CN113983116A - Semi-active vibration-damping and impact-resisting device based on metal rubber and magnetorheological effect - Google Patents
Semi-active vibration-damping and impact-resisting device based on metal rubber and magnetorheological effect Download PDFInfo
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- CN113983116A CN113983116A CN202111334201.1A CN202111334201A CN113983116A CN 113983116 A CN113983116 A CN 113983116A CN 202111334201 A CN202111334201 A CN 202111334201A CN 113983116 A CN113983116 A CN 113983116A
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- 229920001967 Metal rubber Polymers 0.000 title claims abstract description 72
- 238000013016 damping Methods 0.000 title claims abstract description 49
- 230000000694 effects Effects 0.000 title claims abstract description 30
- 238000004804 winding Methods 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 238000010008 shearing Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 7
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control arrangements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a semi-active vibration-damping and impact-resisting device based on metal rubber and magneto-rheological effect, which comprises a shell with a cavity and an end cover arranged on the shell for closing the cavity, wherein an upper metal rubber element and a lower metal rubber element are respectively arranged at the upper end and the inner lower end in the cavity, a piston is arranged between the upper metal rubber element and the lower metal rubber element, a gap is formed between the periphery of the piston and the inner wall of the cavity, a piston rod is vertically arranged in the middle of the upper end of the piston, the piston rod penetrates through the upper metal rubber element and the end cover and then extends out of the shell, the cavity is filled with magneto-rheological fluid, an axial winding magnetic field is arranged in the piston, the device adopts a scheme of a solid-liquid composite vibration damper with metal rubber as a main component and magneto-rheological effect as auxiliary control, can generate ideal vibration-damping performance and can be controlled intelligently, and a matched control program which is suitable for the running characteristics of different devices can be developed gradually in actual tests and production subsequently, has wide practical application prospect.
Description
Technical Field
The invention relates to the technical field of vibration reduction and buffering, in particular to a semi-active vibration reduction and impact resistance device based on metal rubber and magneto-rheological effect.
Background
Since harmful vibrations in most cases have a harmful effect on the operation of the machine, the design of damping the mechanical vibrations and cutting off the transmission of the vibrations is a critical part of the reliability of the operation of the machine, and the shock absorbers have become an indispensable and important device for civil and military equipment. Especially, in the field of vibration reduction, the requirements on the aspects of intelligence, high efficiency, reliability and the like are higher and higher in recent years, and the development of a controllable, high-efficiency and reliable vibration reducer which is suitable for various mechanical equipment with severe working conditions becomes very valuable.
Although the existing active control shock absorber is mature, most of the shock absorbers need a working environment after precision maintenance and are high in cost, and the shock absorber used on the traditional heavy equipment and high in reliability lacks precision, is low in controllability and has a low upper limit on the shock absorbing effect.
Disclosure of Invention
Aiming at the defects, the invention provides a semi-active vibration and impact reduction device based on metal rubber and magneto-rheological effect.
The invention solves the technical problem by adopting the scheme that the semi-active vibration-damping and impact-resisting device based on the metal rubber and the magneto-rheological effect comprises a shell with a cavity and an end cover arranged on the shell for sealing the cavity, wherein an upper metal rubber element and a lower metal rubber element are respectively arranged at the upper end and the inner lower end in the cavity, a piston is arranged between the upper metal rubber element and the lower metal rubber element, a gap is formed between the periphery of the piston and the inner wall of the cavity, a piston rod is vertically arranged in the middle of the upper end of the piston, the piston rod penetrates through the upper metal rubber element and the end cover and then extends out of the shell, the cavity is filled with the magneto-rheological material, 6 magnetic field coil windings are uniformly distributed on the inner circumference of the piston, the magnetic poles of the adjacent magnetic field coil windings are opposite, and lead wires of the magnetic field coil windings are led out through a channel in the piston rod.
Further, the piston includes the pressure disk, installs upper piston cover, lower piston cover at pressure disk upper and lower surface respectively, and piston lower extreme fixed mounting is at pressure disk upper surface center, and the piston is worn to establish the piston cover, the circumference equipartition has six fretwork portions to form six axial wire winding regions of axial equipartition in the pressure disk, and even the coiling has field coil winding on the axial wire winding region, and adjacent axial winding's magnetic pole is opposite.
Furthermore, coil accommodating grooves are formed in the contact areas of the upper piston cover and the lower piston cover and the upper magnetic field coil winding of the piston rod.
Furthermore, the upper surface of the lower piston cover is provided with a lead groove communicated with the coil accommodating groove on the lower piston cover, a lead channel for leading out a coil wiring end of the axial winding magnetic field is arranged in the piston rod, the lower end of the lead channel is communicated with the lead groove, and the upper end of the lead channel is communicated with the periphery of the upper end of the piston.
Further, the upper piston cover and the lower piston cover are fixedly connected with the pressure plate through screws, and sealing rings are arranged between the upper piston cover, the lower piston cover and the pressure plate.
Furthermore, the periphery of the end cover is fixed at the upper opening part of the cavity of the shell through a screw and an end cover screw gasket.
Furthermore, the periphery of the upper end of the piston is provided with a connecting thread.
A vibration-damping and impact-resisting method comprises the following steps: fixing the shell on a test bench or vibration-isolated equipment, and connecting the upper end of the piston with the vibration-isolated equipment; when impact force or pulling force is input from the outside, the upper end of the piston rod transmits the acting force to the piston part, so that the piston reciprocates between the upper metal rubber damping element and the lower metal rubber damping element to generate displacement, at the moment, the volumes of the upper cavity and the lower cavity are changed due to the compressibility of the metal rubber, and the magnetorheological fluid in the magnetorheological fluid has the tendency of flowing through a shearing gap; when the magnetic field coil is not electrified or no instruction signal is input, the damping force is completely generated by the metal rubber damping structure soaked in the magnetorheological fluid, when the magnetic field coil is activated according to an external given electric signal to generate a magnetic field, the magnetorheological fluid flowing upwards or downwards in the shearing gap generates a rheological effect under the action of the magnetic field to generate shearing damping force, the magnetorheological fluid in the upper metal rubber element and the lower metal rubber element also generates a tendency of converting to semisolid due to the effect of the magnetic field, and the rigidity and the damping of the metal rubber element are enhanced; the damping and rigidity can be stably and efficiently controlled by controlling the current magnitude through the outside under the combined action of multiple effects.
Compared with the prior art, the invention has the following beneficial effects: the magnetic circuit has the advantages that the structure is simple, the design is reasonable, the magnetic field of the axial winding fixed on the piston is adopted, the magnetic induction intensity in a shearing gap is improved, the structure of the magnetic circuit is reasonable, the main action part of the whole magnetic circuit is limited in the shell, the anti-interference capability is strong, and the stable working can be realized under the severe working condition; the scheme of the solid-liquid composite shock absorber with the metal rubber as the main component and the magnetorheological effect as the auxiliary control component is adopted, the ideal shock absorption performance can be generated, the intelligent performance is controllable, the matched control program which is suitable for the running characteristics of different equipment can be developed gradually in the actual test and production, and the actual application prospect is wide.
Drawings
The invention is further described with reference to the following figures.
Fig. 1 is a schematic structural view of the present apparatus.
Fig. 2 is an exploded view of the piston structure.
In the figure: 1. mounting holes; 2. a housing; 3. a lower metal rubber element; 4. a screw of the lower piston cap; 5. a piston rod; 5a, a lead channel; 5b, an axial winding area; 6. an upper piston cap seal ring; 7. a sealing ring between the upper piston cover and the piston rod; 8. an upper metal rubber element; 9. a screw; 10. a gasket; 11. an end cap; 12. a wire passage outlet; 13. a seal ring between the end cover and the piston rod; 14. a seal ring between the end cap and the housing; 15. an upper piston cap; 16. an upper piston cap screw; 17. a lower piston cap; 17a, a coil accommodating groove; 17b, lead slots; 18. the lower piston cap sealing ring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-2, a semi-active vibration damping and impact resisting device based on metal rubber and magnetorheological effects comprises a housing 2 with a cavity and an end cover 10 arranged on the housing to close the cavity, wherein an upper metal rubber element 8 and a lower metal rubber element 3 are respectively arranged at the upper end and the lower end in the cavity, the upper metal rubber element and the lower metal rubber element are tightly attached to the inner wall of the cavity of the housing in the radial dimension, a piston is arranged between the upper metal rubber element and the lower metal rubber element, a gap is arranged between the periphery of the piston and the inner wall of the cavity, a piston rod 5 is vertically arranged in the middle of the upper end of the piston, the piston rod penetrates through the upper metal rubber element and the end cover and extends out of the housing, the cavity is filled with magnetorheological, 6 magnetic field coil windings are uniformly arranged on the inner circumference of the piston, the magnetic poles of adjacent magnetic field coil windings are opposite, and the leads of the magnetic field coil windings are led out through a channel in the piston rod, a sealing ring 13 is arranged between the piston and the end cover, a sealing ring 14 is arranged between the shell and the end cover, preferably a fluororubber oil seal ring is adopted, and the piston and the end cover of the piston rod are coaxial.
In the embodiment, the upper metal rubber element and the lower metal rubber element are processed into the complete sets of fittings with different densities, different wire diameters and different rigidities according to different requirements.
In this embodiment, the piston includes the pressure disk, installs upper piston lid 15, lower piston lid 17 on surface about the pressure disk respectively, and for reducing the magnetic circuit loss, the pressure disk is silicon steel material preparation, has 1 mm's shearing clearance between pressure disk and the cavity inner chamber, and piston lower extreme fixed mounting wears to establish the piston lid at pressure disk upper surface center, is equipped with sealing washer 7 between piston and the upper piston lid, the circumference equipartition has six fretworks to form six axial wire winding regions of axial equipartition in the pressure disk, and the even coiling of winding region has field coil winding on the axial, and the magnetic pole of adjacent axial winding is opposite to produce the closed best magnetic circuit that switches on, and the coil of field coil winding uses epoxy sealed to fix in the axial winding region.
In this embodiment, the coil receiving grooves 17a are formed in the areas where the upper piston cover and the lower piston cover are in contact with the upper magnetic field coil winding of the piston rod, so as to prevent the piston disc from extruding and damaging the coil during installation.
In this embodiment, for signal transmission with external electrical control equipment, lead wire groove 17b that communicates its coil accepting groove is seted up to lower piston cap upper surface, be provided with wire channel 5a that draws the coil wiring end in the axial winding magnetic field in the piston rod, wire channel lower extreme intercommunication lead wire groove, upper end intercommunication piston upper end periphery.
In this embodiment, upper piston cover, lower piston cover all are connected fixedly with the pressure disk through screw 4, 16, all are provided with sealing washer 6, 18 between upper piston cover, lower piston cover and the pressure disk, guarantee that magnetorheological suspensions can not permeate to circular telegram work area during operation, cause inefficacy or accident.
In this embodiment, the outer periphery of the end cap is fixed to the upper opening of the cavity of the housing by screws 9 and end cap screw spacers 10.
In this embodiment, the piston is provided with a connecting thread on its upper end periphery for connection to a device to be damped.
A vibration-damping and impact-resisting method comprises the following steps: fixing the shell on a test bench or vibration-isolated equipment through a mounting hole 1 at the lower end of the shell, and connecting the upper end of the piston with the vibration-isolated equipment; when the shock absorber works, the pressure plate divides the inner space of the cavity of the shell into an upper cavity and a lower cavity which are connected with each other, when impact force or tensile force is input from the outside, the upper end of the piston rod transmits acting force to the position of the pressure plate at the bottom, so that the pressure plate reciprocates between the upper metal rubber damping element and the lower metal rubber damping element to generate displacement, at the moment, the volumes of the upper cavity and the lower cavity are changed due to the compressibility of the metal rubber, and magnetorheological fluid in the upper cavity and the lower cavity has the tendency of flowing through a shearing gap; when the magnetic field coil is not electrified or no instruction signal is input, the damping force is completely generated by the metal rubber damping structure soaked in the magnetorheological fluid, when the magnetic field coil is activated according to an external given electric signal to generate a magnetic field, the magnetorheological fluid flowing upwards or downwards in the shearing gap generates a rheological effect under the action of the magnetic field to generate shearing damping force, and in addition, the magnetorheological fluid in the upper and lower metal rubber elements also generates a trend of converting to semisolid due to the effect of the magnetic field, so that the rigidity and the damping of the metal rubber elements are enhanced; the damping and the rigidity of the damper can be stably and efficiently controlled by controlling the current magnitude through the outside under the combined action of multiple effects.
This device adopts the magnetic field of fixing axial winding on the piston, has promoted the magnetic induction intensity in the shear gap, and the magnetic circuit is rational in infrastructure, adopts silicon steel material's pressure disk and casing to reduce the magnetic circuit loss, and just whole magnetic circuit main action part is restricted in the casing, and the interference killing feature is strong, can stable work under abominable operating mode.
The device adopts a scheme of the solid-liquid composite damper with metal rubber as a main part and magnetorheological effect as an auxiliary control, can generate ideal damping performance, is intelligent and controllable, can gradually develop a matched control program suitable for the running characteristics of different equipment in actual tests and production, and has wide actual application prospect.
The device uses the working form that the metal rubber damping element is soaked in the environment of the magnetorheological fluid, under the action of a magnetic field and external pressure, the magnetorheological fluid can not only pass through a shearing gap through the combined action of a capillary effect and volume change to generate shearing damping force, but also can generate rheological effect between metal wires in the metal rubber damping element when the metal rubber damping element is made of a material with higher magnetic conductivity, so that the rigidity of the metal rubber damping element is enhanced, and the vibration damping performance of the whole device is improved. The device can enable the magnetorheological fluid to generate various action forms under the same magnetic field.
The device generates main damping force by using a stable and reliable metal rubber damping structure, and the damping force generated by shearing and extruding the magneto-rheological fluid through electromagnetic control is taken as an additional part intelligently generated as required, so that the shock absorber has the characteristics of high controllability and high reliability, and can still generate certain damping force by depending on an internal metal rubber damping element even under the special condition of signal interruption, thereby being unlikely to fail integrally.
The device has simple and reliable structure except for a piston rod assembly which does not need to be opened frequently, and can manufacture metal rubber elements with different wire diameters, densities and performance attributes for replacement at any time according to actual needs due to strong interchangeability of the metal rubber elements, so that the device has wide applicability.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A semi-active vibration-damping and impact-resisting device based on metal rubber and magnetorheological effects is characterized in that: the magnetic field coil comprises a shell with a cavity and an end cover installed on the shell and used for sealing the cavity, wherein an upper metal rubber element and a lower metal rubber element are installed at the upper end and the inner lower end in the cavity respectively, a piston is arranged between the upper metal rubber element and the lower metal rubber element, a gap is reserved between the periphery of the piston and the inner wall of the cavity, a piston rod is vertically arranged in the middle of the upper end of the piston, the piston rod penetrates through the upper metal rubber element and the end cover and then extends out of the shell, the cavity is filled with magnetorheological materials, 6 magnetic field coil windings are installed on the inner circumference of the piston in an evenly distributed mode, the magnetic poles of the adjacent magnetic field coil windings are opposite, and lead wires of the magnetic field coil windings are led out through a channel inside the piston rod.
2. The semi-active vibration damping and impact resisting device based on the metal rubber and the magnetorheological effect as claimed in claim 1, wherein: the piston includes the pressure disk, installs piston cap, lower piston cap on the surface about the pressure disk respectively, and piston lower extreme fixed mounting is at pressure disk upper surface center, and the piston is worn to establish piston cap, the circumference equipartition has six axial wire winding regions that six fretwork portions formed the axial equipartition in the pressure disk, and even the coiling has field coil winding on the axial wire winding region.
3. The semi-active vibration damping and impact resisting device based on the metal rubber and the magnetorheological effect as claimed in claim 2, wherein: and coil accommodating grooves are formed in the contact areas of the upper piston cover and the lower piston cover and the upper magnetic field coil winding of the piston rod.
4. The semi-active vibration damping and impact resisting device based on metal rubber and magnetorheological effects of claim 3, wherein: the upper surface of the lower piston cover is provided with a lead groove communicated with the coil accommodating groove, a lead channel for leading out a coil wiring end of the axial winding magnetic field is arranged in the piston rod, the lower end of the lead channel is communicated with the lead groove, and the upper end of the lead channel is communicated with the periphery of the upper end of the piston.
5. The semi-active vibration damping and impact resisting device based on the metal rubber and the magnetorheological effect as claimed in claim 2, wherein: the upper piston cover and the lower piston cover are fixedly connected with the pressure plate through screws, and sealing rings are arranged between the upper piston cover and the pressure plate, and between the lower piston cover and the pressure plate.
6. The semi-active vibration damping and impact resisting device based on the metal rubber and the magnetorheological effect as claimed in claim 1, wherein: the periphery of the end cover is fixed at the upper opening part of the cavity of the shell through a screw and an end cover screw gasket.
7. The semi-active vibration damping and impact resisting device based on the metal rubber and the magnetorheological effect as claimed in claim 1, wherein: and the periphery of the upper end of the piston is provided with a connecting thread.
8. A vibration and impact reduction method adopts the semi-active vibration and impact reduction device based on the metal rubber and the magnetorheological effect as claimed in claim 1, and is characterized in that: fixing the shell on a test bench or vibration-isolated equipment, and connecting the upper end of the piston with the vibration-isolated equipment; when impact force or pulling force is input from the outside, the upper end of the piston rod transmits the acting force to the piston part, so that the piston reciprocates between the upper metal rubber damping element and the lower metal rubber damping element to generate displacement, at the moment, the volumes of the upper cavity and the lower cavity are changed due to the compressibility of the metal rubber, and the magnetorheological fluid in the magnetorheological fluid has the tendency of flowing through a shearing gap; when the magnetic field coil is not electrified or no instruction signal is input, the damping force is completely generated by the metal rubber damping structure soaked in the magnetorheological fluid, when the magnetic field coil is activated according to an external given electric signal to generate a magnetic field, the magnetorheological fluid flowing upwards or downwards in the shearing gap generates a rheological effect under the action of the magnetic field to generate shearing damping force, the magnetorheological fluid in the upper metal rubber element and the lower metal rubber element also generates a tendency of converting to semisolid due to the effect of the magnetic field, and the rigidity and the damping of the metal rubber element are enhanced; the damping and rigidity can be stably and efficiently controlled by controlling the current magnitude through the outside under the combined action of multiple effects.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111334201.1A CN113983116B (en) | 2021-11-11 | 2021-11-11 | Semi-active vibration reduction and impact resistance device based on metal rubber and magneto-rheological effect |
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| CN202111334201.1A CN113983116B (en) | 2021-11-11 | 2021-11-11 | Semi-active vibration reduction and impact resistance device based on metal rubber and magneto-rheological effect |
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| CN113983116B CN113983116B (en) | 2023-11-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571558A (en) * | 2018-07-25 | 2018-09-25 | 上海大学 | A kind of damper means that giant electro-rheological liquid damping is mixed with metal-rubber damping |
| CN208966941U (en) * | 2018-10-19 | 2019-06-11 | 西安科技大学 | Adaptive metal-rubber, magnetorheological fluid two-step buffer |
| CN110043598A (en) * | 2019-04-30 | 2019-07-23 | 中北大学 | It is a kind of based on magnetorheological clay and the compound active vibration isolation device of metal-rubber |
| CN110094449A (en) * | 2019-04-30 | 2019-08-06 | 中北大学 | A kind of low-power consumption MR mount based under shear mode |
| CN112555323A (en) * | 2021-01-12 | 2021-03-26 | 福州大学 | Metal rubber liquid pressure buffer |
| CN216279172U (en) * | 2021-11-11 | 2022-04-12 | 福州大学 | Semi-active vibration-damping and impact-resisting device |
-
2021
- 2021-11-11 CN CN202111334201.1A patent/CN113983116B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571558A (en) * | 2018-07-25 | 2018-09-25 | 上海大学 | A kind of damper means that giant electro-rheological liquid damping is mixed with metal-rubber damping |
| CN208966941U (en) * | 2018-10-19 | 2019-06-11 | 西安科技大学 | Adaptive metal-rubber, magnetorheological fluid two-step buffer |
| CN110043598A (en) * | 2019-04-30 | 2019-07-23 | 中北大学 | It is a kind of based on magnetorheological clay and the compound active vibration isolation device of metal-rubber |
| CN110094449A (en) * | 2019-04-30 | 2019-08-06 | 中北大学 | A kind of low-power consumption MR mount based under shear mode |
| CN112555323A (en) * | 2021-01-12 | 2021-03-26 | 福州大学 | Metal rubber liquid pressure buffer |
| CN216279172U (en) * | 2021-11-11 | 2022-04-12 | 福州大学 | Semi-active vibration-damping and impact-resisting device |
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| CN113983116B (en) | 2023-11-28 |
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