CN112128286B - Vertical tuned mass ball screw type inertial capacitance eddy current damper - Google Patents
Vertical tuned mass ball screw type inertial capacitance eddy current damper Download PDFInfo
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- CN112128286B CN112128286B CN202010958689.4A CN202010958689A CN112128286B CN 112128286 B CN112128286 B CN 112128286B CN 202010958689 A CN202010958689 A CN 202010958689A CN 112128286 B CN112128286 B CN 112128286B
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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
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
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Abstract
The invention provides a vertical tuned mass ball screw type inerter-capacitor eddy current damper which comprises an outer frame, a guide rod, a support frame, a mass block, a spring, a permanent magnet, a conductor plate and an iron plate, wherein the guide rod, the support frame, the mass block, the spring, the permanent magnet, the conductor plate and the iron plate are vertically arranged; the damper further comprises a ball screw, a nut, a flywheel and a thrust bearing which are vertically arranged. When the vibration energy of the controlled structure is transmitted to the damper, the mass block is caused to vibrate up and down, the flywheel is driven to rotate at a high speed through the ball screw, and the conductor plate cuts the magnetic induction lines of the permanent magnet to form an eddy current damping effect; and the back iron can reduce magnetic leakage and improve damping energy consumption efficiency. In the invention, the gap between the permanent magnet and the conductor plate is kept unchanged in the motion process of the mass block, so that the distance between the permanent magnet and the conductor plate can be set to be very small, and great damping force can be generated; according to the invention, the mass block moves linearly, the damping force has no torque on the mass block, the pressure between the mass block and the guide rod cannot be increased, and the movement is smooth.
Description
Technical Field
The invention belongs to the technical field of structural vibration reduction, and particularly relates to a vertical tuned mass ball screw type inerter-capacitor eddy current damper.
Background
The tuned mass damper is widely applied to the vibration reduction field of engineering structures such as bridges and high-rise buildings, and proved by theory and practice, the tuned mass damper has a good effect on controlling structural vibration, but the traditional vertical tuned mass damper has two problems, namely the durability problem and the spring static elongation problem. In the face of the rapidly developing demands of society, it is necessary to solve the above problems of tuned mass dampers, and to optimize and improve them.
The eddy current damping technology has the characteristics of no contact, good controllability and the like, can solve the problem of durability, and has proved to have good application prospect in the technical field of structural vibration reduction. The inertial container can generate an inertial mass far larger than a self physical mass through the conversion of a motion form (translation-rotation).
Patent or patent applications CN201811249160, CN201911027873, CN201810194794, CN202010346905 and CN201721466482 all provide a damper based on a ball screw, but these dampers are all dual-node dampers, and relative motion is required between two nodes thereof, so that application scenarios of the type of device are limited.
Patent application CN202010086393 provides a single node damper. The tuned mass damper comprises a bottom plate, a thrust bearing, a spiral spring, a ball screw, a ball nut, a mass block, a moving permanent magnet group, a fixed permanent magnet group, a sliding bearing and a copper flywheel; the device has the characteristics of negative-rigidity nonlinear energy traps by utilizing the nonlinearity of attraction force between the moving permanent magnet group and the fixed permanent magnet group; the ball screw type inerter-damper mechanism is adopted to amplify the equivalent vibration mass of the tuned mass damper, so that the vibration attenuation effect of the tuned mass damper is improved, and the problem of overlarge net extension of a spring of the ultra-low frequency vertical tuned mass damper is solved; the device integrates the advantages of the nonlinear energy trap and the tuned mass damper, and widens the control frequency band of the tuned mass damper; meanwhile, the electric eddy current damping technology is adopted, so that the durability of the device is improved.
However, in the device, the distance between the copper plate and the permanent magnet changes constantly, so that the damping force generated by the eddy current is unstable, and the damping force is very small when the distance is large. In addition, the copper flywheel rotates to generate damping force, the damping force acts on the device through torque, and pressure between the mass block and the smooth guide shaft is increased, so that friction force is generated. In addition, this device does not solve the problem of magnetic flux leakage of the eddy current damper.
Therefore, there is a need in the art to provide a damper with stable damping force, higher energy consumption efficiency and smoother movement.
Disclosure of Invention
The invention provides a vertical tuned mass ball screw type inerter-capacitor eddy current damper, which comprises an outer frame, a vertically arranged guide rod and a horizontally arranged support frame, wherein the outer frame is divided into an upper layer and a lower layer by the support frame; the guide rod is arranged on the upper layer or the lower layer, and two ends of the guide rod are respectively fixedly arranged on the support frame and the top wall or the bottom plate of the outer frame; the damper further comprises a mass block and a spring, the mass block is slidably sleeved on the guide rod, and the spring is sleeved on the guide rod; the free end of the spring is fixedly connected with the mass block, and the fixed end of the spring is fixedly connected with the support frame or the outer frame; the damper also comprises a permanent magnet, a conductor plate and an iron plate, wherein the permanent magnet is fixedly arranged on the vertical side wall of the mass block and can move up and down along with the mass block, the iron plate is attached to the vertical inner side wall of the outer frame, and the iron plate, the conductor plate, the permanent magnet and the mass block are positioned in the upper layer or the lower layer of the outer frame; the conductor plate is attached to the surface of the iron plate, and a set gap is reserved between the permanent magnet and the conductor plate; the damper also comprises a ball screw, a flywheel, a thrust bearing and a nut, wherein the ball screw is vertically arranged, the flywheel can rotate on the horizontal plane, the fixed end of the ball screw is fixedly connected with the geometric center of the mass block in the horizontal plane, and the free end of the ball screw penetrates through a hole reserved on the support frame and extends into the lower layer or the upper layer without the mass block; the nut is sleeved on the ball screw and is positioned in the lower layer or the upper layer where the free end of the ball screw is positioned; the flywheel is coaxially and fixedly connected with the nut; the thrust bearings are all arranged coaxially with the flywheel and the nut, one thrust bearing is arranged between the flywheel and the support frame, and the other thrust bearing is arranged between the flywheel and the bottom plate or the top plate of the outer frame in the vertical direction.
In a specific embodiment, the outer frame (8) is a rectangular parallelepiped frame, and the outer frame (8) is fixedly connected with the support frame (12); the mass block (3) is a cuboid; the permanent magnets (1) are symmetrically distributed on the left side surface, the right side surface and/or the front side surface and the rear side surface of the mass block; preferably, the permanent magnets are distributed on the front, rear, left and right sides of the mass block.
In the invention, when the damper has a large requirement on the damping force of the eddy current, the permanent magnets can be arranged on the front, the rear, the left and the right side surfaces of the mass block.
In a specific embodiment, a circular hole with a diameter larger than that of the ball screw (5) and smaller than that of the thrust bearing (10) is reserved in the center of the support frame (12).
In a specific embodiment, the number of the guide rods (7) is not less than three, and the guide rods and the more than three fixing points of the mass block are not collinear.
In a specific embodiment, the outer frame (8) has enough space or holes on the motion track of the free end of the ball screw (5), and a raised platform with a certain height is preferably arranged on the top surface of the outer frame bottom plate or the bottom surface of the outer frame top plate.
In a specific embodiment, a guide bearing used for reducing friction between the mass block (3) and the guide rod (7) and keeping linear motion is further arranged at the joint of the mass block and the guide rod.
In a specific embodiment, the upper surface and the lower surface of the flywheel are provided with grooves for arranging thrust bearings (10); preferably, the permanent magnets are strip magnets horizontally arranged in the length direction, the magnetizing direction of each permanent magnet, namely the connecting line direction of the N pole and the S pole of each permanent magnet, is perpendicular to the plate surface of the corresponding conductor plate (2), the polarities of the upper permanent magnet and the lower permanent magnet are opposite, namely when the side, close to the conductor plate, of the upper permanent magnet is the N pole, the side, far away from the conductor plate, of the lower permanent magnet is the S pole, and the side, far away from the conductor plate, of the lower permanent magnet is the N pole.
In the invention, each permanent magnet can be a full-length permanent magnet, or a plurality of permanent magnets are connected in series or a distance is arranged between the front and the back of the plurality of permanent magnets. The length, width and height of the permanent magnets and the distance between the permanent magnets can be designed according to the required size of the damping coefficient. The material of the permanent magnet can be, for example, a customized neodymium iron boron magnet.
In a specific embodiment, the gap between the permanent magnet and the conductor plate is kept constant during the up-and-down movement of the mass, and the gap can be adjusted according to the required magnitude of the damping coefficient, for example, 0.2-20 mm, preferably 1-5 mm.
In a specific embodiment, the fixed end of the spring is fixedly connected with the top surface of the support frame (12) or the top surface of the bottom plate of the outer frame (8).
In a specific embodiment, the outer frame (8), the guide rod (7) and the support frame (12) are all made of steel structures, the mass block (3) and the flywheel (9) are made of steel structures, and the conductor plate (2) is a copper plate or an aluminum plate.
In the invention, the ball screw (5) and the nut (11) are directly purchased ball screw nut components. In the present invention, a copper plate or an aluminum plate having high conductivity is generally selected as the conductor plate (2), and a copper plate is more preferable.
When the controlled structure vibrates, the motion direction of the mass block is along the direction of the guide rod to drive the ball screw fixedly connected with the mass block to do linear motion, and the ball screw enables the fixed body of the flywheel and the nut to rotate under the thrust provided by the screw threads, the balls and the thrust bearing, so that the structure generates large inertia mass.
In the invention, the mass block and the flywheel are positioned at different layers, so that the parts can be conveniently replaced at the later stage, the structural space can be fully utilized, and the enough large size of the flywheel is ensured; the spring deforms along with the movement of the mass block and is coaxially arranged with the guide rod so as to ensure that the spring does not skew.
According to the invention, according to the electromagnetic induction principle, under the condition that the mass block moves, damping acting force can be generated between the permanent magnet and the conductor plate, and the damping can be adjusted by adjusting the size and the number of the permanent magnets and the gap between the permanent magnet and the conductor plate; the iron plate is bonded to the conductor plate to reduce magnetic flux leakage.
In the invention, the thrust bearing and the flywheel are coaxially arranged, so that the thrust bearing can normally provide thrust when the flywheel rotates without influencing the rotation of the flywheel, and the condition that the thrust bearing is deviated in the rotating process is avoided.
Preferably, the outer frame has a sufficient space or a hole on a movement locus of a free end of the ball screw. When the ball screw moves linearly, the sufficient movement space is ensured, and the failure of the device is avoided.
Preferably, the outer frame is provided with a hollow structure to reduce the overall weight of the damper.
As a preferred scheme, the mass block is a cuboid; the number of the guide rods is not less than three, and the fixed connection points are not completely collinear. The mass block is a cuboid with a symmetrical center, so that the processing is convenient, and the pressure between the mass block and the guide rod is reduced to a certain extent; the guide rod can ensure that the mass block does not incline, so that the mass block can only do linear motion along the designated direction.
The beneficial effects of the invention at least comprise:
1. the ball screw type inertial volume is adopted, so that the equivalent vibration mass of a Tuned Mass Damper (TMD) is improved, the actual physical mass of the TMD is reduced, a larger inertial mass is formed, and the problem of overlarge static extension of a low-frequency vertical TMD spring element is solved.
2. By adopting linear eddy current damping, the application of the back iron reduces magnetic leakage, the eddy current damping energy consumption efficiency is obviously improved, and the durability of the device is improved by non-contact damping.
3. The upper and lower layered frame structure is adopted, so that the modular assembly is facilitated, certain parts can be replaced and still used, and the cost is reduced.
4. The invention relates to a single-node damper which is applied without connecting two points which generate relative motion and has wide application range.
In addition, compared with patent application CN202010086393, the damper of the present invention has the following features and advantages:
1) the invention and the patent application CN202010086393 both use eddy current damping, but the gap between the permanent magnet and the conductor plate of the invention is kept unchanged during the motion of the mass block and other parts, so the distance between the permanent magnet and the conductor plate can be set very small, and a very large damping force can be generated; in the invention, the mass block and other components do linear relative motion, the damping force has no torque to the mass block, the pressure between the mass block and the guide rod cannot be increased, and the motion is smooth. In patent application CN202010086393, the gap between the magnet and the conductor plate changes during the movement, the damping force also changes, and the damping force is small when the gap is large; and the permanent magnet and the conductor plate generate relative rotation motion, the mass block generates pressure on the guide rod under the action of the torque of the damping force, and the friction between the mass block and the guide rod is increased.
2) The iron plate is arranged to reduce magnetic leakage, and materials such as the iron plate are not arranged to reduce magnetic leakage in the patent application.
3) The invention has no negative rigidity nonlinear energy trap effect generated by the attraction force difference between the magnets. And patent application CN202010086393 has two sets of moving magnets and fixed magnets, and the difference in attraction between the magnets during the movement will generate the effect of negative stiffness nonlinear energy trap, which is beneficial to widening the vibration damping band. However, when the vibration frequency of the damper disclosed by the invention is close to a controlled structure, the damping effect of the damper disclosed by the invention is better than that of a damper containing negative-stiffness nonlinear energy trap effect.
When the vibration energy of the controlled structure is transmitted to the damper, the mass block is caused to vibrate up and down to drive the flywheel to rotate at a high speed, and the conductor plate cuts the magnetic induction lines of the permanent magnet to form an eddy current damping effect, and the back iron can reduce magnetic leakage and improve damping energy consumption efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a vertical tuned mass ball screw inerter-eddy current damper provided by the invention.
FIG. 2 is a schematic structural diagram of another vertical tuned mass ball screw inerter-eddy current damper provided by the invention.
In the figure: 1-a permanent magnet; 2-a conductor plate; 3-a mass block; 4-iron plate; 5-ball screw; 6-a spring; 7-a guide rod; 8-outer frame; 9-a flywheel; 10-a thrust bearing; 11-a nut; 12-a support frame.
Detailed Description
The embodiment discloses a vertical tuned mass ball screw type inerter eddy current damper, as shown in fig. 1 and 2, the outer frame 8 is divided into an upper layer and a lower layer by the support frame 12; the guide rod 7 is vertically arranged and fixedly connected with the top surface and the bottom surface of the upper layer, or the guide rod 7 is vertically arranged and fixedly connected with the top surface and the bottom surface of the lower layer. The mass block 3 is sleeved on the guide rod 7 in a sliding way; the free end of the spring 6 is fixedly connected with the mass block 3, and the fixed end of the spring 6 is fixedly connected with the support frame 12 or the outer frame 8. The iron plate 4 is attached to the inner wall surface of the upper layer or the lower layer where the mass block 3 is located; the conductor plate 2 is attached to the surface of the iron plate 4; the permanent magnet 1 is arranged on the vertical side face of the mass block 3, and a set gap is reserved between the permanent magnet 1 and the conductor plate 2. The ball screw 5 is vertically arranged, a fixed end is fixedly connected with the geometric center of the mass block 3, the mass block is a cuboid, and a free end of the ball screw penetrates through a hole reserved on the support frame 12 and extends to the other layer; the nut 11 is sleeved on the ball screw 5 and is positioned on the lower layer or the upper layer where the free end of the ball screw 5 is positioned; the flywheel 9 is coaxially and fixedly connected with the nut 11; the thrust bearing 10 is coaxially arranged in a groove between the flywheel 9 and the support frame 12 and a groove between the flywheel 9 and the outer frame 8.
The guide rods 7 are provided with guide bearings, the number of the guide rods is not less than three, and the fixed connection points are not completely collinear; the outer frame 8 has enough space or holes on the movement track of the free end of the ball screw 5, and the outer frame 8 is a frame with a protrusion as shown in fig. 2 inside under the selection of the enough space.
The working principle of the damper is as follows:
the vertical tuned mass ball screw type inerter-capacitor eddy current damper (short for device) is fixed on a controlled structure through a bottom plate of an outer frame 8, when the amplitude of the controlled structure is large and the main vibration frequency of the device is adjusted to be close to the vibration frequency of the controlled structure, the vibration energy of the controlled structure is transmitted to the device to cause the mass block 3 to vibrate up and down, a ball screw transmission system consisting of a ball screw 5 fixed on the mass block and a nut 11 sleeved in the ball screw converts the linear motion of the mass block into the high-speed rotation motion of a flywheel 9, the high-speed rotation motion of the flywheel 9 generates an inertial mass effect far greater than the self physical mass, the actual physical mass of the device is reduced, the mass ratio of the device is improved, and the net elongation of a spring of a low-frequency structure controlled by the device is reduced; in addition, the up-and-down movement of the mass block enables the conductor plate to cut the magnetic induction lines of the permanent magnet group, an eddy current damping effect is formed, and back iron behind the conductor plate can reduce magnetic leakage and improve damping energy consumption efficiency.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions and substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a vertical harmonious mass ball screw formula is used to capacitance eddy current damper which characterized in that: the flywheel type flywheel mass generating device comprises an outer frame (8), a guide rod (7) and a support frame (12), wherein the guide rod (7) is vertically arranged, the support frame (12) is horizontally arranged, the outer frame (8) is divided into an upper layer and a lower layer by the support frame (12), the upper layer and the lower layer are used for accommodating a flywheel (9) and a mass block (3), the mass block (3) is positioned at the lower layer when the flywheel (9) is positioned at the upper layer, and the mass block (3) is positioned at the upper layer when the flywheel (9) is positioned at the lower layer; the outer frame (8) is a cuboid framework, and the outer frame (8) is fixedly connected with the support frame (12); the guide rod (7) is arranged on the upper layer or the lower layer, and two ends of the guide rod are respectively fixedly arranged on the support frame and the top wall or the bottom plate of the outer frame (8);
the damper further comprises a mass block (3) and a spring (6), the mass block (3) is slidably sleeved on the guide rod (7), and the spring is sleeved on the guide rod (7); the free end of the spring (6) is fixedly connected with the mass block (3), and the fixed end of the spring is fixedly connected with the support frame (12) or the outer frame (8); the number of the guide rods (7) is not less than three, and the guide rods and the more than three fixed connection points of the mass block are not completely collinear;
the damper further comprises a permanent magnet (1), a conductor plate (2) and an iron plate (4), the permanent magnet (1) is fixedly arranged on the vertical side wall of the mass block (3) and can move up and down along with the mass block (3), the iron plate (4) is attached to the vertical inner side wall of the outer frame, and the iron plate (4), the conductor plate (2), the permanent magnet (1) and the mass block (3) are located in the upper layer or the lower layer of the outer frame; the conductor plate (2) is attached to the surface of the iron plate (4), and a set gap is reserved between the permanent magnet (1) and the conductor plate (2); in the process of up-and-down movement of the mass block, the gap between the permanent magnet and the conductor plate is kept unchanged;
the damper further comprises a ball screw (5), a nut (11), a flywheel (9) and a thrust bearing (10), wherein the ball screw (5), the nut (11), the flywheel (9) and the thrust bearing (10) are vertically arranged, the fixed end of the ball screw (5) is fixedly connected with the geometric center of the mass block (3) in the horizontal plane, and the free end of the ball screw (5) penetrates through a hole reserved in the support frame (12) and extends to the lower layer or the upper layer without the mass block (3); the nut (11) is sleeved on the ball screw (5) and is positioned in a lower layer or an upper layer where the free end of the ball screw (5) is positioned; the flywheel (9) is coaxially and fixedly connected with the nut (11); the thrust bearings (10) are coaxially arranged with the flywheel (9) and the nut (11), one thrust bearing (10) is arranged between the flywheel (9) and the support frame (12), and the other thrust bearing (10) is arranged between the flywheel (9) and a bottom plate or a top plate of the outer frame (8) in the vertical direction.
2. The vertical tuned mass ball screw inerter-eddy current damper according to claim 1, wherein: the mass block (3) is a cuboid; the permanent magnets (1) are symmetrically distributed on the left and right side surfaces and/or the front and rear side surfaces of the mass block.
3. The vertical tuned mass ball screw inerter-eddy current damper according to claim 1, wherein: and a round hole with the diameter larger than that of the ball screw (5) and smaller than that of the thrust bearing (10) is reserved at the center of the support frame (12).
4. The vertical tuned mass ball screw inerter-eddy current damper according to claim 1, wherein: and the outer frame (8) leaves enough space or is provided with a hole on the motion trail of the free end of the ball screw (5).
5. The vertically tuned mass ball screw inerter-eddy current damper according to claim 4, wherein: and a protruding platform with a certain height is arranged on the top surface of the outer frame bottom plate or the bottom surface of the outer frame top plate.
6. The vertical tuned mass ball screw inerter-eddy current damper according to claim 1, wherein: and a guide bearing used for reducing friction between the mass block (3) and the guide rod (7) and keeping linear motion is further arranged at the joint of the mass block and the guide rod.
7. The vertical tuned mass ball screw inerter-eddy current damper according to claim 1, wherein: grooves for arranging the thrust bearings (10) are formed in the upper surface and the lower surface of the flywheel.
8. The vertical tuned mass ball screw inerter-capacitor eddy current damper as claimed in any one of claims 1 to 7, wherein: the permanent magnets are strip magnets horizontally arranged in the length direction, the magnetizing direction of each permanent magnet, namely the connecting line direction of the N pole and the S pole of each permanent magnet, is perpendicular to the plate surface of the corresponding conductor plate (2), the polarities of the upper permanent magnet and the lower permanent magnet are opposite, namely when the side, close to the conductor plate, of the upper permanent magnet is the N pole, the side, far away from the conductor plate, of the lower permanent magnet is the S pole, and the side, far away from the conductor plate, of the lower permanent magnet is the N pole.
9. The vertical tuned mass ball screw inerter-capacitor eddy current damper as claimed in any one of claims 1 to 7, wherein: the fixed end of the spring is fixedly connected with the top surface of the support frame (12) or the top surface of the bottom plate of the outer frame (8).
10. The vertical tuned mass ball screw inerter-capacitor eddy current damper as claimed in any one of claims 1 to 7, wherein: the material of frame (8), guide arm (7) and support frame (12) is the steel construction, the material of quality piece (3) and flywheel (9) is the steel construction, conductor plate (2) are copper or aluminum plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010958689.4A CN112128286B (en) | 2020-09-14 | 2020-09-14 | Vertical tuned mass ball screw type inertial capacitance eddy current damper |
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| CN202010958689.4A CN112128286B (en) | 2020-09-14 | 2020-09-14 | Vertical tuned mass ball screw type inertial capacitance eddy current damper |
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| CN112128286A CN112128286A (en) | 2020-12-25 |
| CN112128286B true CN112128286B (en) | 2021-09-24 |
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