CN101813153A - Active and passive integrated vibration absorber based on electrorheological elastomer - Google Patents
Active and passive integrated vibration absorber based on electrorheological elastomer Download PDFInfo
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- CN101813153A CN101813153A CN201010109697A CN201010109697A CN101813153A CN 101813153 A CN101813153 A CN 101813153A CN 201010109697 A CN201010109697 A CN 201010109697A CN 201010109697 A CN201010109697 A CN 201010109697A CN 101813153 A CN101813153 A CN 101813153A
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Abstract
The invention relates to an active and passive integrated vibration absorber based on an electrorheological elastomer, which comprises a shell, wherein a base of the shell is closed, the upper end of the shell is provided with an end cover, the inner part of the shell is provided with a piston, the upper end of the piston is fixedly connected with a connecting rod, the connecting rod extends out of a through hole of the end cover and is fixedly connected with a controlled objected; a sleeve is arranged in the shell, the shell is fixed with the sleeve through interference fit, the electrorheological elastomer is arranged between the sleeve and the piston, and the electrorheological elastomer is fixedly connected between the sleeve and the piston; a power lead is led out of a small hole of the end cover and is used for connecting the piston and the sleeve to an external high-voltage control power supply; a sensor is arranged on the controlled object and is also connected to the external high-voltage control power supply; the shell, the end cover and the connecting rod are made of insulating materials, and the sleeve and the piston are made of conductive materials with better electric conduction property. The invention has simple structure, stable property and little control energy consumption.
Description
Technical field
The invention belongs to structural vibration isolation and control technique field, be specifically related to a kind of based on the elastomeric active-passive integrated damper of electrorheological.
Background technique
Damping technology commonly used at present mainly contains passive vibration isolation and active damping.Passive vibration isolation is to serially add the direct transmission that subtense angle that elastic element, damping member even an inertance element and they constitute comes separating vibration between vibration source and controll plant, thereby weaken or the transmission of isolated vibrational energy, realize the purpose of vibration and noise reducing.The advantage of passive vibration isolation device be simple in structure, be easy to realization, good economy performance, reliability height, do not need to consume additional-energy, have general applicability.But the structural parameter of this method just can not change once setting.The best parameter of working under a certain environmental conditions can not guarantee optimum under other environment, lack the flexibility in the control.And because the restriction of stability, passive vibration isolation also can't be decayed to low-frequency vibration.In order to overcome above-mentioned shortcoming, people have proposed the notion of active damping.
Active damping is on the basis of passive vibration isolation, and parallel connection or tandem energy produce the actuator that meets certain requirements, and perhaps replaces the part or all of element of passive vibration isolation device with actuator, by the motion of suitable control actuator, reaches the purpose of vibration damping.Active damping can be divided into complete ACTIVE CONTROL and active-passive integrated control by form.But since fully the structure of active vibration control complicated, need to consume a large amount of energy, thereby limited its application in engineering reality.
Electrorheological fluid (Electrorheological Fluids) is as the controlled intellectual material of a kind of rheological properties, and under effect of electric field, continuous, rapid and reversible variation can take place its physical property.Contain the intelligence structure of electrorheological fluid owing to can under the effect of extra electric field, reversibly change the damping or the rigidity of structure fast, and advantage such as have that speed of response is fast, the work energy consumption is low and control mode is simple has obtained extensive concern in the active-passive integrated control of structural vibrations.In recent years, existing people utilizes the characteristic of electrorheological fluid to design vibration damper, utilize the apparent viscosity of electrorheological fluid can be subjected to the characteristics of extra electric field intensity control to regulate the damping of vibration damper as Chinese patent 200610127952.5, to realize half ACTIVE CONTROL of vehicle suspension system.But employed electrorheological fluid generally is to be scattered in the suspension material of making in the carrier fluid by solid particle.In use there are shortcomings such as free settling, poor stability and sealing difficulty in this class material, and certain narrow limitation is arranged.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of, make its active-passive integrated control that can be used for structural vibration based on the elastomeric active-passive integrated damper of electrorheological, and can control easy, stable performance.
The present invention realizes above-mentioned purpose by the following technical solutions: should comprise housing based on the elastomeric active-passive integrated damper of electrorheological, and the base sealing of housing, the upper end of housing is provided with end cap; The inside of housing is provided with piston, and the upper end of piston is fixed with a connecting rod, and connecting rod stretches out from the through hole of end cap and is connected with controlled device; Be provided with sleeve in the enclosure, fix by interference fit between shell and the sleeve, be provided with the electrorheological elastomer between sleeve and the piston, the electrorheological elastomer is fixed between sleeve and the piston; Power lead is drawn from the aperture of end cap, and piston and sleeve are connected on the external high pressure control power supply, and sensor is installed on the controlled device, and sensor also is connected on the external high pressure control power supply; Described housing, end cap and connecting rod are insulating material and make, and sleeve and piston are electric conductivity favorable conductive material.
Described electrorheological elastomer is a kind of novel er material, be the intelligent solid material that a kind of rigidity and damping are subjected to extra electric field control, its main constituent comprises as the rubber-like damping material of body material and disperses high-k electricity wherein to lead particle.
The electrorheological elastomer that the present invention adopts is to lead particle by high molecular polymer (as rubber or resin etc.) and polarizable electricity to solidify under the extra electric field effect and form.When applying External Electrical Field, the electricity of elastomer inside is led particle after the direction of an electric field polarization, can produce interaction force, and elasticity, storage shear modulus and the fissipation factor etc. of material are changed, and macro manifestations is damping and controllable stiffness.The electrorheological elastomer has kept er material rigidity, the controlled characteristic of damping in shortcomings such as the free settling that has overcome existing electrorheological fluid, poor stability, have electrorheological fluid and elastomeric advantage concurrently.
The present invention compared with prior art has the following advantages:
(1) owing to adopted the electrorheological elastomer, have the continuous adjustability of damping and rigidity as damping material, but the active-passive integrated control function of implementation structure vibration.
(2) vibration damper utilizes in the electrorheological elastomer particle not vacillate, and the characteristics that elastomer can not flow have improved the stability of vibration damper, and long-term the use can not reduced effectiveness in vibration suppression yet.
(3) electrorheological elastomer vibration damper need not seal arrangement, and structure is very simple.
(4) controlling method of electrorheological elastomer vibration damper is simple, and the control energy consumption is very little.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the working principle structural representation of Fig. 1.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, be the structural representation of embodiments of the invention, as can be seen from Fig. 1, this vibration damper comprises housing 3, the base sealing of housing 3, its upper end is provided with end cap 2; The inside of housing 3 is provided with piston 5, and the upper end of piston 5 is by the connecting rod 1 that has been threaded, and connecting rod 1 stretches out from the through hole of end cap 2.Be provided with sleeve 4 in shell 3, fix by interference fit between shell 3 and the sleeve 4, be provided with electrorheological elastomer 6 between sleeve 4 and the piston 5, electrorheological elastomer 6 is fixed between sleeve 4 and the piston 5 by viscose glue; Power lead 7 connects piston 5 and sleeve 4 and draws from the aperture of end cap 2.Housing 3, end cap 2 and connecting rod 1 are insulating material and make, and sleeve 4 and piston 5 are that the good copper material of electric conductivity is made.Shell 3, electrorheological elastomer 6, sleeve 4 and piston 5 are cylindrical, and the motion by piston 5 makes electrorheological elastomer 6 bear shear loads.After power lead 7 energisings, produce electric field between sleeve 4 and piston 5, electric field action is on electrorheological elastomer 6.Electrorheological elastomer 6 belongs to a kind of novel er material, be the intelligent solid material that a kind of rigidity and damping can be subjected to extra electric field control, its main constituent comprises as the rubber-like damping material of body material and disperses high-k electricity wherein to lead particle.
Referring to Fig. 2, connecting rod 1 stretches out the back and is connected with controlled device 10 from the through hole of end cap 2.Be also shown in from figure, power lead 7 is connected on the external high pressure control power supply 8, and sensor 9 is installed on the controlled device 10, and sensor 9 also is connected on the external high pressure control power supply 8.Therefore, the oscillating load of controlled device 10 acts on the electrorheological elastomer 6 by connecting rod 1 and copper piston 5, electrorheological elastomer 6 is subjected to shear loads, external high pressure control power supply 8 is controlled the voltage swing that puts between sleeve 4 and the piston 5 by power lead 7, the rigidity and the damping of electrorheological elastomer 6 are changed, become the power consumption of elastomer 6 like this with regard to controllable current, thereby reach the effect of required active-passive integrated vibration damping.
In addition, from Fig. 2, also can see, on the base outer lug boss of housing 3, be provided with the through hole that is used for mounting screw, can whole vibration damper be installed on the desired position with screw by this through hole.
Claims (3)
1. one kind based on the elastomeric active-passive integrated damper of electrorheological, and it is characterized in that: it comprises housing (3), the base sealing of housing (3), and the upper end of housing (3) is provided with end cap (2); The inside of housing (3) is provided with piston (5), and the upper end of piston (5) is fixed with a connecting rod (1), and connecting rod (1) stretches out from the through hole of end cap (2) and is connected with controlled device (10); Be provided with sleeve (4) in shell (3), fix by interference fit between shell (3) and the sleeve (4), be provided with electrorheological elastomer (6) between sleeve (4) and the piston (5), electrorheological elastomer (6) is fixed between sleeve (4) and the piston (5); Power lead (7) is drawn from the aperture of end cap (2), and piston (5) and sleeve (4) be connected on the external high pressure control power supply (8), sensor (9) is installed on the controlled device (10), and sensor (9) also is connected on the external high pressure control power supply (8); Described housing (3), end cap (2) and connecting rod (1) are insulating material and make, and sleeve (4) and piston (5) are electric conductivity favorable conductive material.
2. according to claim 1 based on the elastomeric active-passive integrated damper of electrorheological, it is characterized in that: described electrorheological elastomer (6) is the intelligent solid material that a kind of rigidity and damping are subjected to extra electric field control, and its main constituent comprises as the rubber-like damping material of body material and disperses high-k electricity wherein to lead particle.
3. according to claim 1 and 2 based on the elastomeric active-passive integrated damper of electrorheological, it is characterized in that: described shell (3), electrorheological elastomer (6), sleeve (4) and piston (5) are cylindrical; The base outer lug boss of housing (3) is provided with the through hole that is used for mounting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010109697A CN101813153A (en) | 2010-02-09 | 2010-02-09 | Active and passive integrated vibration absorber based on electrorheological elastomer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010109697A CN101813153A (en) | 2010-02-09 | 2010-02-09 | Active and passive integrated vibration absorber based on electrorheological elastomer |
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| CN101813153A true CN101813153A (en) | 2010-08-25 |
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| CN201010109697A Pending CN101813153A (en) | 2010-02-09 | 2010-02-09 | Active and passive integrated vibration absorber based on electrorheological elastomer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537185A (en) * | 2011-12-28 | 2012-07-04 | 东莞理工学院城市学院 | Intelligent automotive shock absorber |
| CN103615491A (en) * | 2013-09-29 | 2014-03-05 | 湖南工程学院 | Intelligent self-energized absorber |
| CN103806569A (en) * | 2014-01-26 | 2014-05-21 | 大连理工大学 | Electro-rheological elastomer intelligent shock insulation supporting base |
| CN104154169A (en) * | 2014-07-18 | 2014-11-19 | 湘潭大学 | Self-powered electrorheological elastomer damper |
| CN104331541A (en) * | 2014-10-14 | 2015-02-04 | 江苏科技大学 | Semi-active particle damping vibration attenuation system and hybrid modeling analysis method thereof |
| CN104832586A (en) * | 2015-05-06 | 2015-08-12 | 常州大学 | Adaptive equal-rigidity vibration isolator based on electric-damping three-direction decoupling |
| CN105570376A (en) * | 2015-12-31 | 2016-05-11 | 浙江科技学院 | Electrorheological fluid shock absorber |
| CN105626758A (en) * | 2016-03-22 | 2016-06-01 | 铱格斯曼航空科技集团有限公司 | Magneto-rheological damper used for installation and debugging of helicopter high-definition camera |
| CN106907423A (en) * | 2017-04-20 | 2017-06-30 | 南京理工大学 | A kind of light-operated current mutative damp device |
-
2010
- 2010-02-09 CN CN201010109697A patent/CN101813153A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537185A (en) * | 2011-12-28 | 2012-07-04 | 东莞理工学院城市学院 | Intelligent automotive shock absorber |
| CN103615491A (en) * | 2013-09-29 | 2014-03-05 | 湖南工程学院 | Intelligent self-energized absorber |
| CN103615491B (en) * | 2013-09-29 | 2015-07-29 | 湖南工程学院 | Self energizing intelligent vibration damper |
| CN103806569A (en) * | 2014-01-26 | 2014-05-21 | 大连理工大学 | Electro-rheological elastomer intelligent shock insulation supporting base |
| CN104154169A (en) * | 2014-07-18 | 2014-11-19 | 湘潭大学 | Self-powered electrorheological elastomer damper |
| CN104331541A (en) * | 2014-10-14 | 2015-02-04 | 江苏科技大学 | Semi-active particle damping vibration attenuation system and hybrid modeling analysis method thereof |
| CN104331541B (en) * | 2014-10-14 | 2017-08-11 | 江苏科技大学 | A kind of half active particles damping system and its hybrid modeling analysis method |
| CN104832586A (en) * | 2015-05-06 | 2015-08-12 | 常州大学 | Adaptive equal-rigidity vibration isolator based on electric-damping three-direction decoupling |
| CN105570376A (en) * | 2015-12-31 | 2016-05-11 | 浙江科技学院 | Electrorheological fluid shock absorber |
| CN105570376B (en) * | 2015-12-31 | 2017-10-13 | 浙江科技学院 | Electrorheological fluid vibration damper |
| CN105626758A (en) * | 2016-03-22 | 2016-06-01 | 铱格斯曼航空科技集团有限公司 | Magneto-rheological damper used for installation and debugging of helicopter high-definition camera |
| CN106907423A (en) * | 2017-04-20 | 2017-06-30 | 南京理工大学 | A kind of light-operated current mutative damp device |
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Application publication date: 20100825 |