CN200975034Y - Double extending rod double cylinder electrical current changeable damper - Google Patents
Double extending rod double cylinder electrical current changeable damper Download PDFInfo
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- CN200975034Y CN200975034Y CN 200620134041 CN200620134041U CN200975034Y CN 200975034 Y CN200975034 Y CN 200975034Y CN 200620134041 CN200620134041 CN 200620134041 CN 200620134041 U CN200620134041 U CN 200620134041U CN 200975034 Y CN200975034 Y CN 200975034Y
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Abstract
The utility model relates to a double-knockout bar double-cylinder electrorheological damper which belongs to the building and mechanical structure shock reduction field. In the device, an anterior cylinder cover (5), the first negative plate (11), the first partition (14) forms the main anterior cylinder (9); the first partition (14), the second negative plate (21) and the second partition (22) form the main posterior cylinder 16; the second partition 22, a sub cylinder 23 and a sub cylinder cover 20 form a sub cylinder 19. The first piston 18 and the second piston 24 are respectively positioned in the main anterior cylinder 9 and the main posterior cylinder. The main anterior cylinder 9 is filled with conventional large viscosity electrorheological fluid 13 and the main posterior cylinder 16 is filled with giant electrorheological fluid 15. The conventional large viscosity electrorheological fluid in the main anterior cylinder 9 provides quite large viscous-damping stress for the damper and the giant electrorheological fluid 15 in the main posterior cylinder 16 provides quite large yield shear stress. The device combines the two, provides damping stress which changes as the speed which has good shock reducing effect to the external incentive within broad band, and the high voltage is low so that the scope of application is enlarged.
Description
Technical field
The utility model relates to a kind of pair of output rod double-cylinder electro-rheological fluid damper, belongs to building and frame for movement antivibration area.This device is mainly used in the influence of moving of reducing to be produced in various buildings and the equipment or displacement, particularly is applicable to damping of building interlayer and the shock insulation layer spacing aspect that consumes energy.
Background technology
The electric/magnetic rheological body is that the granule by high-k is dispersed in the suspension liquid that forms in the volume of low-k.This suspension liquid can make the solid particle polarization in the moment of Millisecond and interact under the extra electric field effect, formation is parallel to the chain or the column structure of electric field, thereby liquid is shown as have this structure state of the similar solid of certain yield stress, make apparent viscosity increase several magnitude.This effect that makes fluid change state is called electric rheological effect.
The electric/magnetic rheological damper is a kind of application energy-eliminating shock-absorbing control device very widely, can be used for fields such as machinery, building.Its control mechanism is by to the electric rheological effect in the damper, and the partial vibration energy of structure is dissipated by damping material, reach alleviate outer impact of carrying, reduce structural vibration, the purpose of protection structural safety.
Though both performances of electric/magnetic rheological liquid are all very similar in many aspects, but under identical power consumption, the big order of magnitude of the electrorheological fluid that magnetorheological accessible yield stress is more general, that is to say, the general electrorheological fluid intensity that is adopted is lower, maximum has only 5kPa, and magnetorheological maximum can reach 50kPa.These characteristics make it under the prerequisite that produces bigger power and effectiveness in vibration suppression, and are more much bigger than the damper of making of magnetic flow liquid with the damper that electrorheological fluid is made.But the easier commercial exploitation of current liquid and make in the laboratory is so be easier to design and make than the device based on magnetic rheological liquid based on the device of current liquid.Simultaneously, though the response time of electricity/magnetic current liquid is generally depended on the device design, under same condition, the electrorheological fluid response time is faster than magnetic flow liquid.
According to the research work that the Wen Weijia of Hong Kong University of Science and Thchnology professor is done, the novel giant electro-rheological liquid of development can reach the yield strength more than the 130kPa under the electric-field intensity of 5kV/mm at present, is far longer than magnetic flow liquid, can satisfy the needs that engineering is used fully.But this novel giant electro-rheological liquid coefficient of viscosity only is 1/10 of a common electrical rheology liquid, only is 0.1Pas, and the general used common electrical rheology liquid or the viscous damping liquid coefficient of viscosity is 1Pas.Therefore under the similarity condition, the viscous damping that common electrical rheology liquid or viscous damping liquid provide will be far longer than the viscous damping force that novel giant electro-rheological liquid provides.
Theoretical and test shows: in actual engineering, we more need a kind of can Passive Control (null field, in the whole field) can also half initiatively and the ACTIVE CONTROL field bring into play the damper of better effects, no matter this all has suitable viscous damping force when just requiring this damper in Passive Control or in half active/active, and bigger yield stress is provided.Therefore, be badly in need of that a kind of volume of exploitation is little, simple structure, exert oneself big and have the electric/magnetic rheological damper of big viscous damping force, destroy, reduce the structural vibration reaction to prevent structural failure.
Summary of the invention
The electro-rheological fluid damper response speed is fast in order to make full use of, device construction is simple, giant electro-rheological liquid yield strength height and common electrical rheology liquid and the high advantage of viscous damping liquid viscous damping force, overcome existing MR damper complex structure, the electro-rheological fluid damper yield stress is low and the giant electro-rheological viscous damping force is low shortcoming, the utility model provides a kind of pair of output rod double-cylinder electro-rheological fluid damper, and the advantage of giant electro-rheological liquid and common electrical rheology liquid or viscous damping liquid is combined.
The technical scheme that the utility model adopted is as follows.A kind of pair of output rod double-cylinder electro-rheological fluid damper is characterized in that: cylinder cylinder cap 5, first negative plate 11, first dividing plate 14, second negative plate 21, second partition 22, secondary cylinder cylinder cap 20, piston rod 4, first piston 18, second piston 24 before including; Wherein, preceding cylinder cylinder cap 5, first negative plate 11, first dividing plate 14 is formed main preceding cylinder 9, first dividing plate 14, second negative plate 21, second partition 22 is formed main back cylinder 16, second partition, secondary cylinder cylinder body 23, secondary cylinder cylinder cap 20 is formed secondary cylinder 19, first piston 18, second piston 24 is separately positioned on main preceding cylinder 9 by piston rod 4, in the cylinder 16 of main back, cylinder cylinder cap 5 extended main preceding cylinder 9 before the front end of piston rod 4 passed, the rear end is passed first dividing plate 14 successively, second partition 22 extends to secondary cylinder 19, piston rod 4 stretch out main before the outside of an end of cylinder 9 and secondary cylinder cylinder cap 20 be respectively arranged be used for linking to each other with structure be connected earrings 3; Be filled with electrorheological fluid 13 in the cylinder 9 before main, be filled with giant electro-rheological liquid 15 in the cylinder 16 of main back, the first piston 18 and first negative plate 11, there is damp channel 12 between second piston 24 and second negative plate 21, first piston 18, the one side that second piston 24 contacts with damp channel 12 is provided with the toroidal cavity concentric with piston, in groove, be provided with positive plate 17, first piston 18, second piston 24 and positive plate 17 and between insulating slab 8 insulation is arranged, first negative plate 11 and front end housing 5, between first dividing plate 14 and second negative plate 21 and first dividing plate 14, be provided with insulating slab 8 insulation between the second partition 22; Be provided with the through wires hole 10 that is interconnected in piston rod 4 and first piston 18, second piston 24, be provided with high-voltage positive electrode lead 2 in the through wires hole 10, one end of high-voltage positive electrode lead 2 is connected with positive plate 17, the other end is drawn with the positive pole of high voltage source 1 from secondary cylinder 19 and is connected, and the negative pole of high voltage source 1 links to each other with first negative plate 11, second negative plate 21 respectively; Front end housing 5, first dividing plate 14 with main before the side that contact of cylinder 9 and first dividing plate 14, second partition 22 be provided with encapsulant 6 with the side that main back cylinder 16 contact, be used for cylinder 16 behind the main preceding cylinder 9 of sealing and the master.
Described piston rod 4, front end housing 5, main preceding cylinder 9, first dividing plate 14, second partition 22, main back cylinder 16, first piston 18, second piston 24, secondary cylinder 19 are circular cross-section; Insulating slab 8, first negative plate 11, second negative plate, 21 positive plates 17 all adopt the annular cross section.
The thickness of described damp channel 12 is 1mm～2mm.Breakdown to prevent giant electro-rheological liquid 15 or common big viscosity electrorheological fluid 13 in the damp channel 12.
Described electrorheological fluid is common big viscosity electrorheological fluid 13.
Each scantling can be different in cylinder 9 and the main back cylinder 16 before the described master, but need be on same axis, and promptly horizontal center line and satisfies requirement of strength on same straight line.Secondary cylinder 19 length should be more than or equal to the displacement of piston 18, in order to avoid excessive and the secondary cylinder cylinder cap 20 of piston 18 displacements bumps, and prevents that the right side of piston rod 4 from putting in main cylinder 16 afterwards.On first negative plate 11 and second negative plate 21, be provided with the electrorheological fluid injection hole.
The utility model has utilized the viscous damping of electrorheological fluid and the controllability of yield stress, no matter the common big viscosity electrorheological fluid 13 before main in the cylinder 9 all provides more suitable viscous damping force to structure in Passive Control (null field, in the whole field) during still in active or half ACTIVE CONTROL, has certain control effect, and the giant electro-rheological liquid 15 in the main back cylinder 16 provides the height yield stress to structure when applying high pressure, its adjustability coefficients is bigger, for structural vibration provides additional damping power with velocity variations, damper further increases the control effect of structure.Simultaneously, show with analysis of experiments from theoretical: provide certain passive viscous damping owing to had common big viscosity electrorheological fluid 13, therefore when carrying out active or half ACTIVE CONTROL, calculating the voltage that obtains acting on the high voltage source 1 on the giant electro-rheological liquid 15 by control algolithm also can effectively reduce, reduce the danger of 5kV/mm high pressure, reduced the load of high voltage source lifting means.But its used electric current is very little, and power consumption is on the contrary less than MR damper.
A kind of pair of output rod double-cylinder electro-rheological fluid damper of the present utility model can Passive Control (null field, in the whole field) can also half initiatively and the performance of ACTIVE CONTROL field better control effect, viscous damping and surrender damping are all bigger, damper is adjustable multiple height, dynamic excitation in the broad frequency band is had damping limit effect preferably, and the scope of application improves greatly.This damper has also that response speed is fast, equipment is simple, less energy consumption, volume is little, in light weight, cost is low, member does not have wearing and tearing, good reliability, advantage such as easy for installation.
Description of drawings
Fig. 1 structure sectional view of the present utility model
Among the figure: 1, high voltage source, 2, the high-voltage positive electrode lead, 3, connect earrings, 4, piston rod, 5, preceding cylinder cylinder cap, 6, encapsulant, 7, high voltage negative lead, 8, insulating slab, 9, main before cylinder, 10, through wires hole, 11, first negative plate, 12, damp channel, 13, common big viscosity electrorheological fluid, 14, first dividing plate, 15, giant electro-rheological liquid, 16, main back cylinder, 17, positive plate, 18, first piston, 19, secondary cylinder, 20, secondary cylinder cylinder cap, 21, second negative plate, 22, second partition, 23, secondary cylinder cylinder body, 24, second piston.
The specific embodiment
Below in conjunction with the accompanying drawing 1 explanation specific embodiment of the present utility model.
Referring to Fig. 1, present embodiment mainly includes preceding cylinder cylinder cap 5, first negative plate 11, first dividing plate 14, second negative plate 21, second partition 22, secondary cylinder cylinder cap 20, piston rod 4, first piston 18, second piston 24; Wherein, preceding cylinder cylinder cap 5, first negative plate 11, first dividing plate 14 is formed main preceding cylinder 9, first dividing plate 14, second negative plate 21, second partition 22 is formed main back cylinder 16, second partition 22, secondary cylinder cylinder body 23, secondary cylinder cylinder cap 20 is formed secondary cylinder 19, first piston 18, second piston 24 is separately positioned on main preceding cylinder 9 by piston rod 4, in the cylinder 16 of main back, cylinder cylinder cap 5 extended main preceding cylinder 9 before the front end of piston rod 4 passed, the rear end is passed first dividing plate 14 successively, second partition 22 extends to secondary cylinder 19, piston rod 4 stretch out main before the outside of an end of cylinder 9 and secondary cylinder cylinder cap 20 be respectively arranged be used for linking to each other with structure be connected earrings 3.Be filled with common big viscosity electrorheological fluid 13 in the cylinder 9 before main, the high strength mighty current that is filled with developments such as Wen Weijia of The Hong Kong Polytechnic University or the Lu Kun of physics institute of Chinese Academy of Sciences power in the cylinder 16 of main back becomes liquid 15.There is damp channel 12 between first piston 18 and first negative plate 11, second piston 24 and second negative plate 21, the thickness of damp channel 12 is 1mm～2mm, and is breakdown to prevent giant electro-rheological liquid 15 or common big viscosity electrorheological fluid 13 in the damp channel 12.The one side that first piston 18, second piston 24 contact with damp channel 12 is provided with the toroidal cavity concentric with piston, in groove, be provided with positive plate 17, insulating slab 8 insulation is arranged, between first negative plate 11 and front end housing 5, first dividing plate 14 and also be provided with insulating slab 8 between second negative plate 21 and first dividing plate 14, the second partition 22 and insulate between positive plate 17 and the piston; Be provided with the through wires hole 10 that is interconnected in piston rod 4 and first piston 18, second piston 24, be provided with high-voltage positive electrode lead 2 in the through wires hole 10, one end of high-voltage positive electrode lead 2 is connected with positive plate 17, the other end is drawn with the positive pole of high voltage source 1 from secondary cylinder 19 and is connected, and the negative pole of high voltage source 1 links to each other with first negative plate 11, second negative plate 21 respectively.And the side that cylinder 9 contacts before leading and first dividing plate 14, second partition 22 are provided with encapsulant 6 with the side that main back cylinder 16 contacts at front end housing 5, first dividing plate 14.
Piston rod 4, front end housing 5, main preceding cylinder 9, first dividing plate 14, second partition 22, main back cylinder 16, piston 18, secondary cylinder 19 are circular cross-section.Insulating slab 8, first negative plate 11, second negative plate 21, positive plate 17 all adopt the annular cross section.On first negative plate 11 and second negative plate 21, be provided with the electrorheological fluid injection hole.
According to Fig. 1～two embodiment of the present utility model shown in Figure 2 all is that component-assembled with commercially available and design processing is an one, realizes present embodiment.All adopt conventional bolt, thread connecting mode between each parts.
The two output rod double-cylinder electro-rheological fluid dampers that the utility model proposes can be used for the occasion of structure passive energy dissipation, to cut down building, bridge and plant equipment because of moving and vibration that a variety of causes causes.
Claims (5)
1, a kind of pair of output rod double-cylinder electro-rheological fluid damper is characterized in that: cylinder cylinder cap (5), first negative plate (11), first dividing plate (14), second negative plate (21), second partition (22), secondary cylinder cylinder cap (20), piston rod (4), first piston (18), second piston (24) before including; Wherein, preceding cylinder cylinder cap (5), first negative plate (11), first dividing plate (14) is formed main preceding cylinder (9), first dividing plate (14), second negative plate (21), second partition (22) is formed main back cylinder (16), second partition, secondary cylinder cylinder body (23), secondary cylinder cylinder cap (20) is formed secondary cylinder (19), first piston (18), second piston (24) is separately positioned on main preceding cylinder (9) by piston rod (4), in the main back cylinder (16), cylinder cylinder cap (5) extended main preceding cylinder (9) before the front end of piston rod (4) passed, the rear end is passed first dividing plate (14) successively, second partition (22) extends to secondary cylinder (19), piston rod (4) stretch out main before the outside of an end of cylinder (9) and secondary cylinder cylinder cap (20) be respectively arranged be used for linking to each other with structure be connected earrings (3); Be filled with electrorheological fluid in the cylinder (9) before main, be filled with giant electro-rheological liquid (15) in the main back cylinder (16), first piston (18) and first negative plate (11), there is damp channel (12) between second piston (24) and second negative plate (21), first piston (18), second piston (24) is provided with groove with the one side that damp channel (12) contacts, in groove, be provided with positive plate (17), first piston (18), insulating slab (8) insulation is arranged, first negative plate (11) and front end housing (5) between second piston (24) and the positive plate (17), between first dividing plate (14) and second negative plate (21) and first dividing plate (14), be provided with insulating slab (8) insulation between the second partition (22); Be provided with the through wires hole (10) that is interconnected in piston rod (4) and first piston (18), second piston (24), be provided with high-voltage positive electrode lead (2) in the through wires hole (10), one end of high-voltage positive electrode lead (2) is connected with positive plate (17), the other end is drawn with the positive pole of high voltage source (1) from secondary cylinder (19) and is connected, and the negative pole of high voltage source (1) links to each other with first negative plate (11), second negative plate (21) respectively; And the side that cylinder (9) contacts before leading and first dividing plate (14), second partition (22) are provided with encapsulant (6) with the side that main back cylinder (16) contacts at front end housing (5), first dividing plate (14).
2, a kind of pair of output rod double-cylinder electro-rheological fluid damper according to claim 1 is characterized in that: described piston rod (4), front end housing (5), main preceding cylinder (9), first dividing plate (14), second partition (22), main back cylinder (16), first piston (18), second piston (24), secondary cylinder (19) are circular cross-section; Insulating slab (8), first negative plate (11), second negative plate (21), positive plate (17) all adopt the annular cross section.
3, a kind of pair of output rod double-cylinder electro-rheological fluid damper according to claim 1, it is characterized in that: the thickness of damp channel (12) is 1mm～2mm.
4, a kind of pair of output rod double-cylinder electro-rheological fluid damper according to claim 1 is characterized in that: the horizontal center line of cylinder (9) and main back cylinder (16) is on same straight line before the described master.
5, a kind of pair of output rod double-cylinder electro-rheological fluid damper according to claim 1 is characterized in that: described electrorheological fluid is a common big viscosity electrorheological fluid (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620134041 CN200975034Y (en) | 2006-10-13 | 2006-10-13 | Double extending rod double cylinder electrical current changeable damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620134041 CN200975034Y (en) | 2006-10-13 | 2006-10-13 | Double extending rod double cylinder electrical current changeable damper |
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| CN200975034Y true CN200975034Y (en) | 2007-11-14 |
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| CN 200620134041 Expired - Fee Related CN200975034Y (en) | 2006-10-13 | 2006-10-13 | Double extending rod double cylinder electrical current changeable damper |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287476A (en) * | 2011-07-14 | 2011-12-21 | 大连理工大学 | Multilayer fixed pole plate fluid type electro-rheological damper |
| CN101839298B (en) * | 2010-01-19 | 2012-01-04 | 谭晓婧 | Double-cylinder magneto-rheological damper |
| CN102808890A (en) * | 2011-06-02 | 2012-12-05 | 北京长城博创科技有限公司 | Composite damper with electrical connection function |
| CN103075459A (en) * | 2013-01-28 | 2013-05-01 | 中国矿业大学 | Double-ejection rod ring magnetic steel piston magnetorheological damper |
| CN103148157A (en) * | 2012-07-19 | 2013-06-12 | 吉林大学 | Multistage extrusion-type magneto-rheological damper |
| CN104712702A (en) * | 2013-12-13 | 2015-06-17 | 通用汽车环球科技运作有限责任公司 | Height adjustable damping device |
| CN103938750B (en) * | 2014-04-08 | 2016-06-15 | 同济大学 | Energy dissipation brace damping device |
| CN106907422A (en) * | 2015-12-23 | 2017-06-30 | 上海汽车集团股份有限公司 | Electrorheological fluid vibration damper and its control method, control unit, ECU and automobile |
| CN108533662A (en) * | 2018-04-23 | 2018-09-14 | 上海大学 | A kind of giant electro-rheological fluid damper |
| CN108571559A (en) * | 2018-07-25 | 2018-09-25 | 上海大学 | A kind of damper means of stiffness variable adaptive damping |
| CN109057070A (en) * | 2018-09-18 | 2018-12-21 | 中冶建筑研究总院（深圳）有限公司 | The symmetrical integrated double-cylinder viscous damper and application structure of the outer unstability of anti-plane |
| CN109138207A (en) * | 2018-09-29 | 2019-01-04 | 山东大学 | A kind of electric regenerative eddy current damper |
| CN109307038A (en) * | 2018-12-12 | 2019-02-05 | 上海大学 | A kind of damper of the multilayer pole plate based on giant electro-rheological liquid shearing valve type |
| CN111173878A (en) * | 2020-01-22 | 2020-05-19 | 西北工业大学 | Self-adaptive viscous damper with self-resetting function |
| CN113833148A (en) * | 2021-10-13 | 2021-12-24 | 杨保光 | Antitorque antidetonation tensile building structure that building engineering used |
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- 2006-10-13 CN CN 200620134041 patent/CN200975034Y/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839298B (en) * | 2010-01-19 | 2012-01-04 | 谭晓婧 | Double-cylinder magneto-rheological damper |
| CN102808890A (en) * | 2011-06-02 | 2012-12-05 | 北京长城博创科技有限公司 | Composite damper with electrical connection function |
| CN102808890B (en) * | 2011-06-02 | 2014-12-24 | 北京长城博创科技有限公司 | Composite damper with electrical connection function |
| CN102287476A (en) * | 2011-07-14 | 2011-12-21 | 大连理工大学 | Multilayer fixed pole plate fluid type electro-rheological damper |
| CN103148157B (en) * | 2012-07-19 | 2016-05-18 | 吉林大学 | Multistage squash type MR damper |
| CN103148157A (en) * | 2012-07-19 | 2013-06-12 | 吉林大学 | Multistage extrusion-type magneto-rheological damper |
| CN103075459A (en) * | 2013-01-28 | 2013-05-01 | 中国矿业大学 | Double-ejection rod ring magnetic steel piston magnetorheological damper |
| CN103075459B (en) * | 2013-01-28 | 2015-05-27 | 中国矿业大学 | Double-ejection rod ring magnetic steel piston magnetorheological damper |
| CN104712702B (en) * | 2013-12-13 | 2017-04-12 | 通用汽车环球科技运作有限责任公司 | Height adjustable damping device |
| CN104712702A (en) * | 2013-12-13 | 2015-06-17 | 通用汽车环球科技运作有限责任公司 | Height adjustable damping device |
| CN103938750B (en) * | 2014-04-08 | 2016-06-15 | 同济大学 | Energy dissipation brace damping device |
| CN106907422B (en) * | 2015-12-23 | 2019-04-19 | 上海汽车集团股份有限公司 | Electrorheological fluid vibration damper and its control method, control unit, ECU and automobile |
| CN106907422A (en) * | 2015-12-23 | 2017-06-30 | 上海汽车集团股份有限公司 | Electrorheological fluid vibration damper and its control method, control unit, ECU and automobile |
| CN108533662A (en) * | 2018-04-23 | 2018-09-14 | 上海大学 | A kind of giant electro-rheological fluid damper |
| CN108571559A (en) * | 2018-07-25 | 2018-09-25 | 上海大学 | A kind of damper means of stiffness variable adaptive damping |
| CN109057070A (en) * | 2018-09-18 | 2018-12-21 | 中冶建筑研究总院（深圳）有限公司 | The symmetrical integrated double-cylinder viscous damper and application structure of the outer unstability of anti-plane |
| CN109057070B (en) * | 2018-09-18 | 2024-01-30 | 中冶建筑研究总院（深圳）有限公司 | Symmetrical integrated double-cylinder viscous damper capable of preventing out-of-plane instability and application structure |
| CN109138207A (en) * | 2018-09-29 | 2019-01-04 | 山东大学 | A kind of electric regenerative eddy current damper |
| CN109138207B (en) * | 2018-09-29 | 2020-01-21 | 山东大学 | Energy recovery type eddy current damper |
| CN109307038A (en) * | 2018-12-12 | 2019-02-05 | 上海大学 | A kind of damper of the multilayer pole plate based on giant electro-rheological liquid shearing valve type |
| CN111173878A (en) * | 2020-01-22 | 2020-05-19 | 西北工业大学 | Self-adaptive viscous damper with self-resetting function |
| CN113833148A (en) * | 2021-10-13 | 2021-12-24 | 杨保光 | Antitorque antidetonation tensile building structure that building engineering used |
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