CN109899443A - A kind of vibration absorber based on magnetic rheology elastic body - Google Patents
A kind of vibration absorber based on magnetic rheology elastic body Download PDFInfo
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- CN109899443A CN109899443A CN201910302582.1A CN201910302582A CN109899443A CN 109899443 A CN109899443 A CN 109899443A CN 201910302582 A CN201910302582 A CN 201910302582A CN 109899443 A CN109899443 A CN 109899443A
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- 239000010959 steel Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 25
- 230000009467 reduction Effects 0.000 claims abstract description 18
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 14
- 230000001133 acceleration Effects 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011229 interlayer Substances 0.000 claims abstract description 4
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- 229920001971 elastomer Polymers 0.000 claims description 8
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Abstract
The invention discloses a kind of vibration absorbers based on magnetic rheology elastic body, including vibration reduction platform, cylinder barrel and pedestal；It further include the vibration damping portion that cylinder barrel top is set and the electromagnetic induction portion that cylinder barrel lower part is set；Vibration damping portion and electromagnetic induction portion have certain spacing；Wherein, vibration damping portion is made of muti-piece sandwich clad steel arranged in parallel and magnetic rheology elastic body, and magnetic rheology elastic body is filled between adjacent interlayers steel plate and between sandwich clad steel and cylinder barrel inner sidewall；Electromagnetic induction portion is the iron core for being wound with coil；The acceleration transducer for further including current controller and being arranged on vibration reduction platform, acceleration transducer are connect with current controller, and current controller one end is connect by conducting wire with coil, and the current controller other end is connect by conducting wire with external power supply；Wherein, vibration reduction platform and pedestal are all made of un-conducted magnetic material and are prepared；Sandwich clad steel and cylinder barrel are all made of high magnetic permeability, low remanent magnetism material is prepared.
Description
Technical field
The present invention relates to a kind of equipment for inhibiting of vibration that can be widely applied to machinery, pipeline, platform and civil structure, especially
It is related to a kind of vibration absorber based on magnetic rheology elastic body.
Background technique
Magnetorheological materials are a kind of intellectual materials, it can export corresponding damping because of the variation of its ambient magnetic field strength
Power will usually control electric current input coil, and coil generates corresponding magnetic field, and magnetic field makes magnetorheological materials export corresponding damping force.It will
Magnetorheological materials are filled into vibration absorber, with characteristic of the magnetic rheological vibration damper because of its variation rigidity variable damping made of this, quilt
Largely it is used in vibration damping environment.The most widely used at present is magnetorheological fluid materials, existing magnetic current flowing deformation vibration-damping device
The structure of working cylinder, piston and piston rod is mainly used, magnetorheological fluid is filled in working cylinder, magnetorheological fluid is produced in magnet exciting coil
Under raw magnetic fields, damping force is generated with reciprocating motion of the piston in working cylinder by piston rod.In order to prevent by
It is leaked in magnetorheological fluid and damper performance is caused to decline, need to carry out excellent sealing to working cylinder.In addition, magnetorheological fluid be by
High magnetic permeability, low hysteresis small soft magnetic particles and the non-magnetic liquid (such as silicone oil, mineral oil) as carrier fluid mix
Suspended substance made of conjunction, since density of magnetic particles is higher, and carrier fluid density is lower, and the presence of density contrast holds magnetic-particle
It is easily settled, seriously affect the performance of damper.To sum up, existing MR fluid shock absorber is there are magnetorheological fluid difficult sealing and easily heavy
The problem of drop, limits the application of magnetic current flowing deformation vibration-damping device.
A rising star of the magnetic rheology elastic body (hereinafter referred to as MRE) as magnetorheological materials family, has magnetorheological materials concurrently
And the advantages of elastomer, and the disadvantages of magnetorheological fluid is easily settled, stability is poor is overcome, become magnetorheological materials in recent years and studies
A hot spot.But the focus of MRE research at present focuses primarily upon MRE material property, mechanical model and performance test side
Face, and MRE device development and its real application research are less.And in the MRE vibration absorber of existing development, use is still
The piston coiling form of traditional magnetic current flowing deformation vibration-damping device, coil and MRE material layer are not isolated.When coil continues working
Afterwards, the heat generated easily causes MRE material layer and qualitative change occurs, and then influences the material property of MRE, and expected subtract is not achieved
Vibration effect.To sum up, there are the high temperature generated after coil heating to cause MRE material layer for the magnetic rheology elastic body damper of the prior art
The problem of qualitative change occurs.Therefore, invent that a kind of high temperature-proof formula magnetic rheology elastic body vibration absorber is necessary and great engineering is answered
Use prospect.
Summary of the invention
Goal of the invention: technical problem to be solved by the invention is to provide a kind of, and the vibration damping based on magnetic rheology elastic body fills
It sets, which is applied in vibration absorber using magnetic rheology elastic body substitution magnetorheological fluid, can not only be avoided magnetorheological
The problem of easily settled existing for liquid, difficult sealing, but also be able to solve in existing magnetic rheology elastic body device, magnetic rheology elastic body
The hidden danger of performance failure easily occurs at high temperature.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of vibration absorber based on magnetic rheology elastic body, including vibration reduction platform, cylinder barrel and pedestal；It further include that setting exists
The vibration damping portion on cylinder barrel top and the electromagnetic induction portion that cylinder barrel lower part is set；Between vibration damping portion and electromagnetic induction portion have centainly
Away from；Wherein, vibration damping portion is made of muti-piece sandwich clad steel arranged in parallel and magnetic rheology elastic body, between adjacent interlayers steel plate
And magnetic rheology elastic body is filled between sandwich clad steel and cylinder barrel inner sidewall；Electromagnetic induction portion is the iron for being wound with coil
Core；The acceleration transducer for further including current controller and being arranged on vibration reduction platform, acceleration transducer and current control
Device connection, current controller one end are connect by conducting wire with coil, and the current controller other end is connected by conducting wire and external power supply
It connects；Wherein, vibration reduction platform and pedestal are all made of un-conducted magnetic material and are prepared；Sandwich clad steel and cylinder barrel be all made of high magnetic permeability,
Low remanent magnetism material is prepared.
Wherein, the cylinder barrel lower edge extends outward to form fixed edge, and fixed edge is fixedly connected with pedestal.
Wherein, more springs are equipped between vibration reduction platform and fixed edge.
Wherein, the magnetic rheology elastic body is magnetorheological elastomer based on silicone rubber.
Wherein, the magnetic rheology elastic body is fixedly connected with sandwich clad steel by high temperature and pressure vulcanization, the magnetorheological bullet
Property body and cylinder barrel inner sidewall be fixedly connected also by high temperature and pressure vulcanization.
Wherein, iron core in being horizontally arranged, vertically cut between sandwich clad steel and cylinder barrel inner sidewall by magnetic rheology elastic body
Movement is cut, the magnetic direction that the direction of motion of magnetic rheology elastic body is generated with coil is mutually perpendicular to.
The working principle of vibration absorber of the present invention: vibration reduction platform is equipped with the acceleration transducer of detection vibration, acceleration
Sensor is connect with current controller, and current controller can export in real time control electric current, electric current according to the size of external vibration
The control electric current of controller output is output on coil, after being passed through DC current in coil, due to electromagnetic induction effect, device
Inside will generate magnetic field, and magnetic pole is located at the both ends of coil, generates closed magnetic circuit in the vibration absorber；Magnetic in vibration absorber
Magnetorheological elastomer does vertical shearing movement between sandwich clad steel and cylinder barrel, and the magnetic field that coil generates is at magnetic rheology elastic body
It is vertical to move direction；For magnetic rheology elastic body under magnetic fields, internal magnetization particle quickly forms chain, material itself
Rigidity and damping by generate variation, thus have the function that inhibit vibration；And electric current is lost after disconnecting power supply, in coil,
It is originally present in the magnetic field around coil also to disappear immediately, due to the invertibity of magnetic rheology elastic body, the rigidity of the vibration absorber
Original state is promptly restored to damping.
Compared with prior art, technical solution of the present invention has the beneficial effect that
Vibration absorber of the present invention places magnetic rheology elastic body and inductance loop seclusion, solves in the prior art since coil is logical
The problem of high temperature generated after electricity fever causes MRE material layer that qualitative change occurs, has the advantages that high temperature-proof；In addition, the present invention is logical
The size of current for entering coil is controlled by the current controller connecting with coil, and the acceleration of detection vibration is provided on vibration reduction platform
Sensor, acceleration transducer are connect with current controller, and current controller can export in real time according to the size of external vibration
Electric current is controlled, to change the size of externally-applied magnetic field, and then changes the rigidity and damping of magnetic rheology elastic body, to reach to flat
The effect of platform vibration Contrast tuned imaging.
Detailed description of the invention
Fig. 1 is that the present invention is based on the structural schematic diagrams of the vibration absorber of magnetic rheology elastic body；
Wherein, 1, vibration reduction platform, 2, sandwich clad steel, 3, magnetic rheology elastic body, 4, cylinder barrel, 5, coil, 6, iron core, 7, bullet
Spring, 8, bolt, 9, pedestal, 10, fixed edge.
Specific embodiment
Below in conjunction with attached drawing, technical scheme is described further.
As shown in Figure 1, the present invention is based on the vibration absorber of magnetic rheology elastic body, the cylinder including vibration reduction platform 1, upper and lower opening
Cylinder 4 and the pedestal 9 for carrying cylinder barrel 4；Vibration absorber of the present invention further includes being arranged in cylinder barrel 4 and being located at 4 top of cylinder barrel
Vibration damping portion, and be arranged in cylinder barrel 4 and be located at the electromagnetic induction portion of 4 lower part of cylinder barrel, both vibration damping portion and electromagnetic induction portion
It does not contact, be not attached to, there is certain spacing；Wherein, vibration damping portion is by muti-piece sandwich clad steel 2 arranged in parallel and magnetorheological
Elastomer 3 forms, and magnetorheological elasticity is filled between adjacent interlayers steel plate 2 and between 4 inner sidewall of sandwich clad steel 2 and cylinder barrel
Body 3；Electromagnetic induction portion is the iron core 6 for being wound with coil 5；Vibration absorber of the present invention further includes that current controller 12 and setting exist
Acceleration transducer 11 on vibration reduction platform 1, acceleration transducer 11 and current controller 12 are passed by cable connection, acceleration
Sensor 11 by the vibration signal real-time delivery of shaking platform 1 to current controller 12,12 one end of current controller by conducting wire with
Coil 5 connects, and 12 other end of current controller is connect by conducting wire with external power supply；Vibration reduction platform 1 and pedestal 9 are all made of and do not lead
Magnetic material is prepared, sandwich clad steel 2 and cylinder barrel 4 is all made of high magnetic permeability, low remanent magnetism material is prepared, 2 He of sandwich clad steel
Closed magnetic circuit is collectively formed in cylinder barrel 4 and magnetic rheology elastic body 3 and iron core 6, and after connecting DC power supply, portion can be generated in the device
High-intensity magnetic field, magnetic field can act on magnetic rheology elastic body 3；Iron core 6 in electromagnetic induction portion is in lie in a horizontal plane in cylinder barrel 4, magnetic
Magnetorheological elastomer 3 carries out vertical shearing movement, the movement side of magnetic rheology elastic body 3 between 4 inner sidewall of sandwich clad steel 2 and cylinder barrel
It is mutually perpendicular to the magnetic direction generated with coil 5.
Wherein, 4 lower edge of cylinder barrel extends outward to form fixed along 10, fixed to connect with pedestal 9 by the way that bolt 8 is fixed along 10
It connects；Vibration reduction platform 1 and fixation are equipped with more springs 7 between 10, and spring 7 provides the vertical rigidity of the device and increases dress
The load capacity set, while preventing magnetic rheology elastic body (MRE material layer) 3 vertical displacements are excessive and fall off, play certain limit
Position effect；Cylinder barrel 4 and magnetic yoke of the iron core 6 as coil 5, in sandwich clad steel 2, magnetic rheology elastic body 3 and cylinder barrel 4 and iron core 6
Between form the magnetic loop of closure.
Magnetic rheology elastic body 3 is magnetorheological elastomer based on silicone rubber, it be natural rubber by being mixed with magnetic-particle or
Silicone rubber matrix solidifies under the action of externally-applied magnetic field to be made, and the rigidity of this material and damping can be with externally-applied magnetic fields after solidification
Change and changes.The present invention changes the magnetic induction intensity in device by changing the size of current in coil 5, to control magnetic
The rigidity and damping of magnetorheological elastomer 3, and then vibration absorber performance is adjusted, have the function that energy-dissipating and shock-absorbing.I.e. magnetorheological elasticity
The characterisitic parameter of body 3 can be adjusted according to controlled device dynamic response in real time, so as to improve the effectiveness in vibration suppression of vibration absorber.
The present invention has the mode that uses of multistage-combination, can increase and decrease sandwich clad steel according to every damping object performance requirement
The quantity of 2 light plates, while the quantity of magnetic rheology elastic body 3 carries out mating increase and decrease therewith, thus the flexible modulation vibration absorber
Performance parameter, to meet the vibration damping demand for control of different operating platform.Sandwich clad steel 2 includes three parallel perpendicular in the present embodiment
To the steel plate of placement.
Vibration absorber of the invention is passed through DC current to coil windings, so that generating magnetic field inside device；MRE material
Under the influence of a magnetic field, rigidity and damping generate variation to layer, to have the function that inhibit vibration.The present invention well solves
Difficult sealing and easily settled problem existing for magnetic current flowing deformation vibration-damping device, carrier fluid is by rubber-like material in magnetic rheology elastic body
It is replaced, magnetic-particle will not settle at any time, not need to be absolutely sealed.The present invention is using MRE mechanical property with outer magnetic
Variation and Rapid reversible variation characteristic, realize platform intelligent vibration damping purpose.It is of the invention based on magnetic rheology elastic body
Vibration absorber is isolated by coil with MRE material layer, and qualitative change occurs for MRE material layer after coil working can be effectively prevent to generate heat, together
When device also have many advantages, such as production is simple, energy consumption is low, without being absolutely sealed.
Claims (6)
1. a kind of vibration absorber based on magnetic rheology elastic body, it is characterised in that: including vibration reduction platform, cylinder barrel and pedestal；Also
Including the vibration damping portion on cylinder barrel top is arranged in and the electromagnetic induction portion of cylinder barrel lower part is arranged in；Vibration damping portion and electromagnetic induction portion have
Certain spacing；Wherein, vibration damping portion is made of muti-piece sandwich clad steel arranged in parallel and magnetic rheology elastic body, adjacent interlayers
Magnetic rheology elastic body is filled between steel plate and between sandwich clad steel and cylinder barrel inner sidewall；Electromagnetic induction portion is that winding is wired
The iron core of circle；The acceleration transducer for further including current controller and being arranged on vibration reduction platform, acceleration transducer and electricity
Stream controller connection, current controller one end are connect by conducting wire with coil, and the current controller other end passes through conducting wire and outside
Power supply connection；Wherein, vibration reduction platform and pedestal are all made of un-conducted magnetic material and are prepared；Sandwich clad steel and cylinder barrel are all made of high magnetic
Conductance, low remanent magnetism material are prepared.
2. the vibration absorber according to claim 1 based on magnetic rheology elastic body, it is characterised in that: the cylinder barrel lower edge
Fixed edge is extended outward to form, fixed edge is fixedly connected with pedestal.
3. the vibration absorber according to claim 2 based on magnetic rheology elastic body, it is characterised in that: vibration reduction platform and fixation
More springs are equipped between.
4. the vibration absorber according to claim 1 based on magnetic rheology elastic body, it is characterised in that: the magnetorheological elasticity
Body is magnetorheological elastomer based on silicone rubber.
5. the vibration absorber according to claim 1 based on magnetic rheology elastic body, it is characterised in that: the magnetorheological elasticity
Body is fixedly connected with sandwich clad steel by high temperature and pressure vulcanization, and the magnetic rheology elastic body and cylinder barrel inner sidewall are also by high temperature height
Pressure vulcanization is fixedly connected.
6. the vibration absorber according to claim 1 based on magnetic rheology elastic body, it is characterised in that: iron core is put in level
It sets, magnetic rheology elastic body carries out vertical shearing movement, the movement of magnetic rheology elastic body between sandwich clad steel and cylinder barrel inner sidewall
The magnetic direction that direction is generated with coil is mutually perpendicular to.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910302582.1A CN109899443A (en) | 2019-04-15 | 2019-04-15 | A kind of vibration absorber based on magnetic rheology elastic body |
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| CN201910302582.1A CN109899443A (en) | 2019-04-15 | 2019-04-15 | A kind of vibration absorber based on magnetic rheology elastic body |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284425A (en) * | 2019-07-12 | 2019-09-27 | 吉林建筑大学 | A kind of bladder-type magnetic rheology elastic body ball-type bridge pad |
| CN110344320A (en) * | 2019-07-12 | 2019-10-18 | 沈阳建筑大学 | A kind of magnetic rheology elastic body bridge pad |
| CN110700084A (en) * | 2019-09-09 | 2020-01-17 | 扬州大学 | Laminated magneto-rheological vibration isolation support based on transmission lifting device |
| CN110805645A (en) * | 2019-11-18 | 2020-02-18 | 哈尔滨工业大学 | Flexible supporting electromagnetic quasi-zero stiffness vibration isolation device |
| CN110905963A (en) * | 2019-12-04 | 2020-03-24 | 珠海格力电器股份有限公司 | Vibration damping device and refrigeration system |
| CN112201924A (en) * | 2020-10-09 | 2021-01-08 | 迪泰（浙江）通信技术有限公司 | Adjustable vibration damper for mobile satellite antenna |
| CN112443623A (en) * | 2019-08-30 | 2021-03-05 | 现代自动车株式会社 | Variable steering wheel damper using electromagnet |
| CN112454382A (en) * | 2020-11-19 | 2021-03-09 | 南京航空航天大学 | Variable-rigidity self-adaptive vibration reduction system for cutting of industrial robot |
| CN113984194A (en) * | 2021-10-29 | 2022-01-28 | 西南交通大学 | Cable-stay bridge cable vibration monitoring devices and system |
| CN114251250A (en) * | 2021-12-02 | 2022-03-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Damping ring, compressor assembly and air conditioner |
| CN114473755A (en) * | 2020-11-11 | 2022-05-13 | 湖南易红堂家具制造有限公司 | Damping device of furniture polisher |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110344320A (en) * | 2019-07-12 | 2019-10-18 | 沈阳建筑大学 | A kind of magnetic rheology elastic body bridge pad |
| CN110284425A (en) * | 2019-07-12 | 2019-09-27 | 吉林建筑大学 | A kind of bladder-type magnetic rheology elastic body ball-type bridge pad |
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| CN112443623A (en) * | 2019-08-30 | 2021-03-05 | 现代自动车株式会社 | Variable steering wheel damper using electromagnet |
| CN110700084A (en) * | 2019-09-09 | 2020-01-17 | 扬州大学 | Laminated magneto-rheological vibration isolation support based on transmission lifting device |
| CN110805645A (en) * | 2019-11-18 | 2020-02-18 | 哈尔滨工业大学 | Flexible supporting electromagnetic quasi-zero stiffness vibration isolation device |
| CN110905963A (en) * | 2019-12-04 | 2020-03-24 | 珠海格力电器股份有限公司 | Vibration damping device and refrigeration system |
| CN112201924A (en) * | 2020-10-09 | 2021-01-08 | 迪泰（浙江）通信技术有限公司 | Adjustable vibration damper for mobile satellite antenna |
| CN112201924B (en) * | 2020-10-09 | 2022-05-27 | 迪泰（浙江）通信技术有限公司 | Adjustable vibration damper for mobile satellite antenna |
| CN114473755A (en) * | 2020-11-11 | 2022-05-13 | 湖南易红堂家具制造有限公司 | Damping device of furniture polisher |
| CN112454382A (en) * | 2020-11-19 | 2021-03-09 | 南京航空航天大学 | Variable-rigidity self-adaptive vibration reduction system for cutting of industrial robot |
| CN113984194A (en) * | 2021-10-29 | 2022-01-28 | 西南交通大学 | Cable-stay bridge cable vibration monitoring devices and system |
| CN114251250A (en) * | 2021-12-02 | 2022-03-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Damping ring, compressor assembly and air conditioner |
| CN114251250B (en) * | 2021-12-02 | 2023-10-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Vibration damping ring, compressor assembly and air conditioner |
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