CN101251164A - Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force - Google Patents

Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force Download PDF

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Publication number
CN101251164A
CN101251164A CNA2008100361521A CN200810036152A CN101251164A CN 101251164 A CN101251164 A CN 101251164A CN A2008100361521 A CNA2008100361521 A CN A2008100361521A CN 200810036152 A CN200810036152 A CN 200810036152A CN 101251164 A CN101251164 A CN 101251164A
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China
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rheology elastic
magnetic
magnetic rheology
active
positioning plate
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CNA2008100361521A
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Chinese (zh)
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CN100552256C (en
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魏克湘
孟光
张文明
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上海交通大学
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Abstract

The invention relates to a magnetorheological elastomer active and passive integrated damper based on an extrusion type stress, which belongs to the structure vibration isolation and control field, wherein a magnetorheological elastomer is arranged in a magnetic conductive sleeve; the upside of the magnetorheological elastomer is connected with a joint lever; the lower part of the magnetorheological elastomer is fixedly connected with a lower positioning plate; a groove is arranged on an outer circumferential surface of the magnetic conductive sleeve positioned in a permanent magnet, embedded with a coil winding and positioned and fixed by an upper positioning plate and the lower positioning plate; the permanent magnet, the upper positioning plate, the lower positioning plate and the lower part of the joint lever are arranged in an outer magnet isolating cylinder; the upside of the outer magnet isolating cylinder is provided with an upper end closure; the upper part of the joint lever extends out from a pylome of the upper end closure and is connected with a controlled object; a pretightening spring is sleeved on the joint lever; the bottom of the outer magnet isolating cylinder is provided with a lower end closure; a sensor is fixed on the joint lever and connected with a power amplifier through a control unit module; the power amplifier is connected with the coil winding through cables. The magnetorheological elastomer active and passive integrated damper has large bearing capacity, a simple structure and can be automatically suitable for active and passive vibration control and has wide application range.

Description

Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force

Technical field

The present invention relates to a kind of vibration damper of mechanical structure technical field, specifically is a kind of magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force.

Background technique

Traditional vibration damper generally adopts General Purpose Rubber or metal spring as elastic element, utilizes rubber or the spring energy loss in movement process to suppress structural vibration.Though it is simple in structure that this type of vibration damper has, be easy to realize, advantage such as Economy and good reliability, but because its structural parameter are once setting, just can not change, the best parameter of working under a certain environmental conditions can not guarantee optimum under other environment, lack the flexibility in the control, can not adapt to the big wideband vibration occasion of extrinsic motivated excursion.

The electric/magnetic rheological material is as the controlled intellectual material of a kind of rheological properties, has continuously characteristics such as adjustable, that speed of response fast, reversibility and required energy consumption are low, and the application facet of isolating with control in structural vibration has special status.

Find through literature search prior art, in recent years, existing people utilizes the monopolizing characteristic of electric/magnetic rheological material to design active-passive integrated damper, utilize the controllable rheology characteristic of electric/magnetic rheological liquid to improve the combination property of vibration damper as Chinese patent 99810493.0, but electric/magnetic rheological liquid is the suspension material that dispersion particle and base fluid are formed, there are shortcomings such as free settling, poor stability and sealing difficulty, certain narrow limitation is arranged.And Chinese patent 200510038642.1 has proposed a kind of vibration damper that utilizes magnetic rheology elastic body, but its structural type that adopts is shearing force way, it is the effect that the magnetic rheology elastic body material is subjected to shearing force, there is the little shortcoming of bearing capacity in this structural type, should not be used for heavily loaded micro breadth oscillation structural vibrations control.

Summary of the invention

The objective of the invention is to overcome deficiency of the prior art, a kind of magnetic rheology elastic body active-passive integrated damper based on the extrusion type applied force mode is provided, its active-passive integrated vibration that can be used for heavily loaded micro breadth oscillation structure is isolated and control.

The present invention is achieved by the following technical solutions, the present invention includes: magnetic rheology elastic body, connecting rod, upper end cap, preloading spring, go up positioning plate, every magnetic urceolus, permanent magnet, coil winding, concentrating flux sleeve, positioning plate, lower end cap, power amplifier, control unit module and sensor down.Magnetic rheology elastic body places in the concentrating flux sleeve, and its top is connected with connecting rod, and the bottom connects firmly with following positioning plate; Place on the concentrating flux sleeve external peripheral surface in the permanent magnet and have groove, groove is embedded with the coil winding, and by upper and lower positioning plate positioning and fixing; The bottom of permanent magnet, last positioning plate, following positioning plate and connecting rod all places in the magnetic urceolus, top every the magnetic urceolus is provided with upper end cap, stretch out the through hole of the top of connecting rod from upper end cap and be connected with controlled device, preloading spring is enclosed within on the connecting rod, bottom every the magnetic urceolus is provided with lower end cap, be fixed with sensor on the connecting rod, sensor is connected with power amplifier by the control unit module, and power amplifier then links to each other with coil winding by elastic cable paper.

Described magnetic rheology elastic body, concentrating flux sleeve and permanent magnet are cylindric.

Described permanent magnet is nested with concentrating flux sleeve is coaxial, and magnetic rheology elastic body places in the central through bore of concentrating flux sleeve.

Described preloading spring set upper side links to each other with the upper end cap bottom, and the lower end is fixed on the outer lug boss of connecting rod bottom.

Described upward positioning plate, following positioning plate and concentrating flux sleeve are soft iron magnetic material.

Described is non-magnet material every magnetic urceolus, upper end cap, lower end cap and connecting rod.

Described magnetic rheology elastic body belongs to a kind of of magnetorheological materials, is the intelligent solid material that a kind of rigidity and damping are subjected to externally-applied magnetic field control, and its main constituent comprises as the rubber-like damping material of body material and dispersion magnetic powder particle wherein.

Described sensor, control unit module, power amplifier and coil winding are formed closed loop control system.

Described sensor is force transducer or acceleration transducer, gathers the oscillating signal of controlled device, and sends to the control unit module.

Described control unit module is according to the vibration characteristics of controlled device and the size of current in the vibration damping requirement regulating winding winding, magnetic intensity in the control concentrating flux sleeve, and then the rigidity and the damping of change magnetic rheology elastic body, like this with regard to the power consumption of may command magnetic rheology elastic body, thereby reach required active-passive integrated effectiveness in vibration suppression.

Described power amplifier is the DC electrical source amplifier, the control signal of control unit module output is carried out power amplification, for coil winding provides required driving current.

Have through hole on the described lower end cap, can whole vibration damper be installed on the desired position with screw by this through hole.

The present invention compared with prior art has the following advantages:

1, owing to adopted magnetic rheology elastic body as damping material, and closed loop control system, thereby have the active-passive integrated control function of self adaption, can improve structural vibrations and isolate and the control effect.

2, magnetic rheology elastic body bears the extrusion load effect, has improved the bearing capacity of vibration isolator greatly.

3, constitute sealed cavity at permanent magnet and the peripheral non-magnet material that adopts of upper and lower end cap, make the magnetic line of force, can improve the working efficiency of magnetic rheology elastic body in magnetic urceolus cavity, forming closed loop.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is a fundamental diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.

As shown in Figure 1, present embodiment comprises: connecting rod 1, upper end cap 2, preloading spring 3, go up positioning plate 4, magnetic rheology elastic body 5, permanent magnet 6, coil winding 7, concentrating flux sleeve 8, every magnetic urceolus 9, positioning plate 10, lower end cap 11, power amplifier 12, control unit module 13 and sensor 14 down.Magnetic rheology elastic body 5 places in the central through bore of concentrating flux sleeve 8, and its top is connected with connecting rod 1, and the bottom connects firmly with following positioning plate 10, bears the extrusion load effect.Be embedded with the coil winding by the groove on concentrating flux sleeve 8 external peripheral surfaces of last positioning plate 4 and following positioning plate 10 positioning and fixing, permanent magnet 6 and concentrating flux sleeve 8 coaxial being nested, and with last positioning plate 4, down the bottom of positioning plate 10 and connecting rod 1 places in magnetic urceolus 4.Be provided with upper end cap 2 every the top of magnetic urceolus 4, stretch out the through hole of the top of connecting rod 1 from upper end cap 2 and be connected with controlled device 15.Preloading spring 3 is enclosed within on the connecting rod 1, and its upper end links to each other with upper end cap 2 bottoms, and the lower end is fixed on the outer lug boss of connecting rod 1 bottom.Be provided with lower end cap 11 every the bottom of magnetic urceolus 4, have through hole on the lower end cap 11, can whole vibration damper be installed on the desired position with screw by this through hole.The control system of being made up of the sensor 14, control unit module 13 and the power amplifier 12 that are fixed on the connecting rod 1 links to each other with coil winding 7 by cable.

Magnetic rheology elastic body 5, concentrating flux sleeve 8 and permanent magnet 6 are cylindric.

Last positioning plate 4, following positioning plate 10 and concentrating flux sleeve 8 are soft iron magnetic material.Make by non-magnet material every magnetic urceolus 9, upper end cap 2, lower end cap 11 and 1 of connecting rod, make the magnetic line of force in the cavity of magnetic urceolus, form closed loop.

After coil winding 7 energisings, produce magnetic field in concentrating flux sleeve 8, the action of a magnetic field is on magnetic rheology elastic body 5.

Magnetic rheology elastic body 5 belongs to a kind of of magnetorheological materials, is the intelligent solid material that a kind of rigidity and damping are subjected to externally-applied magnetic field control, and its main constituent comprises as the rubber-like damping material of body material and dispersion magnetic powder particle wherein.

The working principle of vibration damper shown in Figure 2 is: the oscillating signal of controlled device 15 sends to control unit module 13 by the sensor 14 that is fixed on the connecting rod, control unit module 13 requires to output a control signal to power amplifier 12 according to the vibration characteristics and the vibration damping of controlled device 15, by the size of current in the power amplifier 12 timely adjustment coil winding 7, magnetic intensity in the control concentrating flux sleeve 8, and then the rigidity and the damping of change magnetic rheology elastic body 5, like this with regard to the power consumption of may command magnetic rheology elastic body 5, thereby reach required active-passive integrated effectiveness in vibration suppression.

Because magnetic rheology elastic body 5 places in the central through bore of concentrating flux sleeve 8, and connect firmly, bear the extrusion load effect, improved the working efficiency and the bearing capacity of vibration damper greatly with connecting rod 1 and following positioning plate 10, and simple in structure.

Claims (10)

1, a kind of magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force, comprise: magnetic rheology elastic body, connecting rod, upper end cap, preloading spring, go up positioning plate, every magnetic urceolus, permanent magnet, coil winding, concentrating flux sleeve, positioning plate, lower end cap, power amplifier, control unit module and sensor down, it is characterized in that: magnetic rheology elastic body places in the concentrating flux sleeve, its top is connected with connecting rod, and the bottom connects firmly with following positioning plate; Place on the concentrating flux sleeve external peripheral surface in the permanent magnet and have groove, groove is embedded with the coil winding, and by upper and lower positioning plate positioning and fixing; The bottom of permanent magnet, last positioning plate, following positioning plate and connecting rod all places in the magnetic urceolus, top every the magnetic urceolus is provided with upper end cap, stretch out the through hole of the top of connecting rod from upper end cap and be connected with controlled device, preloading spring is enclosed within on the connecting rod, bottom every the magnetic urceolus is provided with lower end cap, be fixed with sensor on the connecting rod, sensor is connected with power amplifier by the control unit module, and power amplifier then links to each other with coil winding by elastic cable paper.
2, the magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force according to claim 1 is characterized in that, described magnetic rheology elastic body, concentrating flux sleeve and permanent magnet are cylindric.
3, the magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force according to claim 1 and 2 is characterized in that, described permanent magnet is nested with concentrating flux sleeve is coaxial, and magnetic rheology elastic body places in the central through bore of concentrating flux sleeve.
4, the magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force according to claim 1 is characterized in that, described preloading spring set upper side links to each other with the upper end cap bottom, and the lower end is fixed on the outer lug boss of connecting rod bottom.
5, the magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force according to claim 1, it is characterized in that, described upward positioning plate, following positioning plate and concentrating flux sleeve are soft iron magnetic material, and described is non-magnet material every magnetic urceolus, upper end cap, lower end cap and connecting rod.
6, the magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force according to claim 1 is characterized in that, described sensor, control unit module, power amplifier and coil winding are formed closed loop control system.
7, according to claim 1 or 6 described magnetic rheology elastic body active-passive integrated dampers, it is characterized in that described sensor is force transducer or acceleration transducer, gather the oscillating signal of controlled device, and send to the control unit module based on extrusion type applied force.
8, according to claim 1 or 6 described magnetic rheology elastic body active-passive integrated dampers based on extrusion type applied force, it is characterized in that, described control unit module is according to the vibration characteristics of controlled device and the size of current in the vibration damping requirement regulating winding winding, magnetic intensity in the control concentrating flux sleeve, and then the rigidity and the damping of change magnetic rheology elastic body.
9, according to claim 1 or 6 described magnetic rheology elastic body active-passive integrated dampers based on extrusion type applied force, it is characterized in that, described power amplifier is the DC electrical source amplifier, the control signal of control unit module output is carried out power amplification, for coil winding provides required driving current.
10, according to the magnetic rheology elastic body active-passive integrated damper of claim 1, it is characterized in that, have through hole on the described lower end cap, whole vibration damper is installed on the desired position by this through hole based on extrusion type applied force.
CNB2008100361521A 2008-04-17 2008-04-17 Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force CN100552256C (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
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CN102168738A (en) * 2011-05-11 2011-08-31 北京航空航天大学 Six-degree-of-freedom active and passive dynamic vibration-absorbing device
CN102248216A (en) * 2011-07-01 2011-11-23 黑龙江科技学院 Vibration inhibiting device in axial-flow type impeller processing
CN102306997A (en) * 2011-09-06 2012-01-04 中国科学院长春光学精密机械与物理研究所 Micro-displacement actuator for shear mode magnetorheological elastomer
CN102437709A (en) * 2011-09-06 2012-05-02 中国科学院长春光学精密机械与物理研究所 Squeezed micro-displacement actuator of magnetorheological elastomer
CN102705431A (en) * 2012-05-31 2012-10-03 中国科学院长春光学精密机械与物理研究所 Angular-displacement-free active and passive combined vibration reduction system and method
CN102829112A (en) * 2012-09-21 2012-12-19 重庆大学 Porous magnetorheological elastomer and buffer device
WO2013064621A1 (en) * 2011-11-04 2013-05-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Adaptive locking and releasing device and use thereof for the controlled blocking and releasing of movable components
CN103273644A (en) * 2013-06-20 2013-09-04 哈尔滨工业大学 Plank soft mode forming device and method based on magnetorheological elastomers
CN103615486A (en) * 2013-11-01 2014-03-05 谭苹 Double-rod hanging-type damper
CN103615493A (en) * 2013-12-03 2014-03-05 谭晓婧 Multiple-extended-rod suspension type damper
CN103615492A (en) * 2013-11-29 2014-03-05 重庆材料研究院有限公司 Suspension type magneto-rheological damper and system
CN103681101A (en) * 2012-09-26 2014-03-26 江苏海纳纳米技术开发有限公司 A magnetic switching device with a magneto-rheological elastomer
CN103821835A (en) * 2014-02-26 2014-05-28 河南工业大学 Controllable random variable stiffness bellows coupling and method thereof
CN104249618A (en) * 2014-09-23 2014-12-31 安徽微威胶件集团有限公司 Semi-active control type engine hydraulic mount based on magneto-rheological elastomer
CN104265826A (en) * 2014-09-11 2015-01-07 合肥工业大学 Bidirectional regulation type multilayer magneto-rheological elastomer shock absorber
CN104295657A (en) * 2013-07-19 2015-01-21 特瑞堡威巴克公司 Vibration absorber and vibration absorber assembly
US9283103B2 (en) 2011-07-21 2016-03-15 Clifford T. Solomon Magnetorheological medical brace
CN105626757A (en) * 2016-03-10 2016-06-01 孙美娜 Magnetorheological fluid shock absorption buffering device under extrusion mode
CN106321702A (en) * 2016-10-27 2017-01-11 中国海洋大学 Compression-shear mixed multi-layer magnetorheological elastomer shock absorber
CN106438830A (en) * 2016-09-07 2017-02-22 武汉源海博创科技有限公司 Electromagnetic type active and passive integrated vibration isolator
CN107023608A (en) * 2016-01-29 2017-08-08 本田技研工业株式会社 Eigenvalue changeable type dynamic vibration absorber and eigenvalue changeable type antihunting device
CN109356959A (en) * 2018-10-22 2019-02-19 华中科技大学 A kind of self-adapted remote Active vibration-reducing system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168738B (en) * 2011-05-11 2012-11-21 北京航空航天大学 Six-degree-of-freedom active and passive dynamic vibration-absorbing device
CN102168738A (en) * 2011-05-11 2011-08-31 北京航空航天大学 Six-degree-of-freedom active and passive dynamic vibration-absorbing device
CN102248216A (en) * 2011-07-01 2011-11-23 黑龙江科技学院 Vibration inhibiting device in axial-flow type impeller processing
US9700451B2 (en) 2011-07-21 2017-07-11 Clifford T. Solomon Magnetorheological medical brace
US9283103B2 (en) 2011-07-21 2016-03-15 Clifford T. Solomon Magnetorheological medical brace
US10667937B2 (en) 2011-07-21 2020-06-02 Clifford T. Solomon Magnetorheological medical brace
CN102306997B (en) * 2011-09-06 2012-12-12 中国科学院长春光学精密机械与物理研究所 Micro-displacement actuator for shear mode magnetorheological elastomer
CN102306997A (en) * 2011-09-06 2012-01-04 中国科学院长春光学精密机械与物理研究所 Micro-displacement actuator for shear mode magnetorheological elastomer
CN102437709A (en) * 2011-09-06 2012-05-02 中国科学院长春光学精密机械与物理研究所 Squeezed micro-displacement actuator of magnetorheological elastomer
WO2013064621A1 (en) * 2011-11-04 2013-05-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Adaptive locking and releasing device and use thereof for the controlled blocking and releasing of movable components
CN102705431B (en) * 2012-05-31 2014-12-24 中国科学院长春光学精密机械与物理研究所 Angular-displacement-free active and passive combined vibration reduction system and method
CN102705431A (en) * 2012-05-31 2012-10-03 中国科学院长春光学精密机械与物理研究所 Angular-displacement-free active and passive combined vibration reduction system and method
CN102829112A (en) * 2012-09-21 2012-12-19 重庆大学 Porous magnetorheological elastomer and buffer device
CN103681101A (en) * 2012-09-26 2014-03-26 江苏海纳纳米技术开发有限公司 A magnetic switching device with a magneto-rheological elastomer
CN103273644A (en) * 2013-06-20 2013-09-04 哈尔滨工业大学 Plank soft mode forming device and method based on magnetorheological elastomers
CN103273644B (en) * 2013-06-20 2015-06-24 哈尔滨工业大学 Plank soft mode forming device and method based on magnetorheological elastomers
US10150500B2 (en) 2013-07-19 2018-12-11 Vibracoustic Gmbh Vibration absorber and vibration absorber assembly
CN104295657A (en) * 2013-07-19 2015-01-21 特瑞堡威巴克公司 Vibration absorber and vibration absorber assembly
CN103615486A (en) * 2013-11-01 2014-03-05 谭苹 Double-rod hanging-type damper
CN103615492A (en) * 2013-11-29 2014-03-05 重庆材料研究院有限公司 Suspension type magneto-rheological damper and system
CN103615492B (en) * 2013-11-29 2016-05-18 重庆材料研究院有限公司 Suspension type MR damper and system
CN103615493A (en) * 2013-12-03 2014-03-05 谭晓婧 Multiple-extended-rod suspension type damper
CN103821835A (en) * 2014-02-26 2014-05-28 河南工业大学 Controllable random variable stiffness bellows coupling and method thereof
CN104265826A (en) * 2014-09-11 2015-01-07 合肥工业大学 Bidirectional regulation type multilayer magneto-rheological elastomer shock absorber
CN104249618A (en) * 2014-09-23 2014-12-31 安徽微威胶件集团有限公司 Semi-active control type engine hydraulic mount based on magneto-rheological elastomer
CN107023608A (en) * 2016-01-29 2017-08-08 本田技研工业株式会社 Eigenvalue changeable type dynamic vibration absorber and eigenvalue changeable type antihunting device
CN107023608B (en) * 2016-01-29 2019-10-18 本田技研工业株式会社 Eigenvalue changeable type dynamic vibration absorber and eigenvalue changeable type antihunting device
CN105626757A (en) * 2016-03-10 2016-06-01 孙美娜 Magnetorheological fluid shock absorption buffering device under extrusion mode
CN106438830A (en) * 2016-09-07 2017-02-22 武汉源海博创科技有限公司 Electromagnetic type active and passive integrated vibration isolator
CN106438830B (en) * 2016-09-07 2018-12-11 武汉源海博创科技有限公司 Electromagnetic type active-passive integratedization vibration isolator
CN106321702A (en) * 2016-10-27 2017-01-11 中国海洋大学 Compression-shear mixed multi-layer magnetorheological elastomer shock absorber
CN109356959A (en) * 2018-10-22 2019-02-19 华中科技大学 A kind of self-adapted remote Active vibration-reducing system

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