CN104154169B - Self energizing electrorheological elastomer vibration damper - Google Patents
Self energizing electrorheological elastomer vibration damper Download PDFInfo
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- CN104154169B CN104154169B CN201410343436.0A CN201410343436A CN104154169B CN 104154169 B CN104154169 B CN 104154169B CN 201410343436 A CN201410343436 A CN 201410343436A CN 104154169 B CN104154169 B CN 104154169B
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- press table
- top board
- electrorheological elastomer
- insulation crust
- electrode plate
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Abstract
The invention provides a kind of self energizing electrorheological elastomer vibration damper, comprise insulation crust, depression bar, top board, piezoelectric constant, press table, polylith electrode plate and electrorheological elastomer; The top of described insulation crust is provided with a through hole, depression bar is through this through hole, top board, press table, electrode plate and electrorheological elastomer are arranged in insulation crust inner chamber, insulating paper is provided with between depression bar and top board, piezoelectric constant is placed between top board and press table, electrode plate is placed in insulation crust inner chamber, is provided with insulating paper between press table and electrode plate; Be provided with electrorheological elastomer between two adjacent electrode plates, top board is connected with electrode plate respectively by wire with press table, and two electrode plates that same electrorheological elastomer is corresponding connect top board and press table respectively.Present invention employs the generating of cylindrical piezoelectric pottery, stronger electric field can be provided for electrorheological elastomer, achieve self energizing of the present invention, and better can adapt to vibration environment, realize the suppression to vibration.
Description
Technical field
The present invention relates to a kind of vibration damper, especially relate to a kind of self energizing electrorheological elastomer vibration damper.
Background technique
At present, in mechanical vibration damping, be modally still traditional hydraulic pressure and gas-filled shock absorber, though this kind of vibration damper effect is pretty good, shortcoming is that damping is uncontrollable, and sealability requires high, harsh to the requirement on machining accuracy of component; And the easy befouling environment of hydraulic oil that dydraulic shock absorber leaks out.
ER effect/the magneto-rheological vibration damper of a series of adaptive dampings of nearest research, though have be swift in response, damping force that controllability is strong, but shortcoming is the ER effect/magnetic flow liquid free settling configured at present, sealability requires high, and generally all needing to add external power supply provides electric energy etc. to electrorheological fluid/magnetic flow liquid, these shortcomings significantly limit the development of this kind of adaptive transmission control.
Some current vibration dampers, as the number of applying for a patent a kind of bitubular high pressure magneto-rheological vibration damper disclosed in the Chinese patent of CN201310174535.6, the air bag of this patent of invention has buffer function to magnetic flow liquid, during vibration, restore electromagnetic coil and restore electromagnetic coil and produce electric field, electromagnetic current is through magnetic flow liquid, and the viscosity of magnetic flow liquid raises, mobility reduces, and increases effectiveness in vibration suppression.But the shortcoming of this vibration damper is sealability requires high and magnetic flow liquid free settling, and the generation in magnetic field need add external power supply etc.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of have be swift in response, damping force that controllability is strong and low self energizing electrorheological elastomer vibration damper is required to sealability.
The technical solution used in the present invention is: the electrorheological elastomer comprising insulation crust, depression bar, top board, piezoelectric constant, press table, polylith electrode plate and be arranged between two adjacent electrode plates; The top of described insulation crust is provided with a through hole, and depression bar is through this through hole; Described top board, press table, electrode plate and electrorheological elastomer are arranged in insulation crust inner chamber, insulating paper is provided with bottom depression bar and between top board, described piezoelectric constant is placed between top board and press table, described polylith electrode plate is placed between insulation crust inner chamber bottom surface and press table, is provided with insulating paper between press table and electrode plate; Top board is connected with electrode plate respectively by wire with press table, and two electrode plates corresponding to same electrorheological elastomer connect top board and press table respectively, and described top board and press table are made up of copper coin.
In above-mentioned self energizing electrorheological elastomer vibration damper, bottom described depression bar, be provided with flange, between the flange of depression bar and insulation crust inner chamber end face, be provided with spring.
In above-mentioned self energizing electrorheological elastomer vibration damper, comprise multiple piezoelectric constant, piezoelectric constant is cylindrical; Described press table upper surface is provided with blind round hole, and piezoelectric constant is inlaid in the blind round hole of press table.
In above-mentioned self energizing electrorheological elastomer vibration damper, described insulation crust comprises insulator foot and upper insulating cylinder, and upper insulating cylinder is connected with insulator foot by screw, and the top center place of described upper insulating cylinder is provided with a through hole.
In above-mentioned self energizing electrorheological elastomer vibration damper, described insulation crust inwall is provided with connecting groove.
Compared with prior art, the invention has the beneficial effects as follows:
1) the present invention adopts the generating of cylindrical piezoelectric pottery, and the pressure that cylindrical piezoelectric pottery can bear is large, and the voltage of generation is high, can well provide stronger electric field, achieve self energizing of the present invention for electrorheological elastomer of the present invention.
2) what damping material of the present invention adopted is electrorheological elastomer, electrorheological elastomer not only inherits the advantages such as electrorheological fluid dielectric coefficient is high, physical and chemical performance stable, environmentally safe, and shaping structures is convenient, overcome the shortcomings such as ER effect/magnetic flow liquid particles settling, leakage, and the present invention is not containing hydraulic oil, require low to sealability, avoid hydraulic oil and reveal pollution on the environment.
3) what damping material of the present invention adopted is electrorheological elastomer, the natural frequency of electrorheological elastomer increases with the increase of electric field strength, and vibratory response amplitude reduces along with the increase of electric field strength, by changing the electric field strength between electrode plate, rigidity and the damping of electrorheological elastomer can be changed, make the present invention to adapt to vibration environment, realize the suppression to vibration.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is the stereogram of the present invention when laying down insulating cylinder.
Fig. 3 is the structural representation of press table of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, 2, the present invention includes insulation crust, depression bar 1, top board 4, four piezoelectric constant 5, press table 6, three electrode plate 8 and two pieces of electrorheological elastomer 9; Described insulation crust comprises insulator foot 11 and upper insulating cylinder 3, and upper insulating cylinder 3 is connected with insulator foot 11 by screw, and the top center place of described upper insulating cylinder 3 is provided with a through hole, and described depression bar 1 is through this through hole; The bottom of depression bar 1 is provided with flange, is provided with spring 2 between the flange of depression bar 1 and insulation crust inner chamber end face.
Described top board 4, press table 6, electrode plate 8 and electrorheological elastomer 9 are arranged in insulation crust inner chamber, are provided with insulating paper 7 between the bottom of depression bar 1 and top board 4, and described piezoelectric constant 5 is cylindrical, is placed between top board 4 and press table 6.As shown in Figure 3, described press table 6 upper surface is provided with four blind round hole, 61, four piezoelectric constant 5 and is inlaid in respectively in blind round hole 61.Described top board 4 and press table 6 make with the copper coin of conduction.
Three described electrode plate 8 are placed between the bottom surface of insulation crust inner chamber and press table 6, insulating paper 12 is provided with between press table 6 and electrode plate 8, electrorheological elastomer 9 is provided with between two adjacent electrode plates 8, top board 4 is connected with three electrode plate 8 respectively by wire 10 with press table 6, wire is placed in insulation crust inwall and is provided with in connecting groove, and two electrode plates corresponding to same electrorheological elastomer 9 connect top board 4 and press table 6 respectively.Prepared by described electrorheological elastomer 9 starch, barium titanate, silicone oil and silicone rubber.
During use, be connected with external vibration device by depression bar 1, vibrational energy is directly passed to the piezoelectric constant electricity generation module be made up of top board 4, multiple cylindrical piezoelectric pottery 5 and press table 6, because of the high voltage that the deformation of cylindrical piezoelectric pottery 5 produces, be delivered to by wire 10 on the elastomer Damping modules be made up of three pieces of conductive plates 8 and two pieces of electrorheological elastomer 9, the pressure that cylindrical piezoelectric pottery 5 can bear is large, the voltage produced is high, stronger electric field can well be provided, to realize self energizing of the present invention for electrorheological elastomer 9 of the present invention.And damping material employing is electrorheological elastomer 9, the natural frequency of electrorheological elastomer 9 increases with the increase of electric field strength, and vibratory response amplitude reduces along with the increase of electric field strength, by changing the electric field level between electrode plate 8, rigidity and the damping of electrorheological elastomer 9 can be changed, make the present invention better adapt to vibration environment, realize the suppression to vibration.Spring 2 between upper insulating cylinder body 3 and depression bar 1 provides prestressing force, piezoelectric constant electricity generation module dystopy when preventing vibration damper to turn upside down can to depression bar 1 and piezoelectric constant electricity generation module.Depression bar 1 and piezoelectric constant electricity generation module and between piezoelectric constant electricity generation module and elastomer Damping modules, adopt insulating paper 7 and insulating paper 12 to insulate.Adopt screw to connect between upper insulating cylinder body 3 and insulator foot 11, and insulator foot 11 is fixed up.
During use, depression bar 1 is connected to external vibration end, insulator foot 11 is fixed up.The vibrational energy of external vibration end passes to piezoelectric constant electricity generation module and elastomer Damping modules by depression bar 1, and partial vibration converts electric energy to by piezoelectric constant 5, provides electric field, realize self energizing to electrorheological elastomer 9.Other vibrational energy is then consumed by rigidity and the adjustable electrorheological elastomer 9 of damping.The present invention is low to seal request, avoids hydraulic oil and reveals pollution on the environment.
Claims (5)
1. a self energizing electrorheological elastomer vibration damper, is characterized in that: the electrorheological elastomer comprising insulation crust, depression bar, top board, piezoelectric constant, press table, polylith electrode plate and be arranged between two adjacent electrode plates; The top of described insulation crust is provided with a through hole, and depression bar is through this through hole; Described top board, press table, electrode plate and electrorheological elastomer are arranged in insulation crust inner chamber, insulating paper is provided with bottom depression bar and between top board, described piezoelectric constant is placed between top board and press table, described polylith electrode plate is placed between insulation crust inner chamber bottom surface and press table, is provided with insulating paper between press table and electrode plate; Top board is connected with electrode plate respectively by wire with press table, and two electrode plates corresponding to same electrorheological elastomer connect top board and press table respectively, and described top board and press table are made up of copper coin.
2. self energizing electrorheological elastomer vibration damper as claimed in claim 1, is characterized in that: be provided with flange bottom described depression bar, is provided with spring between the flange of depression bar and insulation crust inner chamber end face.
3. self energizing electrorheological elastomer vibration damper as claimed in claim 1, is characterized in that: comprise multiple piezoelectric constant, piezoelectric constant is cylindrical; Described press table upper surface is provided with blind round hole, and piezoelectric constant is inlaid in the blind round hole of press table.
4. self energizing electrorheological elastomer vibration damper as claimed in claim 1, it is characterized in that: described insulation crust comprises insulator foot and upper insulating cylinder, upper insulating cylinder is connected with insulator foot by screw, and the top center place of described upper insulating cylinder is provided with a through hole.
5. self energizing electrorheological elastomer vibration damper as claimed in claim 1, is characterized in that: described insulation crust inwall is provided with connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343436.0A CN104154169B (en) | 2014-07-18 | 2014-07-18 | Self energizing electrorheological elastomer vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343436.0A CN104154169B (en) | 2014-07-18 | 2014-07-18 | Self energizing electrorheological elastomer vibration damper |
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| Publication Number | Publication Date |
|---|---|
| CN104154169A CN104154169A (en) | 2014-11-19 |
| CN104154169B true CN104154169B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410343436.0A Expired - Fee Related CN104154169B (en) | 2014-07-18 | 2014-07-18 | Self energizing electrorheological elastomer vibration damper |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832585B (en) * | 2015-04-30 | 2016-08-31 | 湘潭大学 | Intelligent magneto-rheological elastomer vibroshock |
| CN106438823A (en) * | 2016-11-08 | 2017-02-22 | 安徽理工大学 | Self-power electrorheological fluid damping vibration isolator |
| CN107255136A (en) * | 2017-04-27 | 2017-10-17 | 湘潭大学 | Intelligent current becomes elastomer shock absorber |
| CN111396496A (en) * | 2020-03-24 | 2020-07-10 | 太原理工大学 | Electrorheological elastomer shock absorber with self-coupling function |
| CN112057826A (en) * | 2020-09-08 | 2020-12-11 | 肖瑞 | Stable form basketball stands convenient to use night |
| CN112787238A (en) * | 2021-01-18 | 2021-05-11 | 南京耀成家具有限公司 | Intelligent manufacturing power distribution cabinet for leakage detection by using electrorheological fluid |
| CN112901710A (en) * | 2021-04-01 | 2021-06-04 | 太原理工大学 | Pressure-shear mixed mode electrorheological elastomer vibration isolator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590745A (en) * | 1995-06-19 | 1997-01-07 | Bridgestone/Firestone, Inc. | Vibration damping device using ER fluids having multiple electrodes |
| CN101813153A (en) * | 2010-02-09 | 2010-08-25 | 湖南工程学院 | Active and passive integrated vibration absorber based on electrorheological elastomer |
| CN102287474A (en) * | 2011-06-03 | 2011-12-21 | 嘉兴学院 | Self-powered and self-induction magnetorheological damper |
| WO2014053025A1 (en) * | 2012-10-04 | 2014-04-10 | University Of Technology, Sydney | Adaptive mre vibration isolation assembly and system |
| CN203488624U (en) * | 2013-08-22 | 2014-03-19 | 兰州大学 | Adaptive damping device |
| CN103410910B (en) * | 2013-08-22 | 2015-07-29 | 兰州大学 | A kind of self adaption damping device |
| 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 |
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Granted publication date: 20151230 Termination date: 20180718 |