CN104315071A - Novel intelligent shock absorber integrating multilayer magnetorheological elastomers with magnetorheological damper - Google Patents

Novel intelligent shock absorber integrating multilayer magnetorheological elastomers with magnetorheological damper Download PDF

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Publication number
CN104315071A
CN104315071A CN201410421507.4A CN201410421507A CN104315071A CN 104315071 A CN104315071 A CN 104315071A CN 201410421507 A CN201410421507 A CN 201410421507A CN 104315071 A CN104315071 A CN 104315071A
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CN
China
Prior art keywords
damper
cylinder barrel
vibration damper
rheology elastic
magnetorheological
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CN201410421507.4A
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Chinese (zh)
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CN104315071B (en
Inventor
邓华夏
张进
周来军
于连栋
李卫华
孙帅帅
王君
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合肥工业大学
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/53Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535Magnetorheological [MR] fluid dampers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/3207Constructional features
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00Special physical effects, e.g. nature of damping effects
    • F16F2222/06Magnetic or electromagnetic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2224/00Materials; Material properties
    • F16F2224/04Fluids
    • F16F2224/045Fluids magnetorheological
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/06Stiffness
    • F16F2228/066Variable stiffness

Abstract

The invention discloses a novel intelligent shock absorber integrating multilayer magnetorheological elastomers with a magnetorheological damper. The shock absorber comprises the magnetorheological damper and a variable stiffness device comprising the multilayer annular magnetorheological elastomers and magnetorheological elastomer magnet exciting coil windings mounted between the multilayer annular magnetorheological elastomers respectively, wherein the magnetorheological damper comprises a cylinder barrel; the cylinder barrel is connected to the top end of the shock absorber through a spring; a piston plate is arranged in the cylinder barrel; a piston rod is fixedly connected to the lower side of the piston plate; the other end of the piston rod penetrates out of the cylinder barrel and is fixed at the bottom end of the shock absorber; a magnetorheological damper magnet exciting coil winding is wound on the side wall of the piston plate; the cylinder barrel is filled with a magnetorheological fluid; a damping device is connected with the variable stiffness device in parallel or in series. Due to the integration of the multilayer magnetorheological elastomers and the magnetorheological damper, the stiffness and damping change range of the shock absorber is relatively large, a relatively good shock absorption effect can be achieved, and the shock absorber is compact in structure.

Description

The novel intelligent vibration damper of integrated multi-layer magnetic rheology elastic body and MR damper

Technical field

The present invention relates to vibration damper and technical field of intelligence, particularly relate to the intelligent vibration damping device of a kind of integrated multi-layer magnetic rheology elastic body and MR damper.

Background technique

Vibration can cause series of problems, and such as vibration causes the fracture failure of component of machine, the fracture of bridge is collapsed, the deterioration etc. of the working environment of workers.Given this in the industries such as space flight, aviation, military project, firearms, automobile, building, bridge, railway, various vibration damper has been used to carry out vibration damping energy dissipating.The passive type vibration damper be made up of the spring of rigidity of fixation and the damper of fixing damping becomes the main vibration damping form in vibration damping field.But along with people are to the raising of damping requirements, passive type vibration damper can not meet the demand of people.Particularly for the vibration damping field that ask for something is higher, develop a kind of new and effective vibration damper more and more urgent.

Relative to passive type vibration damper, active and semi-active type vibration damper is two kinds of main vibration damping forms, but fails to be used widely because active vibration damping device needs larger control force and the input of more energy and very complicated control algorithm usually.In addition, because active damper has energy to be incorporated in the middle of control system, the stability problem of system is more complicated by what become, and this also limits the application of active damper in vibration damping field to a certain extent.

In recent years, semi-active type vibration damper because of its consumed energy less, and to pay close attention to widely to the vibration damping quality and obtaining improving system by the parameter that changes self again.Semi-active damper is realized by the damper of adaptive damping usually, and the damper of adaptive damping is mainly comprised and realizes the damper of damping change by changing oil through diameter and changed damper two kinds of forms of damping by the viscosity of the damp liquid changing damper inside.But variable orifice footpath type damper needs more tiny moving parts to form this damper, these tiny component require again that accuracy of manufacturing is higher and maintenance cost is higher while removable component increase also reduce the reliability of damper.So the damper of this type can not satisfy the demands completely.And variable viscosity type damper is not because increase the moving member of damper and convenient processing and manufacture slowly obtains and pays close attention to widely.Wherein magnetorheological and ER effect is two kinds of controllable liquids that semi-active damper device is the most conventional, but electrorheological fluid limits its application because of needing high voltage to realize.Compare, magnetic flow liquid only needs lower voltage just can realize the change of liquid viscosity, so be more suitable for semi-active damper.Also because this reason, magnetic current modification semi-active damper device obtains to be applied more and more widely.As Chinese patent (application number: 200710060655.8) provide a kind of MR damper that can produce larger damping force; Chinese patent (application number: 200410014703.6) provide a kind of multistage magnetic rheopectic damper.Another kind of half active vibration damper is the variable rigidity shock absorber based on stiffness variable material.Magnetic rheology elastic body have also been obtained better application as a kind of intellectual material of variable rigidity in vibration damping field, as Chinese patent (200510094882.3) gives the application of magnetic rheology elastic body in vibration damping.

But, be only confined to the variable or variable rigidity of damping with first active vibration damper, and magnetic rheology elastic body and MR damper be not designed in the middle of vibration damper simultaneously.Given this, this patent will utilize MR damper and magnetic rheology elastic body to realize the novel intelligent vibration damper of a kind of integrated magnetic rheology elastic body and MR damper to adapt to the requirements at the higher level to vibration damping.

Summary of the invention

The present invention seeks to the intelligent vibration damper that the better stiffness variable adaptive damping of a kind of effectiveness in vibration suppression is provided on the basis of existing vibration damper.

The present invention is achieved by the following technical solutions:

The novel intelligent vibration damper of a kind of integrated multi-layer magnetic rheology elastic body and MR damper, comprise MR damper, it is characterized in that: described MR damper comprises cylinder barrel, described cylinder barrel top is positioned at vibration damper clutch release slave cylinder, described vibration damper clutch release slave cylinder is between vibration damper top and bottom, described cylinder barrel is connected to vibration damper clutch release slave cylinder top by spring, described cylinder barrel inside is provided with piston plate, piston rod is fixedly connected with on the downside of described piston plate, the described piston rod the other end to pass bottom cylinder barrel and is fixed on vibration damper clutch release slave cylinder bottom, outside described cylinder barrel, surrounding is fixedly connected with resistance magnetosheath, the sidewall of described piston plate is also wound with field coil winding, described cylinder barrel inside is filled with magnetic flow liquid, described clutch release slave cylinder both sides are provided with and are spaced magnetic rheology elastic body, between described magnetic rheology elastic body, field coil is installed, described magnetic rheology elastic body and field coil composition variable stiffness apparatus, described variable stiffness apparatus two ends are fixedly linked with the top of vibration damper and bottom screw respectively.

The novel intelligent vibration damper of a kind of integrated multi-layer magnetic rheology elastic body and MR damper, comprise MR damper, it is characterized in that: described MR damper comprises cylinder barrel, described cylinder barrel top is positioned at vibration damper clutch release slave cylinder, described vibration damper clutch release slave cylinder is between vibration damper top and bottom, described cylinder barrel inside is provided with piston plate, piston rod is fixedly connected with on the downside of described piston plate, the described piston rod the other end to pass bottom cylinder barrel and is fixed on vibration damper clutch release slave cylinder bottom, outside described cylinder barrel, surrounding is fixedly connected with resistance magnetosheath, the sidewall of described piston plate is also wound with field coil winding, described cylinder barrel inside is filled with magnetic flow liquid, the described piston rod be in outside cylinder barrel is provided with two rows and is spaced magnetic rheology elastic body, between described magnetic rheology elastic body, field coil is installed, described magnetic rheology elastic body and field coil composition variable stiffness apparatus, cylinder barrel bottom described in described variable stiffness apparatus upper end screw connects, on the downside of described variable stiffness apparatus, screw connects vibration damper bottom.

The MR damper realizing mutative damp can be single-stage or multistage, singly go out rod-type or two go out dry type, bypass type or internal passage type etc. multi-form.Described variable stiffness apparatus comprises multilayer magnetic rheology elastic body structure and comprises the multilayer magnetic rheology elastic body and many group toroid windings that are designed to ring-type, and described ring-type magnetic rheology elastic body cross section is T font, also can be rectangle or other shapes.Described many group coil winding are arranged between multilayer magnetic rheology elastic body respectively, in order to excitation field, change magnetic rheology elastic body rigidity.

Advantage of the present invention is:

1, the present invention by MR damper and magnetic rheology elastic body Integrated design in a vibration damper.Can be changed the damping of vibration damper by the electric current controlling MR damper coil, the field current simultaneously by controlling magnetic rheology elastic body can change the rigidity of vibration damper, thus achieves the novel intelligent vibration damper of stiffness variable adaptive damping.

2, the present invention adopts multi-layer magnetic magnetorheological elastomer structure, effectively can increase the displacement stroke of magnetic rheology elastic body, better and MR damper cooperating.

3, this invention project organization is compact, saves space, and structure is simple simultaneously, has better adaptability.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation that magnetic rheology elastic body is arranged on magneto-rheological vibration damper piston rod periphery and realizes connecting with MR damper;

Wherein: 1 is multilayer magnetic rheology elastic body, 2 is common spring, and 3 is magnetic rheology elastic body field coil winding, 4 is magnetic flow liquid, and 5 is piston plate, and 6 is MR damper field coil winding, 7 is variable stiffness apparatus, 8 is MR damper, and 9 is piston rod, and 10 is cylinder barrel, 11 is oscillating signal 1,12 is controller, and 13 is power source generator, and 14 is resistance magnetic sleeve.

Embodiment

embodiment 1

As shown in Figure 1, the novel intelligent vibration damper of a kind of integrated multi-layer magnetic rheology elastic body and MR damper, comprise mutative damp device MR damper 8, described MR damper comprises cylinder barrel 10, described cylinder barrel 10 top is positioned at vibration damper clutch release slave cylinder, described clutch release slave cylinder is between vibration damper top and bottom, described cylinder barrel 10 is connected to vibration damper clutch release slave cylinder top by spring, described cylinder barrel inside is provided with piston plate 5, piston rod 9 is fixedly connected with on the downside of described piston plate, the described piston rod the other end to pass bottom cylinder barrel and is fixed on vibration damper clutch release slave cylinder bottom, outside described cylinder barrel, surrounding is fixedly connected with resistance magnetosheath 14, the sidewall of described piston plate is also wound with MR damper field coil winding 6, described cylinder barrel inside is filled with magnetic flow liquid 4, also comprise variable stiffness apparatus 7, described variable stiffness apparatus comprises multilayer ring-type magnetic rheology elastic body 1 and is arranged on the magnetic rheology elastic body field coil winding 3 between multilayer ring-type magnetic rheology elastic body respectively, when described damping device and variable stiffness apparatus parallel connection, described variable stiffness apparatus is looped around outside described clutch release slave cylinder, and described variable stiffness apparatus and vibration damper top and bottom respectively screw are fixedly connected with, the cross section of described ring-type magnetic rheology elastic body is T font, comprises extrusion shearing two kinds of mode of operations, can better play the effect of vibration damping.

Described variable stiffness apparatus and mutative damp device adopt the mode of separating excitation and controlling respectively.The mutual interference effect control effects in magnetic field that the magnetic field produced for preventing magnetic rheology elastic body field coil winding 3 and MR damper field coil winding 6 produce, is fixedly connected with resistance magnetosheath 14 in the upper end of the cylinder barrel of MR damper and periphery.

The control flow of vibration damper is that the oscillating signal 11 of vibration control object is collected by sensor, be input in controller 12 after vibration signals collecting completes, controller is through vibration analysis, control signal is produced according to required vibration damping demand, and control signal is delivered to power source generator 13, power source generator determines according to control signal the size being applied to electric current in magnetic rheology elastic body and MR damper respectively.

embodiment 2

As shown in Figure 2, the novel intelligent vibration damper of a kind of integrated multi-layer magnetic rheology elastic body and MR damper, comprise mutative damp device MR damper 8, described MR damper comprises cylinder barrel 10, described cylinder barrel 10 top is positioned at vibration damper clutch release slave cylinder, described clutch release slave cylinder is between vibration damper top and bottom, described cylinder barrel 10 is connected to vibration damper clutch release slave cylinder top by spring, described cylinder barrel inside is provided with piston plate 5, piston rod 9 is fixedly connected with on the downside of described piston plate, the described piston rod the other end to pass bottom cylinder barrel and is fixed on vibration damper clutch release slave cylinder bottom, outside described cylinder barrel, surrounding is fixedly connected with resistance magnetosheath 14, the sidewall of described piston plate is also wound with MR damper field coil winding 6, described cylinder barrel inside is filled with magnetic flow liquid 4, described variable stiffness apparatus 7 can be arranged on the periphery of MR damper piston rod 9, the upper end of described variable stiffness apparatus 7 connects firmly on MR damper cylinder barrel, lower end is connected with the other end of vibration damper, realizes the series design of MR damper and magnetic rheology elastic body.Described MR damper cylinder barrel is connected with vibration damper one end by screw, simultaneously the lower surface of cylinder barrel and side be provided with resistance magnetosheath in order to the magnetic field of eliminating magnetic rheology elastic body field coil and producing and MR damper field coil produce the mutual interference in magnetic field.This cascaded structure can produce different effectiveness in vibration suppression to the oscillating signal of different frequency, is applicable to some particular application.

Claims (3)

1. the novel intelligent vibration damper of an integrated multi-layer magnetic rheology elastic body and MR damper, comprise MR damper, it is characterized in that: described MR damper comprises cylinder barrel, described cylinder barrel top is positioned at vibration damper clutch release slave cylinder, described vibration damper clutch release slave cylinder is between vibration damper top and bottom, described cylinder barrel is connected to vibration damper clutch release slave cylinder top by spring, described cylinder barrel inside is provided with piston plate, piston rod is fixedly connected with on the downside of described piston plate, the described piston rod the other end to pass bottom cylinder barrel and is fixed on vibration damper clutch release slave cylinder bottom, outside described cylinder barrel, surrounding is fixedly connected with resistance magnetosheath, the sidewall of described piston plate is also wound with field coil winding, described cylinder barrel inside is filled with magnetic flow liquid, described clutch release slave cylinder both sides are provided with and are spaced magnetic rheology elastic body, between described magnetic rheology elastic body, field coil is installed, described magnetic rheology elastic body and field coil composition variable stiffness apparatus, described variable stiffness apparatus two ends are fixedly linked with the top of vibration damper and bottom screw respectively.
2. the novel intelligent vibration damper of an integrated multi-layer magnetic rheology elastic body and MR damper, comprise MR damper, it is characterized in that: described MR damper comprises cylinder barrel, described cylinder barrel top is positioned at vibration damper clutch release slave cylinder, described vibration damper clutch release slave cylinder is between vibration damper top and bottom, described cylinder barrel inside is provided with piston plate, piston rod is fixedly connected with on the downside of described piston plate, the described piston rod the other end to pass bottom cylinder barrel and is fixed on vibration damper clutch release slave cylinder bottom, outside described cylinder barrel, surrounding is fixedly connected with resistance magnetosheath, the sidewall of described piston plate is also wound with field coil winding, described cylinder barrel inside is filled with magnetic flow liquid, the described piston rod be in outside cylinder barrel is provided with two rows and is spaced magnetic rheology elastic body, between described magnetic rheology elastic body, field coil is installed, described magnetic rheology elastic body and field coil composition variable stiffness apparatus, cylinder barrel bottom described in described variable stiffness apparatus upper end screw connects, on the downside of described variable stiffness apparatus, screw connects vibration damper bottom.
3. a kind of integrated magnetic rheology elastic body according to claims 1 or claims 2 and the novel intelligent vibration damper of MR damper, it is characterized in that: described magnetic rheology elastic body is multilayer ring-type magnetic rheology elastic body, its cross section is T font, rectangle or other shapes.
CN201410421507.4A 2014-08-25 2014-08-25 The novel intelligent vibroshock of integrated multi-layer magnetic rheology elastic body and MR damper CN104315071B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105020324A (en) * 2015-07-13 2015-11-04 涂建维 Variable stiffness and variable friction damper based on magnetorheological elastomer and piezoelectric material
CN105485241A (en) * 2015-12-31 2016-04-13 浙江科技学院 Magnetorheological elastomer shock absorber
CN106402234A (en) * 2016-11-08 2017-02-15 四川工程职业技术学院 Magnetorheological elastomer shock absorber
CN106838106A (en) * 2017-03-21 2017-06-13 哈尔滨工程大学 A kind of novel magnetorheological fluid damper
CN107269759A (en) * 2017-07-13 2017-10-20 合肥工业大学 A kind of Variable Stiffness Vibration Isolator for electronic equipment vibration isolation
CN109307037A (en) * 2018-11-18 2019-02-05 刘山平 A kind of car shock mitigation system
CN109372931A (en) * 2017-02-27 2019-02-22 株式会社万都 Damping force variable shock absorber

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US20020130003A1 (en) * 2001-03-16 2002-09-19 Delphi Technologies, Inc. Magnetorheological dampers with improved wear resistance
JP2004270719A (en) * 2003-03-05 2004-09-30 Bando Chem Ind Ltd Adjustable damping force type damper
CN101126430A (en) * 2007-09-18 2008-02-20 重庆大学 Parallel type vibration isolation buffer based on magneto-rheological technology
CN101249820A (en) * 2008-04-11 2008-08-27 重庆大学 Automobile collision buffering device based on magnetic converting technique and buffering energy-absorbing method
CN101324257A (en) * 2008-07-11 2008-12-17 重庆大学 Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020130003A1 (en) * 2001-03-16 2002-09-19 Delphi Technologies, Inc. Magnetorheological dampers with improved wear resistance
JP2004270719A (en) * 2003-03-05 2004-09-30 Bando Chem Ind Ltd Adjustable damping force type damper
CN101126430A (en) * 2007-09-18 2008-02-20 重庆大学 Parallel type vibration isolation buffer based on magneto-rheological technology
CN101249820A (en) * 2008-04-11 2008-08-27 重庆大学 Automobile collision buffering device based on magnetic converting technique and buffering energy-absorbing method
CN101324257A (en) * 2008-07-11 2008-12-17 重庆大学 Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105020324A (en) * 2015-07-13 2015-11-04 涂建维 Variable stiffness and variable friction damper based on magnetorheological elastomer and piezoelectric material
CN105485241A (en) * 2015-12-31 2016-04-13 浙江科技学院 Magnetorheological elastomer shock absorber
CN106402234A (en) * 2016-11-08 2017-02-15 四川工程职业技术学院 Magnetorheological elastomer shock absorber
CN109372931A (en) * 2017-02-27 2019-02-22 株式会社万都 Damping force variable shock absorber
CN106838106A (en) * 2017-03-21 2017-06-13 哈尔滨工程大学 A kind of novel magnetorheological fluid damper
CN106838106B (en) * 2017-03-21 2019-01-15 哈尔滨工程大学 A kind of novel magnetorheological fluid damper
CN107269759A (en) * 2017-07-13 2017-10-20 合肥工业大学 A kind of Variable Stiffness Vibration Isolator for electronic equipment vibration isolation
CN107269759B (en) * 2017-07-13 2019-12-03 合肥工业大学 A kind of Variable Stiffness Vibration Isolator for electronic equipment vibration isolation
CN109307037A (en) * 2018-11-18 2019-02-05 刘山平 A kind of car shock mitigation system
CN109307037B (en) * 2018-11-18 2020-05-29 林飘飘 Automobile shock absorption system

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