CN108869616A - A kind of multilayer pole plate giant electro-rheological fluid damper - Google Patents
A kind of multilayer pole plate giant electro-rheological fluid damper Download PDFInfo
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- CN108869616A CN108869616A CN201811100390.4A CN201811100390A CN108869616A CN 108869616 A CN108869616 A CN 108869616A CN 201811100390 A CN201811100390 A CN 201811100390A CN 108869616 A CN108869616 A CN 108869616A
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- pressure plate
- pole plate
- plate
- end cover
- giant electro
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention discloses a kind of multilayer pole plate giant electro-rheological fluid damper.Damper includes：Outer cylinder, upper end cover, rigid rod, upper pressure plate, lower pressure plate, pole plate and giant electro-rheological liquid；Upper end cover is located at the opening of outer cylinder, and the size of upper end cover and the opening size of outer cylinder match；Upper pressure plate and lower pressure plate are located at the inside of the outer cylinder, the through-hole of identical size is provided at the center of upper end cover, upper pressure plate and lower pressure plate, upper pressure plate and lower pressure plate are outwardly convex ring block, multilayer pole plate is set between upper pressure plate and lower pressure plate, rigid rod passes through the through-hole at the center of upper end cover, upper pressure plate and lower pressure plate, each pole plate is cylinder-shaped pole plate, and pole plate is axially arranged along the rigid rod, and giant electro-rheological liquid is full of portion in the outer cylinder.Damping force is capable of increasing using the present invention, reduces the volume of damper, plays the effect of vibration and noise reducing.
Description
Technical field
The present invention relates to damper technique fields, more particularly to a kind of multilayer pole plate giant electro-rheological fluid damper.
Background technique
During military service, vibration or shock loading can seriously affect its safety and use for various buildings or mechanical structure
Service life.In structure installation can be with the damping device of passive energy dissipation reduce its vibration or shock response, increase its safety and
The effective means of stability.Traditional passive control damper (such as hydraulic damper) is only capable of providing uncontrollable damping force,
Its vibration control effect is undesirable.The intelligent damper prepared using electric/magnetic rheological body, can be by electric/magnetic field intensity
It adjusts to adjust damping force real-time continuously according to operating condition, thus realize active and the semi- active control of structural vibration or impact,
It is better protected from the failure damage of structure.And in practical projects, usually require that electro-rheological fluid damper can provide biggish damping
Power, this makes larger using the electro-rheological fluid damper volume and quality of traditional structural design.In addition, ER fluid and damper electricity
Sliding between pole plate constrains giving full play to for electro rheological fluids performance, and practical damping force is caused to be less than theoretical damping power.
Summary of the invention
The object of the present invention is to provide a kind of multilayer pole plate giant electro-rheological fluid dampers, are capable of increasing damping force, reduce resistance
The volume of Buddhist nun's device plays the effect of vibration and noise reducing.
To achieve the above object, the present invention provides following schemes：
A kind of multilayer pole plate giant electro-rheological fluid damper, the damper include：Outer cylinder, upper end cover, rigid rod, upper compression
Plate, lower pressure plate, pole plate and giant electro-rheological liquid；The upper end cover is located at the opening of the outer cylinder, the size of the upper end cover
Match with the opening size of the outer cylinder；The upper pressure plate and the lower pressure plate are located at the inside of the outer cylinder, described
The through-hole of identical size, the upper pressure plate are provided at the center of upper end cover, the upper pressure plate and the lower pressure plate
It is outwardly convex ring block with the lower pressure plate, pole plate described in multilayer is set between the upper pressure plate and the lower pressure plate,
The rigid rod passes through the through-hole at the center of the upper end cover, the upper pressure plate and the lower pressure plate, each pole plate
For cylinder-shaped pole plate, the pole plate is axially arranged along the rigid rod, and the giant electro-rheological liquid is full of portion in the outer cylinder.
Optionally, the damper further includes sealing ring, and the sealing ring is located at the company of the upper end cover and the outer cylinder
Meet place.
Optionally, the damper further includes linear bearing, and the upper end cover and the rigid rod junction are groove, institute
It states linear bearing and is located at the groove.
Optionally, the damper further includes inlet opening, and the inlet opening is set at the upper end cover.
Optionally, the inlet opening is sealed by the rubber stopper.
Optionally, the damper further includes routing hole, and the routing hole is located on the rigid rod.
Optionally, it is fixed between the upper pressure plate and the lower pressure plate by bolt and nut.
Optionally, the spacing between pole plate described in adjacent two layers is 2mm.
The specific embodiment provided according to the present invention, the invention discloses following technical effects：It is more that the present invention provides one kind
Layer pole plate giant electro-rheological fluid damper, pole plate use the form of cylinder annular surface, form electrode gap.It is determined in the size of outer cylinder
When, positive/negative plate is compact-sized, relative area is big, damping is good using cylinder-shaped；Using this novel-section of giant electro-rheological liquid
Material, the response that giant electro-rheological liquid changes with voltage is quickly；The upper pressure plate and the lower pressure plate are outwardly convex ring block, make
Obtaining polar board surface realizes pitting processing, interior in a limited space to increase the area of damp channel, and significantly reduces huge electricity
Sliding between rheology liquid and polar board surface has many advantages, such as that simple structure fast response time, light weight, small in size, power output is big.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is multilayer of embodiment of the present invention pole plate giant electro-rheological liquid damper structure schematic diagram；
Fig. 2 is bolt, liquid injection hole position view；
Fig. 3 is multilayer pole plate giant electro-rheological fluid damper top view；
Fig. 4 is pole plate installation diagram；
Fig. 5 is the top view of pole plate installation diagram；
Fig. 6 is upper pressure plate and lower pressure plate schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Electro rheological fluids are to be dispersed in the suspension liquid formed in the solvent of low-k by the little particle of high dielectric constant.
This suspension liquid can make solid particle polarize and interact under DC Electric Field in the moment of Millisecond, be formed flat
Row is in the chain or column structure of electric field, so that liquid be made to show as this structure shape of the similar solid with certain yield stress
State makes apparent viscosity increase several orders of magnitude.This effect for making fluid change state is called electric rheological effect.
Electro-rheological fluid damper is a kind of very widely used energy-eliminating shock-absorbing control device, can be used for the necks such as mechanical, building
Domain.Its control mechanism is by the way that the electric rheological effect in damper, the partial vibration energy of structure is consumed by damping material
It dissipates, achievees the purpose that alleviate the outer impact carried, reduces structural vibration, protection structure safety.
Giant electro-rheological liquid is to be dispersed in the one kind formed in the base fluid of giant electro-rheological liquid by polarizable dielectric particles to hang
Supernatant liquid, when applying electric field to it, the performances transient change such as viscosity, shear strength, the sizes such as viscosity, intensity are with electric field tune
Section is continuously adjustable, and adjustable extent is big, and even up to several orders of magnitude can be converted to high viscosity fluid, even by low viscosity fluid
Solid.After extra electric field removes, it can be restored to fluid state within the millisecond time again, this between liquid and solid
Attribute between controllable, reversible, continuous transformation, can by electric field realize torque controlled delivery and mechanism it is online it is stepless,
Reversible control can substitute traditional one mechanical switch component of electricity, in the white suitable solution mechanism industrial circle of electromechanical integration
It has a wide range of applications, is especially led in national defense construction, the vehicles, hydraulic device, machinery manufacturing industry, sensor technology etc.
Domain has more extensive application foundation and application demand, is one of the critical material that development is badly in need of in damping vibration attenuation field.
Done research work is taught according to Hong Kong University of Science and Thchnology Wen Weijia, the novel giant electro-rheological liquid developed at present exists
The yield strength that can achieve 130kPa or more under the electric field strength of 5KV/mm, can satisfy requirement of engineering completely.But it is this
The coefficient of viscosity of novel giant electro-rheological liquid is only 1/10, the only 0.1Pas that common current becomes liquid, and general electric current
Become the coefficient of viscosity of liquid as 1Pas.Therefore, under similarity condition, common current becomes the viscous damping force that liquid provides and is far longer than newly
The viscous damping forces that type giant electro-rheological liquid provides.
Fig. 1 is multilayer of embodiment of the present invention pole plate giant electro-rheological liquid damper structure schematic diagram.As shown in Figure 1, a kind of more
Layer pole plate giant electro-rheological fluid damper, the damper include：Rigid rod 1, linear bearing 2, upper end cover 3, sealing ring 4, outer cylinder
5, upper pressure plate 6, pole plate 7, lower pressure plate 8, nut 9, compression crab bolt 10, routing hole 11, bolt of cover 12, linear bearing spiral shell
Bolt 13, liquid injection hole 14 and giant electro-rheological liquid；The upper end cover 3 is located at the opening of the outer cylinder 5, the size of the upper end cover 3
Match with the opening size of the outer cylinder 5；The upper pressure plate 6 and the lower pressure plate 6 are located at the inside of the outer cylinder 5,
Be provided with the through-hole of identical size at the center of the upper end cover 3, the upper pressure plate 6 and the lower pressure plate 8, it is described on
Pressure plate 6 and the lower pressure plate 8 are outwardly convex ring block, and effect is in order to which electrode plate is isolated, electrode plate is isolated；
Between the upper pressure plate 6 and the lower pressure plate 8 be arranged multilayer described in pole plate 7, the rigid rod 1 pass through the upper end cover 3,
Through-hole at the center of the upper pressure plate 6 and the lower pressure plate 7, each pole plate 7 are cylinder-shaped pole plate, the pole plate 7
Axially it is arranged along the rigid rod, the giant electro-rheological liquid is full of inside the outer cylinder 5.
The upper end cover 3 is mutually nested with described in outer cylinder 5, and the sealing ring 4 is located at the upper end cover 3 and the outer cylinder 5
Junction.The linear bearing 2 is mounted on the groove on upper end cover 3, and is bolted by linear bearing 2.Linear axis
The main function for holding 2 has been guiding role to rigid rod, can reduce the friction of rigid rod 1 Yu upper end cover 3.The damper
It further include inlet opening, the inlet opening is set at the upper end cover.The inlet opening is sealed by the rubber stopper.The resistance
Buddhist nun's device further includes routing hole 11, is primarily used to arrangement power supply line, and the routing hole 11 is located on the rigid rod 1.On described
It is fixed between pressure plate 6 and the lower pressure plate 8 by bolt and nut.
Spacing between pole plate 7 described in adjacent two layers is 2mm, cannot be relatively moved between them.
The polarity of pole plate is in interlaced arrangement.The advantage of doing so is that keeping damper structure compact, working region is bigger, hinders
Buddhist nun's power is bigger.Polar board surface is using either physically or chemically progress surface micropore pitting processing.To pole plate plus voltage with
Afterwards, rigid rod band movable plate electrode moves up and down.Since upper pressure plate, lower pressure plate and outer cylinder cooperate, when pole plate moves up and down
When, giant electro-rheological liquid can only be flowed by the gap between pole plate.This just meets the mode of giant electro-rheological liquid flowing work.When
When voltage changes, the apparent viscosity of the giant electro-rheological liquid in outer cylinder can change, and then generate damping force.
The working principle of multilayer pole plate giant electro-rheological fluid damper provided by the invention is, according to the damping of giant electro-rheological liquid
Effect realizes vibration damping.Rigid rod band can be connected by components such as bolts with the device of vibration damping is needed.It is equipped in outer cylinder
Giant electro-rheological liquid, rigid rod mainly move up and down.When pole plate moves up and down, giant electro-rheological liquid can only be by between pole plate
Gap flowing.Under the action of extra electric field, rheological property changes liquid between pole plate, and viscosity increases, damps
Coefficient becomes larger.In this way, giant electro-rheological liquid can produce certain damping.The size of damping can with the change of voltage and
Change, semi- active control and active control may be implemented.
Fig. 2 is bolt, liquid injection hole position view；Fig. 3 is multilayer pole plate giant electro-rheological fluid damper top view；Fig. 4 is
Pole plate installation diagram；Fig. 5 is the top view of pole plate installation diagram；Fig. 6 is upper pressure plate and lower pressure plate schematic diagram.
The present invention has following advantage：
1, pole plate uses cylinder, is the form of annular surface, forms electrode gap.When the size of outer cylinder determines, positive and negative anodes
Plate is compact-sized, relative area is big, damping is good using cylinder-shaped；
2, using this new material of giant electro-rheological liquid, the response that giant electro-rheological liquid changes with voltage is quickly；
3, the damping of damper device can change with voltage, and then realize the semi- active control of damping；
4, the area of damp channel is increased in the processing in a limited space of polar board surface pitting, and significantly reduces huge electricity
Sliding between rheology liquid and polar board surface has many advantages, such as that simple structure fast response time, light weight, small in size, power output is big；
5, the apparatus structure is compact, damping is obvious and may be implemented to damp adjustable.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (8)
1. a kind of multilayer pole plate giant electro-rheological fluid damper, which is characterized in that the damper includes：Outer cylinder, upper end cover, rigidity
Bar, upper pressure plate, lower pressure plate, pole plate and giant electro-rheological liquid；The upper end cover is located at the opening of the outer cylinder, the upper end
The opening size of the size of lid and the outer cylinder matches；The upper pressure plate and the lower pressure plate are located at the interior of the outer cylinder
Portion, is provided with the through-hole of identical size at the center of the upper end cover, the upper pressure plate and the lower pressure plate, it is described on
Pressure plate and the lower pressure plate are outwardly convex ring block, are arranged described in multilayer between the upper pressure plate and the lower pressure plate
Pole plate, the rigid rod passes through the through-hole at the center of the upper end cover, the upper pressure plate and the lower pressure plate, each described
Pole plate is cylinder-shaped pole plate, and the pole plate is axially arranged along the rigid rod, and the giant electro-rheological liquid is full of in the outer cylinder
Portion.
2. multilayer pole plate giant electro-rheological fluid damper according to claim 1, which is characterized in that the damper further includes
Sealing ring, the sealing ring are located at the junction of the upper end cover and the outer cylinder.
3. multilayer pole plate giant electro-rheological fluid damper according to claim 1, which is characterized in that the damper further includes
Linear bearing, the upper end cover and the rigid rod junction are groove, and the linear bearing is located at the groove.
4. multilayer pole plate giant electro-rheological fluid damper according to claim 1, which is characterized in that the damper further includes
Inlet opening, the inlet opening are set at the upper end cover.
5. multilayer pole plate giant electro-rheological fluid damper according to claim 4, which is characterized in that the inlet opening passes through institute
State rubber stopper sealing.
6. multilayer pole plate giant electro-rheological fluid damper according to claim 1, which is characterized in that the damper further includes
Routing hole, the routing hole are located on the rigid rod.
7. multilayer pole plate giant electro-rheological fluid damper according to claim 1, which is characterized in that the upper pressure plate and institute
It states and is fixed between lower pressure plate by bolt and nut.
8. multilayer pole plate giant electro-rheological fluid damper according to claim 1, which is characterized in that pole plate described in adjacent two layers
Between spacing be 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811100390.4A CN108869616A (en) | 2018-09-20 | 2018-09-20 | A kind of multilayer pole plate giant electro-rheological fluid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811100390.4A CN108869616A (en) | 2018-09-20 | 2018-09-20 | A kind of multilayer pole plate giant electro-rheological fluid damper |
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| Publication Number | Publication Date |
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| CN108869616A true CN108869616A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811100390.4A Pending CN108869616A (en) | 2018-09-20 | 2018-09-20 | A kind of multilayer pole plate giant electro-rheological fluid damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457051A (en) * | 2020-04-29 | 2020-07-28 | 合肥工业大学 | Stack piston type electrorheological fluid shock absorber |
| CN111779790A (en) * | 2020-07-24 | 2020-10-16 | 上海大学 | Vibration damper |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5014829A (en) * | 1989-04-18 | 1991-05-14 | Hare Sr Nicholas S | Electro-rheological shock absorber |
| CN101285513A (en) * | 2008-05-07 | 2008-10-15 | 浙江骆氏实业发展有限公司 | Engines damping-variable suspending shock-absorbing device |
| CN101285514A (en) * | 2008-05-07 | 2008-10-15 | 浙江骆氏实业发展有限公司 | Damping adjustable type engines suspending shock-absorbing device |
| CN108006147A (en) * | 2017-12-04 | 2018-05-08 | 上海大学 | A kind of hybrid giant electro-rheological fluid damper of multilayer shear extrusion |
-
2018
- 2018-09-20 CN CN201811100390.4A patent/CN108869616A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5014829A (en) * | 1989-04-18 | 1991-05-14 | Hare Sr Nicholas S | Electro-rheological shock absorber |
| CN101285513A (en) * | 2008-05-07 | 2008-10-15 | 浙江骆氏实业发展有限公司 | Engines damping-variable suspending shock-absorbing device |
| CN101285514A (en) * | 2008-05-07 | 2008-10-15 | 浙江骆氏实业发展有限公司 | Damping adjustable type engines suspending shock-absorbing device |
| CN108006147A (en) * | 2017-12-04 | 2018-05-08 | 上海大学 | A kind of hybrid giant electro-rheological fluid damper of multilayer shear extrusion |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457051A (en) * | 2020-04-29 | 2020-07-28 | 合肥工业大学 | Stack piston type electrorheological fluid shock absorber |
| CN111457051B (en) * | 2020-04-29 | 2021-12-17 | 合肥工业大学 | Stack piston type electrorheological fluid shock absorber |
| CN111779790A (en) * | 2020-07-24 | 2020-10-16 | 上海大学 | Vibration damper |
| CN111779790B (en) * | 2020-07-24 | 2021-09-28 | 上海大学 | Vibration damper |
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Application publication date: 20181123 |