下壳体105、弹性底碗106、和惯性通道结构200之间形成第二腔体102。以及,上述减振装置还包括加强块800,该加强块800与连接杆300固定连接。Please continue to refer to Figure 3. The housing 100 includes a rubber main spring 103, an upper housing 104, a lower housing 105, and an elastic bottom bowl 106. The upper housing 104 has an opening, and the rubber main spring 103 is disposed at the opening. The first cavity 101 is formed between the housing 104, the rubber main spring 103 and the inertial channel structure 200; the second cavity 102 is formed between the lower housing 105, the elastic bottom bowl 106 and the inertial channel structure 200. Moreover, the above-mentioned vibration damping device also includes a reinforcing block 800, which is fixedly connected to the connecting rod 300.
实施例3提供的第三种减振装置,在受到不同类型的振动激励时,第三种减振装置中的惯性通道的入口的面积大小可以自适应调整,有效增大减振装置的阻尼力可调范围,有效提升减振装置的减振效果,以及减少减振装置在受到高频振动能量冲击时的动态硬化现象。并且,惯性通道结构设置有磁流变解耦膜结构,磁流变解耦膜结构的阻尼和刚度随电磁线圈形成的磁场强度变化,使得磁流变解耦膜结构可以吸收减振装置受到的部分振动激励能量,进一步提升减振装置的减振效果,进而可以进一步减少减振装置在受到高频振动能量冲击时的动态硬化现象。以及,在减振装置受到振动激励时,磁流变弹性体可以将减振装置受到的部分振动激励传递至惯性通道结构,且磁流变弹性体的阻尼和刚度随电磁线圈形成的磁场强度变化,使得磁流变弹性体可以吸收减振装置受到的部分振动激励,进一步增大减振装置的阻尼力可调范围,进而进一步提升减振装置的减振效果。In the third vibration reduction device provided in Embodiment 3, when being excited by different types of vibrations, the area size of the inlet of the inertia channel in the third vibration reduction device can be adaptively adjusted, effectively increasing the damping force of the vibration reduction device. The adjustable range effectively improves the damping effect of the damping device and reduces the dynamic hardening of the damping device when it is impacted by high-frequency vibration energy. Moreover, the inertial channel structure is provided with a magnetorheological decoupling film structure. The damping and stiffness of the magnetorheological decoupling film structure change with the intensity of the magnetic field formed by the electromagnetic coil, so that the magnetorheological decoupling film structure can absorb the vibration of the vibration damping device. Part of the vibration excitation energy can further improve the vibration damping effect of the vibration damping device, which can further reduce the dynamic hardening phenomenon of the vibration damping device when it is impacted by high-frequency vibration energy. And, when the vibration damping device is excited by vibration, the magnetorheological elastomer can transfer part of the vibration excitation of the damping device to the inertial channel structure, and the damping and stiffness of the magnetorheological elastomer change with the intensity of the magnetic field formed by the electromagnetic coil. , so that the magnetorheological elastomer can absorb part of the vibration excitation received by the damping device, further increasing the adjustable range of the damping force of the damping device, and further improving the damping effect of the damping device.
可以理解的是,第三种减振装置可能的其他实施方式,请参见第一种减振装置和第二种减振装置对应的相关描述,这里不作赘述。It can be understood that for other possible implementations of the third vibration damping device, please refer to the corresponding descriptions of the first vibration damping device and the second vibration damping device, which will not be described again here.
基于相同的技术构思,本申请实施例还提供了一种控制方法,该方法可以应用于上述第一种装置、第二种装置、或第三种装置中的任一种。请参见图4,该方法包括:Based on the same technical concept, embodiments of the present application also provide a control method, which can be applied to any of the above-mentioned first device, second device, or third device. See Figure 4, the method includes:
S401、传感器600监测连接杆300的振动信号。S401. The sensor 600 monitors the vibration signal of the connecting rod 300.
其中,传感器600例如可以是加速度传感器、力传感器、压敏电阻传感器、或压电陶瓷传感器中的任一种。The sensor 600 may be, for example, any one of an acceleration sensor, a force sensor, a piezoresistive sensor, or a piezoelectric ceramic sensor.
S402、电流控制模块700对振动信号进行处理,得到控制信号。S402. The current control module 700 processes the vibration signal to obtain a control signal.
S403、电流控制模块700基于控制信号,调整电磁线圈500的电流大小。S403. The current control module 700 adjusts the current of the electromagnetic coil 500 based on the control signal.
例如,振动信号为高频大信号时,高频大信号对应的控制信号,可以用于将电磁线圈500的电流调大。又例如,振动信号为低频小信号时,低频小信号对应的控制信号,可以用于将电磁线圈500的电流调小或调为零。For example, when the vibration signal is a high-frequency large signal, the control signal corresponding to the high-frequency large signal can be used to increase the current of the electromagnetic coil 500 . For another example, when the vibration signal is a low-frequency small signal, the control signal corresponding to the low-frequency small signal can be used to adjust the current of the electromagnetic coil 500 to a small value or to zero.
在图4所示的方法中,传感器可以感知减振装置受到的振动激励对应的振动信号,并且减振装置中的电流控制模块可以基于该振动信号,对电磁线圈的电流大小进行调整,进而调整电磁线圈形成的磁场强度,而减振装置中的磁流变材料(例如,磁流变弹性体或磁流变解耦膜)的刚度和阻尼可以随该磁场强度变化,从而实现减振装置的刚度和阻尼的动态调整,充分发挥磁流变材料的快速响应和减振特性。In the method shown in Figure 4, the sensor can sense the vibration signal corresponding to the vibration excitation received by the vibration reduction device, and the current control module in the vibration reduction device can adjust the current size of the electromagnetic coil based on the vibration signal, and then adjust The strength of the magnetic field formed by the electromagnetic coil, and the stiffness and damping of the magnetorheological material (for example, magnetorheological elastomer or magnetorheological decoupling film) in the shock absorber device can change with the strength of the magnetic field, thereby achieving the desired performance of the shock absorber device. Dynamic adjustment of stiffness and damping gives full play to the rapid response and vibration reduction characteristics of magnetorheological materials.
需要说明的是,本申请实施例提供的减振装置可以应用在任何需要减振处理的应用场景中。例如,可以应用在车辆的悬架***中,减轻车辆在行驶过程中的振动。又例如,可 以应用在车辆的悬置中,用以减轻汽车动力总成(例如,发动机)的振动。又例如,可以应用在车载电池中,用以防止电池受挤压而变形。又例如,可以应用在洗衣机中,用以减轻洗衣机的振动。It should be noted that the vibration reduction device provided by the embodiment of the present application can be applied in any application scenario that requires vibration reduction processing. For example, it can be used in vehicle suspension systems to reduce vehicle vibrations during driving. As another example, it can be used in vehicle suspensions to reduce vibrations in the automotive powertrain (e.g., engine). For another example, it can be used in vehicle batteries to prevent the battery from being squeezed and deformed. For another example, it can be used in a washing machine to reduce the vibration of the washing machine.
相应的,本申请实施例还提供了一种悬架***,可以包括如实施例1、实施例2、或实施例3中任一项所述的减振装置。Correspondingly, embodiments of the present application also provide a suspension system, which may include the vibration damping device described in any one of Embodiment 1, Embodiment 2, or Embodiment 3.
本申请实施例还提供了一种悬置,可以包括如实施例1、实施例2、或实施例3中任一项所述的减振装置。The embodiment of the present application also provides a suspension, which may include the vibration damping device as described in any one of Embodiment 1, Embodiment 2, or Embodiment 3.
本申请实施例还提供了一种电池,可以包括如实施例1、实施例2、或实施例3中任一项所述的减振装置。The embodiment of the present application also provides a battery, which may include the vibration reduction device as described in any one of Embodiment 1, Embodiment 2, or Embodiment 3.
本申请实施例还提供了一种车辆,该车辆包括但不限于为新能源汽车、智能汽车等类型的汽车。车辆可包括车身、车轮以及前述实施例中的悬架***和悬置。Embodiments of the present application also provide a vehicle, which includes but is not limited to new energy vehicles, smart vehicles, and other types of vehicles. The vehicle may include a body, wheels, and the suspension system and mounts of the previous embodiments.
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.
Claims (38)
- 一种减振装置,其特征在于,包括:A vibration reduction device, characterized in that it includes:壳体,具有容纳腔;A shell with a receiving cavity;惯性通道结构,设置于所述容纳腔内并将所述容纳腔分为第一腔体和第二腔体,所述惯性通道结构形成连通所述第一腔体和所述第二腔体的惯性通道;其中,所述第一腔体和所述第二腔体内填充有第一液体,所述第一液体在所述惯性通道内流动;An inertial channel structure is provided in the accommodation cavity and divides the accommodation cavity into a first cavity and a second cavity. The inertial channel structure forms a channel connecting the first cavity and the second cavity. Inertial channel; wherein the first cavity and the second cavity are filled with a first liquid, and the first liquid flows in the inertial channel;连接杆,所述连接杆的一端位于所述壳体外,另一端位于所述第一腔体内;其中,所述连接杆位于所述第一腔体内的一端,作用于所述惯性通道结构上使得所述惯性通道的入口面积变小。Connecting rod, one end of the connecting rod is located outside the housing, and the other end is located in the first cavity; wherein, one end of the connecting rod is located in the first cavity, acting on the inertial channel structure such that The entrance area of the inertial channel becomes smaller.
- 如权利要求1所述的装置,其特征在于,所述第一液体为粘性流体。The device of claim 1, wherein the first liquid is a viscous fluid.
- 如权利要求1或2所述的装置,其特征在于,所述装置还包括第一弹性件,所述第一弹性件固定于所述连接杆位于所述第一腔体内的一端;The device according to claim 1 or 2, characterized in that the device further includes a first elastic member, the first elastic member is fixed to one end of the connecting rod located in the first cavity;其中,所述连接杆位于所述第一腔体内的一端,作用于所述第一弹性件,所述第一弹性件与所述惯性通道结构朝向所述第一腔体的上表面接触,使得所述惯性通道的入口面积变小。Wherein, one end of the connecting rod located in the first cavity acts on the first elastic member, and the first elastic member contacts the upper surface of the inertia channel structure toward the first cavity, so that The entrance area of the inertial channel becomes smaller.
- 如权利要求3所述的装置,其特征在于,所述装置还包括电磁线圈;The device of claim 3, further comprising an electromagnetic coil;其中,所述第一弹性件为磁流变弹性体,所述第一弹性件的阻尼和刚度随所述电磁线圈形成的磁场强度变化。Wherein, the first elastic member is a magnetorheological elastomer, and the damping and stiffness of the first elastic member change with the intensity of the magnetic field formed by the electromagnetic coil.
- 如权利要求3或4所述的装置,其特征在于,所述连接杆位于所述第一腔体内的一端作用于所述第一弹性件的力消失,所述第一弹性件与所述惯性通道结构朝向所述第一腔体的上表面不接触,使得所述惯性通道的入口的面积变大。The device according to claim 3 or 4, characterized in that the force exerted on the first elastic member by one end of the connecting rod located in the first cavity disappears, and the first elastic member and the inertia The upper surface of the channel structure toward the first cavity does not contact, so that the area of the inlet of the inertial channel becomes larger.
- 如权利要求1或2所述的装置,其特征在于,所述壳体的上表面设置有橡胶主簧;The device according to claim 1 or 2, characterized in that a rubber main spring is provided on the upper surface of the housing;其中,所述连接杆位于所述壳体外的一端,作用于所述橡胶主簧,所述橡胶主簧产生变形,挤压所述第一腔体内的粘性流体,所述第一腔体内的粘性流体冲击所述惯性通道结构朝向所述第一腔体的上表面,使得所述惯性通道的入口面积变小。Wherein, the connecting rod is located at one end outside the housing and acts on the rubber main spring. The rubber main spring deforms and squeezes the viscous fluid in the first cavity. The viscous fluid in the first cavity The fluid impacts the inertial channel structure toward the upper surface of the first cavity, so that the inlet area of the inertial channel becomes smaller.
- 如权利要求6所述的装置,其特征在于,所述连接杆位于所述壳体外的一端作用于所述橡胶主簧的力消失,所述橡胶主簧产生的变形恢复,使得所述惯性通道的入口面积变大。The device according to claim 6, wherein the force exerted on the rubber main spring by one end of the connecting rod located outside the housing disappears, and the deformation produced by the rubber main spring recovers, so that the inertia channel The entrance area becomes larger.
- 如权利要求1-7任一项所述的装置,其特征在于,所述惯性通道结构包括增压板、通道上板和通道下板;所述通道上板和所述通道下板固定连接,所述增压板的侧面设置有连通所述第一腔体和所述惯性通道的第一通孔,所述通道下板中设置有第一凹槽;The device according to any one of claims 1 to 7, characterized in that the inertial channel structure includes a boosting plate, an upper channel plate and a lower channel plate; the upper channel plate and the lower channel plate are fixedly connected, A first through hole connecting the first cavity and the inertia channel is provided on the side of the booster plate, and a first groove is provided in the lower plate of the channel;所述增压板的上表面朝向所述第一腔体,所述增压板在所述第一腔体内的第一液体的冲击下,沿朝向所述第一凹槽的方向移动封堵于所述第一凹槽的开口处,以使所述第一通孔中未被所述第一凹槽遮挡的部分与所述通道上板配合形成所述惯性通道的入口。The upper surface of the boosting plate faces the first cavity. Under the impact of the first liquid in the first cavity, the boosting plate moves in a direction toward the first groove and blocks the first groove. The opening of the first groove is such that the portion of the first through hole that is not blocked by the first groove cooperates with the upper plate of the channel to form the inlet of the inertia channel.
- 如权利要求8所述的装置,其特征在于,所述第一凹槽内设置有第二弹性件和第二密封环,所述第二弹性件的一端与所述通道下板连接,所述第二弹性件的另一端通过所述第二密封环与所述增压板接触;其中,所述增压板沿朝向所述第一凹槽的方向移动,作用于所述第二弹性件,所述第二弹性件产生形变。The device of claim 8, wherein a second elastic member and a second sealing ring are provided in the first groove, and one end of the second elastic member is connected to the lower plate of the channel, and the The other end of the second elastic member contacts the boosting plate through the second sealing ring; wherein the boosting plate moves in the direction toward the first groove and acts on the second elastic part, The second elastic component deforms.
- 如权利要求1-7任一项所述的装置,其特征在于,所述惯性通道结构包括通道上板和通道下板;所述通道下板的侧面设置有连通所述第一腔体和所述惯性通道的第四通孔;The device according to any one of claims 1 to 7, characterized in that the inertial channel structure includes an upper channel plate and a lower channel plate; a side surface of the lower channel plate is provided to connect the first cavity and the The fourth through hole of the inertia channel;所述通道上板朝向所述第一腔体,所述通道上板在所述第一腔体内的第一液体的冲击下,沿朝向所述通道下板的方向移动封堵于所述第一通孔的开口处,以使所述第四通孔中未被所述通道下板遮挡的部分与所述通道下板形成所述惯性通道的入口。The upper plate of the channel faces the first cavity. Under the impact of the first liquid in the first cavity, the upper plate of the channel moves in the direction toward the lower plate of the channel and blocks the first cavity. The opening of the through hole, so that the portion of the fourth through hole that is not blocked by the channel lower plate and the channel lower plate form the entrance of the inertia channel.
- 如权利要求8-10任一项所述的装置,其特征在于,所述通道下板中设置有第二通孔,所述第二通孔中连通所述惯性通道和所述第二腔体的部分,形成所述惯性通道的出口。The device according to any one of claims 8 to 10, characterized in that a second through hole is provided in the lower plate of the channel, and the second through hole communicates with the inertial channel and the second cavity. part, forming the outlet of the inertial channel.
- 如权利要求4-11任一项所述的装置,其特征在于,所述惯性通道结构设置有磁流变解耦膜结构,所述磁流变解耦膜结构的阻尼和刚度随所述电磁线圈形成的磁场强度变化。The device according to any one of claims 4 to 11, wherein the inertial channel structure is provided with a magnetorheological decoupling membrane structure, and the damping and stiffness of the magnetorheological decoupling membrane structure vary with the electromagnetic The strength of the magnetic field formed by the coil changes.
- 如权利要求12所述的装置,其特征在于,所述磁流变解耦模结构包括磁流变解耦膜以及填充于所述磁流变解耦膜内的磁流变液体。The device of claim 12, wherein the magnetorheological decoupling mode structure includes a magnetorheological decoupling film and a magnetorheological liquid filled in the magnetorheological decoupling film.
- 如权利要求12或13所述的装置,其特征在于,所述增压板的上表面设置有第三通孔,所述第一腔体中的第一液体通过所述第三通孔冲击所述磁流变解耦膜结构。The device according to claim 12 or 13, wherein a third through hole is provided on the upper surface of the pressurizing plate, and the first liquid in the first cavity impacts the liquid through the third through hole. Described magnetorheologically decoupled membrane structure.
- 如权利要求4-14任一项所述的装置,其特征在于,所述装置还包括传感器和电流控制模块;The device according to any one of claims 4-14, characterized in that the device further includes a sensor and a current control module;所述电流控制模块分别与所述传感器和所述电磁线圈连接;The current control module is connected to the sensor and the electromagnetic coil respectively;所述传感器设置于所述连接杆位于所述第一腔体的一端,检测所述连接杆的振动信号;The sensor is arranged at one end of the connecting rod located at the first cavity to detect the vibration signal of the connecting rod;所述电流控制模块用于根据所述传感器检测到的振动信号,调整所述电磁线圈的电流大小。The current control module is used to adjust the current of the electromagnetic coil according to the vibration signal detected by the sensor.
- 如权利要求1-15任一项所述的装置,其特征在于,所述连接杆位于所述第一腔体的一端设置有扰流板。The device according to any one of claims 1 to 15, wherein the connecting rod is provided with a spoiler at one end of the first cavity.
- 一种减振装置,其特征在于,包括:A vibration reduction device, characterized in that it includes:壳体和电磁线圈,所述壳体具有容纳腔;A housing and an electromagnetic coil, the housing having a receiving cavity;惯性通道结构,设置于所述容纳腔内并将所述容纳腔分为第一腔体和第二腔体,所述惯性通道结构形成连通所述第一腔体和所述第二腔体的惯性通道;其中,所述第一腔体和所述第二腔体内填充有第一液体,所述第一液体在所述惯性通道内流动;An inertial channel structure is provided in the accommodation cavity and divides the accommodation cavity into a first cavity and a second cavity. The inertial channel structure forms a channel connecting the first cavity and the second cavity. Inertial channel; wherein the first cavity and the second cavity are filled with a first liquid, and the first liquid flows in the inertial channel;连接杆,所述连接杆的一端位于所述壳体外,另一端位于所述第一腔体内;A connecting rod, one end of the connecting rod is located outside the housing, and the other end is located within the first cavity;其中,所述惯性通道结构设置有磁流变解耦膜结构,所述磁流变解耦膜结构的阻尼和刚度随所述电磁线圈形成的磁场强度变化。Wherein, the inertial channel structure is provided with a magnetorheological decoupling film structure, and the damping and stiffness of the magnetorheological decoupling film structure change with the intensity of the magnetic field formed by the electromagnetic coil.
- 如权利要求17所述的装置,其特征在于,所述第一液体为粘性流体。The device of claim 17, wherein the first liquid is a viscous fluid.
- 如权利要求17或18所述的装置,其特征在于,所述磁流变解耦膜结构包括磁流变解耦膜以及填充于所述磁流变解耦膜内的磁流变液体。The device according to claim 17 or 18, wherein the magnetorheological decoupling film structure includes a magnetorheological decoupling film and a magnetorheological liquid filled in the magnetorheological decoupling film.
- 如权利要求17所述的装置,其特征在于,所述惯性通道结构设置有一个或多个通孔,所述磁流变解耦膜结构设置于所述一个或多个通孔中。The device of claim 17, wherein the inertial channel structure is provided with one or more through holes, and the magnetorheological decoupling membrane structure is disposed in the one or more through holes.
- 如权利要求17-20任一项所述的装置,其特征在于,所述连接杆位于所述第一腔体内的一端,作用于所述惯性通道结构上使得所述惯性通道的入口面积变小。The device according to any one of claims 17 to 20, characterized in that the connecting rod is located at one end of the first cavity and acts on the inertial channel structure to reduce the inlet area of the inertial channel. .
- 如权利要求21所述的装置,其特征在于,所述装置还包括第一弹性件,所述第一弹性件固定于所述连接杆位于所述第一腔体内的一端;The device according to claim 21, wherein the device further includes a first elastic member, the first elastic member is fixed to one end of the connecting rod located in the first cavity;其中,所述连接杆位于所述第一腔体内的一端,作用于所述第一弹性件,所述第一弹性件与所述惯性通道结构朝向所述第一腔体的上表面接触,使得所述惯性通道的入口面积变小。Wherein, one end of the connecting rod located in the first cavity acts on the first elastic member, and the first elastic member contacts the upper surface of the inertial channel structure toward the first cavity, so that The entrance area of the inertial channel becomes smaller.
- 如权利要求22所述的装置,其特征在于,所述第一弹性件为磁流变弹性体,所述 第一弹性件的阻尼和刚度随所述电磁线圈形成的磁场强度变化。The device of claim 22, wherein the first elastic member is a magnetorheological elastomer, and the damping and stiffness of the first elastic member change with the intensity of the magnetic field formed by the electromagnetic coil.
- 如权利要求22或23所述的装置,其特征在于,所述连接杆位于所述第一腔体内的一端作用于所述第一弹性件的力消失,所述第一弹性件与所述惯性通道结构朝向所述第一腔体的上表面不接触,使得所述惯性通道的入口的面积变大。The device of claim 22 or 23, wherein the force exerted on the first elastic member by one end of the connecting rod located in the first cavity disappears, and the first elastic member and the inertia The upper surface of the channel structure toward the first cavity does not contact, so that the area of the inlet of the inertial channel becomes larger.
- 如权利要求17-21任一项所述的装置,其特征在于,所述壳体的上表面设置有橡胶主簧;The device according to any one of claims 17-21, wherein a rubber main spring is provided on the upper surface of the housing;其中,所述连接杆位于所述壳体外的一端,作用于所述橡胶主簧,所述橡胶主簧产生变形,挤压所述第一腔体内的粘性流体,所述第一腔体内的粘性流体冲击所述惯性通道结构朝向所述第一腔体的上表面,使得所述惯性通道的入口面积变小。Wherein, the connecting rod is located at one end outside the housing and acts on the rubber main spring. The rubber main spring deforms and squeezes the viscous fluid in the first cavity. The viscous fluid in the first cavity The fluid impacts the inertial channel structure toward the upper surface of the first cavity, so that the inlet area of the inertial channel becomes smaller.
- 如权利要求25所述的装置,其特征在于,所述连接杆位于所述壳体外的一端作用于所述橡胶主簧的力消失,所述橡胶主簧产生的变形恢复,使得所述惯性通道的入口面积变大。The device according to claim 25, wherein the force exerted on the rubber main spring by one end of the connecting rod located outside the housing disappears, and the deformation produced by the rubber main spring recovers, so that the inertial channel The entrance area becomes larger.
- 如权利要求17-26任一项所述的装置,其特征在于,所述惯性通道结构包括增压板、通道上板和通道下板;所述通道上板和所述通道下板固定连接,所述增压板的侧面设置有连通所述第一腔体和所述惯性通道的第一通孔,所述通道下板中设置有第一凹槽;The device according to any one of claims 17 to 26, wherein the inertial channel structure includes a boosting plate, an upper channel plate and a lower channel plate; the upper channel plate and the lower channel plate are fixedly connected, A first through hole connecting the first cavity and the inertia channel is provided on the side of the booster plate, and a first groove is provided in the lower plate of the channel;所述增压板的上表面朝向所述第一腔体,所述增压板在所述第一腔体内的第一液体的冲击下,沿朝向所述第一凹槽的方向移动封堵于所述第一凹槽的开口处,以使所述第一通孔中未被所述第一凹槽遮挡的部分与所述通道上板配合形成所述惯性通道的入口。The upper surface of the boosting plate faces the first cavity. Under the impact of the first liquid in the first cavity, the boosting plate moves in a direction toward the first groove and blocks the first groove. The opening of the first groove is such that the portion of the first through hole that is not blocked by the first groove cooperates with the upper plate of the channel to form the inlet of the inertia channel.
- 如权利要求27所述的装置,其特征在于,所述第一凹槽内设置有第二弹性件和第二密封环,所述第二弹性件的一端与所述通道下板连接,所述第二弹性件的另一端通过所述第二密封环与所述增压板接触;其中,所述增压板沿朝向所述第一凹槽的方向移动,作用于所述第二弹性件,所述第二弹性件产生形变。The device of claim 27, wherein a second elastic member and a second sealing ring are provided in the first groove, and one end of the second elastic member is connected to the lower plate of the channel, and the The other end of the second elastic member contacts the boosting plate through the second sealing ring; wherein the boosting plate moves in the direction toward the first groove and acts on the second elastic part, The second elastic component deforms.
- 如权利要求17-26任一项所述的装置,其特征在于,所述惯性通道结构包括通道上板和通道下板;所述通道下板的侧面设置有连通所述第一腔体和所述惯性通道的第四通孔;The device according to any one of claims 17 to 26, characterized in that the inertial channel structure includes an upper channel plate and a lower channel plate; a side surface of the lower channel plate is provided to connect the first cavity and the The fourth through hole of the inertia channel;所述通道上板朝向所述第一腔体,所述通道上板在所述第一腔体内的第一液体的冲击下,沿朝向所述通道下板的方向移动封堵于所述第一通孔的开口处,以使所述第四通孔中未被所述通道下板遮挡的部分与所述通道下板形成所述惯性通道的入口。The upper plate of the channel faces the first cavity. Under the impact of the first liquid in the first cavity, the upper plate of the channel moves in the direction toward the lower plate of the channel and blocks the first cavity. The opening of the through hole, so that the portion of the fourth through hole that is not blocked by the channel lower plate and the channel lower plate form the entrance of the inertia channel.
- 如权利要求27-29任一项所述的装置,其特征在于,所述通道下板中设置有第二通孔,所述第二通孔中连通所述惯性通道和所述第二腔体的部分,形成所述惯性通道的出口。The device according to any one of claims 27 to 29, characterized in that a second through hole is provided in the lower plate of the channel, and the second through hole communicates with the inertial channel and the second cavity. part, forming the outlet of the inertial channel.
- 如权利要求27所述的装置,其特征在于,所述增压板的上表面设置有第三通孔,所述第一腔体中的第一液体通过所述第三通孔冲击所述磁流变解耦膜结构。The device of claim 27, wherein a third through hole is provided on the upper surface of the booster plate, and the first liquid in the first cavity impacts the magnetic field through the third through hole. Rheologically decoupled membrane structures.
- 如权利要求17-31任一项所述的装置,其特征在于,所述装置还包括传感器和电流控制模块;The device according to any one of claims 17-31, characterized in that the device further includes a sensor and a current control module;所述电流控制模块分别与所述传感器和所述电磁线圈连接;The current control module is connected to the sensor and the electromagnetic coil respectively;所述传感器设置于所述连接杆位于所述第一腔体的一端,检测所述连接杆的振动信号;The sensor is arranged at one end of the connecting rod located at the first cavity to detect the vibration signal of the connecting rod;所述电流控制模块用于根据所述传感器检测到的振动信号,调整所述电磁线圈的电流大小。The current control module is used to adjust the current of the electromagnetic coil according to the vibration signal detected by the sensor.
- 如权利要求17-32任一项所述的装置,其特征在于,所述连接杆位于所述第一腔体的一端设置有扰流板。The device according to any one of claims 17 to 32, wherein the connecting rod is provided with a spoiler at one end of the first cavity.
- 一种减振装置,其特征在于,包括:A vibration reduction device, characterized in that it includes:壳体和电磁线圈,具有容纳腔;The housing and the electromagnetic coil have a receiving cavity;惯性通道结构,设置于所述容纳腔内并将所述容纳腔分为第一腔体和第二腔体,所述惯性通道结构形成连通所述第一腔体和所述第二腔体的惯性通道;其中,所述第一腔体和所述第二腔体内填充有第一液体,所述第一液体在所述惯性通道内流动;An inertial channel structure is provided in the accommodation cavity and divides the accommodation cavity into a first cavity and a second cavity. The inertial channel structure forms a channel connecting the first cavity and the second cavity. Inertial channel; wherein the first cavity and the second cavity are filled with a first liquid, and the first liquid flows in the inertial channel;连接杆,所述连接杆的一端位于所述壳体外,另一端位于所述第一腔体内;其中,所述连接杆位于所述第一腔体内的一端,作用于所述惯性通道结构上使得所述惯性通道的入口面积变小;Connecting rod, one end of the connecting rod is located outside the housing, and the other end is located in the first cavity; wherein, one end of the connecting rod is located in the first cavity, acting on the inertial channel structure such that The entrance area of the inertial channel becomes smaller;磁流变弹性体,固定于所述连接杆位于所述第一腔体的一端;Magnetorheological elastomer, fixed to one end of the connecting rod located at the first cavity;其中,所述惯性通道结构设置有磁流变解耦膜结构,所述磁流变解耦膜结构和所述磁流变弹性体的阻尼和刚度随所述电磁线圈形成的磁场强度变化。Wherein, the inertial channel structure is provided with a magnetorheological decoupling film structure, and the damping and stiffness of the magnetorheological decoupling film structure and the magnetorheological elastomer change with the intensity of the magnetic field formed by the electromagnetic coil.
- 一种控制方法,其特征在于,应用于减振装置,所述减振装置包括壳体、连接杆、惯性通道结构、电磁线圈、传感器和电流控制模块;其中,所述电流控制模块与所述电磁线圈和所述传感器分别连接,所述连接杆的一端位于所述壳体外,所述连接杆的另一端位于所述壳体内,且与所述传感器连接;所述惯性通道结构设置有磁流变解耦膜结构,所述磁流变解耦膜结构的阻尼和刚度随所述电磁线圈形成的磁场强度变化;A control method, characterized in that it is applied to a vibration damping device, which includes a housing, a connecting rod, an inertial channel structure, an electromagnetic coil, a sensor and a current control module; wherein the current control module and the The electromagnetic coil is connected to the sensor respectively, one end of the connecting rod is located outside the housing, and the other end of the connecting rod is located inside the housing and is connected to the sensor; the inertial channel structure is provided with a magnetic flow Variable decoupling membrane structure, the damping and stiffness of the magnetorheological decoupling membrane structure change with the intensity of the magnetic field formed by the electromagnetic coil;所述方法包括:The methods include:通过所述传感器监测所述连接杆的振动信号;Monitor the vibration signal of the connecting rod through the sensor;通过所述电流控制模块对所述振动信号进行处理,得到控制信号,所述控制信号用于调整所述电磁线圈的电流大小;其中,所述电磁线圈形成的磁场强度随所述电磁线圈的电流大小变化。The vibration signal is processed by the current control module to obtain a control signal. The control signal is used to adjust the current size of the electromagnetic coil; wherein, the intensity of the magnetic field formed by the electromagnetic coil changes with the current of the electromagnetic coil. Size changes.
- 一种悬架***,其特征在于,包括如权利要求1-34任一项所述的减振装置。A suspension system, characterized by including the vibration damping device according to any one of claims 1-34.
- 一种悬置,其特征在于,包括如权利要求1-34任一项所述的减振装置。A suspension, characterized in that it includes the vibration damping device according to any one of claims 1-34.
- 一种车辆,其特征在于,包括如权利要求36所述的悬架***、和如权利要求37所述的悬置。A vehicle, characterized by comprising a suspension system according to claim 36 and a suspension according to claim 37.
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CN202280066811.4A CN118056082A (en) | 2022-07-27 | 2022-07-27 | Vibration damper and control method |
PCT/CN2022/108156 WO2024020832A1 (en) | 2022-07-27 | 2022-07-27 | Vibration damping device and control method |
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PCT/CN2022/108156 WO2024020832A1 (en) | 2022-07-27 | 2022-07-27 | Vibration damping device and control method |
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CN110701236A (en) * | 2019-10-23 | 2020-01-17 | 吉林大学 | Semi-active control engine mount of magnetorheological elastomer and control method thereof |
CN215950231U (en) * | 2021-08-12 | 2022-03-04 | 华侨大学 | Magnetorheological fluid suspension based on mixed mode of extrusion and variable flow passage area |
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2022
- 2022-07-27 CN CN202280066811.4A patent/CN118056082A/en active Pending
- 2022-07-27 WO PCT/CN2022/108156 patent/WO2024020832A1/en unknown
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US4981286A (en) * | 1989-02-01 | 1991-01-01 | Tokai Rubber Industries, Ltd. | Apparatus using a fluid whose viscosity varies with electric current applied thereto |
CN101251164A (en) * | 2008-04-17 | 2008-08-27 | 上海交通大学 | Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force |
CN103148158A (en) * | 2013-03-15 | 2013-06-12 | 重庆大学 | Magnetorheological hydraulic engine mount based on extrusion mode |
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CN215950231U (en) * | 2021-08-12 | 2022-03-04 | 华侨大学 | Magnetorheological fluid suspension based on mixed mode of extrusion and variable flow passage area |
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