CN110259871A - A kind of half active magnetorheological fluid consolidates hybrid isolator - Google Patents
A kind of half active magnetorheological fluid consolidates hybrid isolator Download PDFInfo
- Publication number
- CN110259871A CN110259871A CN201910061700.4A CN201910061700A CN110259871A CN 110259871 A CN110259871 A CN 110259871A CN 201910061700 A CN201910061700 A CN 201910061700A CN 110259871 A CN110259871 A CN 110259871A
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- bellows
- magnetorheological fluid
- consolidates
- semi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 35
- 238000013016 damping Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 241001484259 Lacuna Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- F16F9/3207—Constructional features
-
- 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
Abstract
A kind of half active magnetorheological fluid consolidates hybrid isolator, belongs to low-frequency vibration control technology field, is made of vibration isolation rate and energy circulation module.Vibration isolation rate is made of bellows and MR damper, energy circulation module by bottom plate piezoelectric stack and MR damper constitute.Device mainly by bellows, loading plate, bearing connecting rod, upper end cover, lower cover, bottom plate, bolt, MR damper, it is U-shaped buckle, piezoelectric stack and flexible block form.Bearing connecting rod is connect with lower cover simultaneously with loading plate threaded connection, lower cover and bellows-welding, and bellows is to be threadedly coupled with upper end cover, is connected using U-shaped button with MR damper bolt between upper end cover and bottom plate.When load action is when loading plate, bellows is transferred to by the intermal force of connecting rod, provides stiffness variation full of incompressible liquid and Flexible element body in bellows, while MR damper provides suitable damping force, completes low frequency vibration isolation with this.
Description
Technical field
The present invention relates to a kind of half active magnetorheological fluids in low frequency vibration isolation domain to consolidate hybrid vibration isolation mechanism, and the present invention can be extensive
The control field for the low-frequency vibrations such as rail traffic, precision instrument and vehicle.
Background technique
Vibrate ubiquitous in engineering, puzzlement people's lives and harm safety.The low frequency generated such as rail traffic
Ambient vibration.For such issues that, the method that people control vibration problem for a long time has: eliminate the oscillation intensity of driving source,
It prevents from resonating, vibration isolator is installed.Due to the complexity of driving source, vibration isolator becomes the first choice that people control vibration.According to subtracting
Vibration is theoretical, onlyWhen vibrating isolation system just have a vibration isolating effect, traditional linear vibration isolator is to face intrinsic frequency low
In the case where, but be unable to satisfy the requirement carried greatly, therefore the New Type Vibration Isolator Using with high Static stiffness, low dynamic stiffness meet the tendency of and
It is raw.
Currently, the quasi- zero stiffness theory of vibration isolation based on negative stiffness and positive Stiffness is quite mature, but in engineering
The case where facing in is complicated.If rubber shock absorber is easy to aging under fully loaded transportation condition, and traditional metal spring is negative in design
Structure is complicated when rigidity mechanism, and spring is difficult to horizontal fixation, composed of external damping device can not control, wire rope spring vibration isolator according to
Opposite sliding between steel wire is to generate dry-friction damping, the problems such as the condition carried greatly faces anti-vibration performance failure.Air
Spring is several more mature in low frequency heavy duty field compared with other, and is widely used in coach luxury coach, bullet train and again now
Type mechanical device, but air spring is disadvantageous in that prolonged use gas leakage problem, its internal pressure is caused to subtract
Small, anti-vibration performance can also decrease, and air spring can generally be guaranteed using complicated Pressure monitoring and air pump
The stabilization of its internal pressure, it is also a kind of limitation to its engineer application that structure is complicated.
The present invention is used in combination using liquid-solid mixing medium and metal bellows, and liquid mixes admittedly while meeting big bearing requirements
The addition for closing medium can make rigidity that the variation of piecewise nonlinear be presented, and realize low frequency vibration isolation with this.Semi-active type magnetic current variable resistance
Buddhist nun's device changes damping by adjusting the intensity in magnetic field, can also should carry out overload protection to device to big impact；Piezo stack
Vibrational energy can effectively be collected and be converted into electric energy by heap, adjust the intensity in magnetic field in turn.
Summary of the invention
The present invention is facing displacement limitation, mechanical friction, structural strength mistake for positive and negative Stiffness vibration isolator when overloaded
The problems such as effect, invents a kind of energy circulation type semi-active type magnetorheological fluid and consolidates hybrid isolator.Use liquid-solid mixing medium can be with
Mechanical friction effectively is avoided, remains the characteristic of vibration isolator isolation low-frequency vibration.Magnetorheological fluid and piezoelectric stack are introduced,
While breaking through the limitation that vibration isolator damper can not regulate and control, the collection that piezoelectric stack can carry out energy provides magnetorheological damping
Power source required for device.
A kind of semi-active type magnetorheological fluid consolidate hybrid isolator include bellows, loading plate, upper end cover, bearing connecting rod, under
End cap, bottom plate, connecting utricle, MR damper, sealing felt collar, U-shaped button and piezoelectric stack.
Wherein, bellows, loading plate, upper end cover, lower cover, bottom plate quantity be 1；Positive wire and cathode conductor
Quantity is 2.Bearing connecting rod is 4；4, bolt；The quantity of magnet is 4.
Piezoelectric stack has 2 pieces, and every piece is made of M basal layer and N number of piezoelectric layer, wherein M and N are unequal, and
For the integer more than or equal to 10, basal layer is made of stainless steel, and piezoelectricity layer material is made of piezoelectric ceramics；
Conducting wire is connected on piezoelectric layer and basal layer respectively, conducting wire on each piezoelectric layer to form anode and lead using being connected in parallel
Line, conducting wire on each basal layer is using being connected in parallel to form cathode conductor.
Main body bellows and bellows damper are made of stainless steel 304；
Upper end cover and bellows are embedded with sealing felt collar, and upper end cover and bellows have large calibre threads.
Upper head plate has through-hole.
A kind of connection relationship that semi-active type magnetorheological fluid consolidates hybrid isolator is as follows: main body bellows and upper head plate and under
End plate is connected；Bearing connecting rod is connected with bottom plate and loading plate and connecting rod passes through upper head plate；MR damper and upper head plate, bottom
Plate is connected；Positive and negative polarity wire A is connected with piezoelectric stack；Positive wire B cathode conductor B is connected in parallel to energy collecting device；Damper
Interior magnet block is connected with positive wire, the cathode conductor in guide rod.
A kind of installation process that semi-active type magnetorheological fluid consolidates hybrid isolator is as follows:
Step 1) main body bellows is connect with upper head plate external screw thread；
Step 2) main body bellows and bottom plate weld；
Step 3) connecting rod and loading plate are threadedly coupled；
Step 4) connecting rod and bottom plate are threadedly coupled；
Step 5) connecting rod and the cooperation of upper head plate interporal lacuna；
Clearance fit between step 6) connecting rod and bellows；
Step 7) magnetic rheological liquid damper is bolted with the U-shaped button of upper head plate；
Step 8) magnetic rheological liquid damper is connect with bottom plate U-bolt；
Incompressible liquid medium and Flexible element body are full of in step 9) main body bellows；
Step 10) flexible block is connect with bed bolt；
Step 11) piezoelectric stack is as in bottom plate.
The function of the present apparatus is as follows:
Playing rigidity segmentation using incompressible liquid and Flexible element body among main body bellows reaches stiffness variation
To high quiet degree and low dynamic stiffness characteristic；Connecting rod plays intermal force, while playing the lateral displacement of limitation bellows；Loading plate is used
In the big exciting force of receiving；MR damper is for providing adjustable damping force；Flexible block plays overload protection；Piezoelectric stack
For absorbing vibrational energy, power source required for MR damper is provided.
Under the course of work of the present apparatus:
Loading plate carries weight, and exciting force input passes to bottom plate by connecting rod, and bottom plate receives exciting force and generates downwards
Displacement, bellows, which stretches, at this time shrinks, and exciting force reaches upper head plate, passes to MR damper by upper head plate and pass through damping force
Decrease pass to bottom plate output.Piezoelectric stack is on bottom plate for collecting energy.
Beneficial effect
A kind of semi-active type magnetorheological fluid is consolidated hybrid isolator and is had the following beneficial effects: compared with existing vibration isolator
1, the liquid-solid mixing medium bellows isolation mounting that the present invention uses is reached critical by the deformation of Flexible element body
The rigidity that Shi Gangdu only has bellows provides, and can provide high quiet low dynamic characteristic.
2, the MR damper that the present invention uses can adjust the power of damping force according to the power in magnetic field.Damping force
Device can be carried out being protected from excessive impact when damping force is big as connecting rod power transmission when very weak.
3, bearing connecting rod can limit the transversely deforming of bellows, make bellows always in axial work.
4, piezoelectric stack, which is located on bottom plate, can be collected into more energy.
5, structure of the invention is relatively easy, and manufacturing process is not cumbersome, at low cost and can cope with large impact, is easy to push away
Extensively.
Detailed description of the invention:
Fig. 1 is the stereochemical structure block diagram that a kind of semi-active type magnetorheological fluid of the present invention consolidates hybrid isolator
Fig. 2 is the vibration insulation structure schematic internal view that a kind of semi-active type magnetorheological fluid of the present invention consolidates hybrid isolator
Fig. 3 is the schematic perspective view that a kind of semi-active type magnetorheological fluid of the present invention consolidates hybrid isolator；
Fig. 4 is that a kind of semi-active type magnetorheological fluid of the present invention consolidates hybrid isolator piezoelectric stack placement schematic diagram
Fig. 5 is the structural representation for the MR damper that a kind of semi-active type magnetorheological fluid of the present invention consolidates hybrid isolator
Figure；
Fig. 6 is the piezoelectric stack structural schematic diagram that a kind of semi-active type magnetorheological fluid of the present invention consolidates hybrid isolator；
Description of symbols:
Figure 1A is bearing structure, B is supporting structure, C is force transferring structure, D vibration insulation structure, E are force transferring structure, F is damping
Structure, G are floor structure.
Fig. 2 H is incompressible liquid, G is Flexible element body.
Fig. 3-6 label is unified, in which: 1- loading plate, 2- bearing connecting rod, 3-U type are buckled, 4- main body bellows, and 5- is magnetorheological
Damper 6- bottom plate, 7- piezoelectric stack, 8- flexible block, 9- bottom plate, 10- upper head plate, 11- stainless steel base layer, 12- piezo stack
Heap, 13- magnet, 14- magnetorheological fluid, 15- positive and negative polarity wire A, 16- basal layer stainless steel layer, 17- piezoelectric layer, 18- positive wire
B, 19- cathode conductor B
Specific embodiment
In order to fully understand beneficial effects of the present invention, the present invention is done into one with reference to the accompanying drawings and detailed description
Step describes in detail, and the embodiment is only for explaining the present invention, does not constitute and limits to protection scope of the present invention.
Embodiment 1
This implementation describes a kind of a kind of composition for consolidating hybrid isolator for semi-active type magnetorheological fluid.
Fig. 1 illustrates the structural representation that a kind of semi-active type magnetorheological fluid consolidates hybrid isolator
As can be seen from Figure 1 A is bearing structure, B is supporting structure, C is force transferring structure, D vibration insulation structure, E are power transmission
Structure, F are damping structure, G is floor structure.
Fig. 2 illustrates a kind of semi-active type magnetorheological fluid and consolidates signal inside the vibration insulation structure of hybrid isolator.
As can be seen from Figure 2 H is incompressible liquid, G is Flexible element body, and the perfect condition of cell cube is uniform
Be arranged in vibration isolator.Liquid only can not convert oil liquid pressure for exciting force by compression.
Fig. 3 illustrates the concrete composition component that a kind of semi-active type magnetorheological fluid consolidates hybrid isolator.
It is loading plate that it includes: 1 that a kind of semi-active type magnetorheological fluid, which consolidates hybrid isolator, as can be seen from Figure 3, and 2 be that bearing connects
Bar, 3 be U-shaped button, and 4 be main body bellows, and 5 be MR damper 6 be bottom plate, and 7 be piezoelectric stack, and 8 be flexible block, and 9 are
Bottom plate, 10 be upper head plate.
Fig. 4, which illustrates a kind of semi-active type magnetorheological fluid and consolidates hybrid isolator piezoelectric stack, places schematic diagram.
As can be seen from Figure 4 piezoelectric stack is located at symmetrically placed in bottom plate and is placed in stainless steel base layer.
Fig. 5 is to illustrate a kind of structural representation for the MR damper that semi-active type magnetorheological fluid consolidates hybrid isolator
Figure.
As can be seen from Figure 5 MR damper magnet is two pairs and is arranged symmetrically, positive wire and cathode conductor installation
Among guide rod, the U-shaped ring in two end of damper is connected, and U-shaped ring and damper are connected with sealing ring.
Fig. 6 illustrates the specific structure that a kind of semi-active type magnetorheological fluid consolidates piezoelectric stack in hybrid isolator.
It is basal layer that the composition of piezoelectric stack, which includes: 16, as can be seen from Figure 6, and 17 be piezoelectric layer, and 18 be positive wire B,
19 be cathode conductor B；Basal layer is staggeredly stacked with piezoelectric layer, and positive wire is connected with piezoelectric layer, cathode conductor and basal layer phase
Even.
In conclusion a kind of semi-active type magnetorheological fluid consolidates hybrid isolator and traditional mechanical spring and air spring fills
It sets and compares, structure is simply easy for installation, and has had both the characteristic of high Static stiffness and low dynamic stiffness, use easy to spread.
The specific embodiment of the present invention is described in conjunction with attached drawing above, but the invention is not limited to
Above-mentioned specific embodiment.Any any variation made within thinking and principle of the invention, replacement etc., belong to this
The claim protection category of invention.
Claims (10)
1. a kind of semi-active type magnetorheological fluid consolidates hybrid isolator, it is characterised in that: main body bellows and upper head plate and bottom plate
It is connected；Bearing connecting rod is connected with bottom plate and loading plate and connecting rod passes through upper head plate；Upper head plate and bearing connecting rod are matched using gap
It closes；MR damper is connected with upper head plate, bottom plate；Positive and negative polarity wire is connected with piezoelectric stack；Piezoelectric stack is located at bottom plate
Internal symmetry is placed；Positive wire A and cathode conductor A are connected in parallel to energy collecting device；In magnet block and guide rod in damper
Positive wire, cathode conductor be connected.
2. loading plate carries weight, exciting force input passes to bottom plate by connecting rod, and bottom plate receives exciting force and generates position downwards
It moves, bellows, which stretches, at this time shrinks, and exciting force reaches upper head plate, passes to MR damper by upper head plate and passes through damping force
Decrease passes to bottom plate output.Piezoelectric stack is on bottom plate for collecting energy.
3. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: main body ripple
Pipe is connect with upper head plate and the used external screw thread of bottom plate, replacement Flexible element body and liquid easy to disassemble.
4. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: bearing connecting rod
With loading plate, bottom plate using threaded connection.
5. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: magnetic current variable resistance
Buddhist nun's device is connect with upper head plate, bed bolt.
6. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: bellows with
Upper end cover is connected with sealing felt collar and guarantees that liquid will not leak out.
7. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: flexible block with
Bed bolt connection is located at bottom plate lower part and provides overload protection.
8. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: piezoelectric stack
It is stacked and is constituted with basis by multi-layer piezoelectric layer, base layer material is stainless steel, and piezoelectricity layer material is piezoelectric ceramics；Piezoelectric layer is connected to
Positive wire, basal layer are connected to cathode conductor, and positive wire and cathode conductor are connected in parallel to energy collecting device.
9. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: connecting rod and wave
Line pipe clearance fit, limits the lateral displacement of bellows.
10. a kind of semi-active type magnetorheological fluid according to claim 1 consolidates hybrid isolator, it is characterised in that: bellows
The adjustable anti-vibration performance of quantity of interior Flexible element body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061700.4A CN110259871A (en) | 2019-01-23 | 2019-01-23 | A kind of half active magnetorheological fluid consolidates hybrid isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061700.4A CN110259871A (en) | 2019-01-23 | 2019-01-23 | A kind of half active magnetorheological fluid consolidates hybrid isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110259871A true CN110259871A (en) | 2019-09-20 |
Family
ID=67911718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910061700.4A Pending CN110259871A (en) | 2019-01-23 | 2019-01-23 | A kind of half active magnetorheological fluid consolidates hybrid isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259871A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501964A (en) * | 2022-04-02 | 2022-05-13 | 浙大城市学院 | Dynamic wall surface heat exchange device based on piezoelectric excitation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63158334A (en) * | 1986-12-22 | 1988-07-01 | Bridgestone Corp | Vibrationproof device |
| CN101701615A (en) * | 2009-11-20 | 2010-05-05 | 南京航空航天大学 | Bellow-type mixed medium vibration isolating and absorbing unit |
| CN103410910A (en) * | 2013-08-22 | 2013-11-27 | 兰州大学 | Adaptive damping device |
| CN105041942A (en) * | 2015-06-29 | 2015-11-11 | 上海交通大学 | Frictionless fluid damping vibration isolator |
| CN105909723A (en) * | 2016-06-13 | 2016-08-31 | 同济大学 | Anti-collapse multi-layer metal corrugated pipe solid-liquid mixed vibration isolator |
| CN107448536A (en) * | 2017-09-19 | 2017-12-08 | 福州大学 | Sensing magnetic rheological liquid damper and its control method certainly of a kind of recoverable energy |
| CN207554681U (en) * | 2017-12-07 | 2018-06-29 | 陕西汽车集团有限责任公司 | Vibration energy regeneration type magneto-rheological vibration damper |
| CN210034268U (en) * | 2019-01-23 | 2020-02-07 | 北京市劳动保护科学研究所 | Semi-active magnetorheological fluid-solid hybrid vibration isolator |
-
2019
- 2019-01-23 CN CN201910061700.4A patent/CN110259871A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63158334A (en) * | 1986-12-22 | 1988-07-01 | Bridgestone Corp | Vibrationproof device |
| CN101701615A (en) * | 2009-11-20 | 2010-05-05 | 南京航空航天大学 | Bellow-type mixed medium vibration isolating and absorbing unit |
| CN103410910A (en) * | 2013-08-22 | 2013-11-27 | 兰州大学 | Adaptive damping device |
| CN105041942A (en) * | 2015-06-29 | 2015-11-11 | 上海交通大学 | Frictionless fluid damping vibration isolator |
| CN105909723A (en) * | 2016-06-13 | 2016-08-31 | 同济大学 | Anti-collapse multi-layer metal corrugated pipe solid-liquid mixed vibration isolator |
| CN107448536A (en) * | 2017-09-19 | 2017-12-08 | 福州大学 | Sensing magnetic rheological liquid damper and its control method certainly of a kind of recoverable energy |
| CN207554681U (en) * | 2017-12-07 | 2018-06-29 | 陕西汽车集团有限责任公司 | Vibration energy regeneration type magneto-rheological vibration damper |
| CN210034268U (en) * | 2019-01-23 | 2020-02-07 | 北京市劳动保护科学研究所 | Semi-active magnetorheological fluid-solid hybrid vibration isolator |
Non-Patent Citations (1)
| Title |
|---|
| 郁永章等: "《容积式压缩机技术手册》", 机械工业出版社, pages: 1049 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501964A (en) * | 2022-04-02 | 2022-05-13 | 浙大城市学院 | Dynamic wall surface heat exchange device based on piezoelectric excitation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2842078Y (en) | Magnetic rheological elastomer frequency shift attenuator | |
| CN201173268Y (en) | MR elastomer vibration isolator | |
| CN110190778A (en) | A kind of low frequency vibration isolation and piezoelectric energy-capturing coupling device | |
| CN106594159B (en) | A kind of magneto-rheological combined suspension for realizing three-dimensional vibration isolation | |
| CN204356597U (en) | Prepressing type floating plate track vibration isolator | |
| CN108119594B (en) | Magnetorheological self-regulation vibration isolator and electric current become self-regulation vibration isolator | |
| CN103526650B (en) | Passive type power vibration reduction floating slab track structure | |
| CN201875042U (en) | Self-induction type current variable shock absorption damper | |
| CN104747651A (en) | Paralleling model semi-active vibration isolator | |
| CN108980246B (en) | Vibration isolator based on quasi-zero rigidity | |
| CN110043598B (en) | Active vibration isolator based on compounding of magnetorheological cement and metal rubber | |
| CN107152100B (en) | ATMD vibration damper with mass damping composite structure | |
| CN101968096A (en) | Self-driving magnetorheological damper | |
| CN103047332A (en) | Vibration control device with vibration isolation and absorption functions | |
| CN111677143A (en) | Vertical vibration damper for vibration isolation building | |
| CN205278220U (en) | Present and to become elastomer vibration damper by formula magnetic current based on electricity generation of piezoelectricity module | |
| CN106594157B (en) | A kind of variation rigidity mutative damp shock absorber based on intellectual material | |
| CN1610209A (en) | Rail vehicle vibrating energy piezoelectric power generating method and system thereof | |
| CN110107635B (en) | Piezoelectric vibration damper for rail transit | |
| CN101303058B (en) | Broad band damp type vibrating isolation system | |
| CN101435480A (en) | Inertial mass type vibration isolation device | |
| CN109972667A (en) | A kind of composite-structure magnetorheological elastomer negative stiffness isolator | |
| CN110259871A (en) | A kind of half active magnetorheological fluid consolidates hybrid isolator | |
| KR101593576B1 (en) | Piezoelectric magnetorheological fluid base isolator | |
| Cao et al. | Research on Quasi-zero Stiffness Vibration Isolation Technology of Distribution Transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |