CN107606041A - The type hybrid damper that MR damper and eddy current damper combine - Google Patents
The type hybrid damper that MR damper and eddy current damper combine Download PDFInfo
- Publication number
- CN107606041A CN107606041A CN201711029167.0A CN201711029167A CN107606041A CN 107606041 A CN107606041 A CN 107606041A CN 201711029167 A CN201711029167 A CN 201711029167A CN 107606041 A CN107606041 A CN 107606041A
- Authority
- CN
- China
- Prior art keywords
- damper
- piston head
- magnetic
- cylinder barrel
- machined
- 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.)
- Granted
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses the type hybrid damper that a kind of MR damper and eddy current damper combine, mainly by outer ring magnetic conduction cylinder barrel, permanent magnet, antifreeze plate, inner ring every magnetic cylinder barrel, fixes sleeve, piston rod, magnet exciting coil, piston head sleeve, piston is first-class forms.8 permanent magnets and 8 antifreeze plates are fixedly mounted in fixes sleeve, as piston rod moves together under external drive.Permanent magnet is moved in the magnetic guiding jar cylinder of outer ring, changes the magnetic flux for flowing through outer ring magnetic conduction cylinder barrel, and current vortex is produced in the magnetic guiding jar cylinder of outer ring to offset the change of magnetic flux.Vortex produces magnetic field, and attraction and repulsive force are produced between permanent magnet and outer ring magnetic conduction cylinder barrel, prevents the Relative Vibration damped during object of which movement.The present invention is by the way that MR damper and eddy current damper are combined, to change the rigidity of MR damper under identical damping force, particularly suitable for half Active vibration-reducing system using MR damper.
Description
Technical field
The present invention relates to a kind of damper, more particularly to a kind of MR damper and eddy current damper combine
Type hybrid damper.
Background technology
Currently used shock absorber is mainly made up of passive control model, Active Control Mode and semi-active control pattern.
Shock absorber based on passive control model, because its is simple in construction, cost is low, is widely used, but its damping and intrinsic
Frequency is non-adjustable, only when the vibration of vibrating object is in certain scope and its excited frequency and this Passive Mode shock absorber phase
When same or close, preferable effectiveness in vibration suppression can be only achieved；When its intrinsic frequency differs larger with excited frequency, then vibration damping is imitated
Fruit is very poor or even can be that vibration deteriorates.Shock absorber based on Active Control Mode, by the real-time monitoring vibration situation of sensor simultaneously
Feedback of the information will be measured to processor, directly provide power according to the different situations of vibration to offset power caused by vibration；Due to
Need monitoring in real time and feedback implementation needs the regular hour, the requirement to sensor and processing is higher, and needs external energy
Support that cost is higher in source.The shock absorber controlled using half aggressive mode, it is that damper itself is changed by specific method
Damping characteristic reaches required effectiveness in vibration suppression, and need not consume more extra powers.
MR damper is the representative of new half active damper, can be according to magnetic current in electromagnetism field control damping clearance
Become the rheological behavior of liquid, to reach the purpose for changing output damping force.Traditional MR damper, while damping is changed
The intrinsic frequency of its own can not be changed, i.e., can not change the rigidity of damper.And traditional stiffness variable control system, lead to
Adjustment in real time is crossed installed in the stiffness variable device of interlayer so that the rigidity of agent structure is variable according to different control programs,
So that frequency of the natural frequency of vibration of structure away from external drive, reaches the purpose for reducing structural vibration.Conventional spring-damper
The vibration insulating system of device structure, although the complex function of above-mentioned variable damping and variation rigidity can be reached, limited because structure is excessive
Its application scenario is made.
Patent ZL 200420032523.6 proposes a kind of adjustable shock absorber for medium and high classes offroad vehicle and racing car, leads to
Artificial change helical spring and associated mechanical structure are crossed, realizes that shock absorber damping force and spring rate are variable, so as to change
It is apt to vibration and impact of the road surface of different road conditions to vehicle.But in actual applications, artificial manual adjustment mechanical structure is not very
Just, and it is unsuitable for for always in the mechanism of operation.Patent ZL 201120292619.6 proposes that a kind of damping is adjustable automobile-used
Front damper, the purpose for exporting damping force is adjusted to reach by artificially changing the conducting area of delivery hole, but the damper
Rigidity can not be automatically continuously adjustable.Patent ZL 201110254088.6 proposes a kind of singly goes out bar-type magneto-rheological damper, can have
The damping of effect regulation damper, but the rigidity of damper can not be changed simultaneously.
In existing industry spot damper, it can realize that damping and rigidity continuously adjustabe almost do not have simultaneously.It is based on
This, designs a kind of damping and rigidity continuously adjustabe, and the damper that mechanical mechanism is reasonable and practical, tool are of great significance.
The content of the invention
In order to overcome MR damper rigidity traditional described in background technology big and the problem of can not adjust, the present invention carries
The type hybrid damper combined for a kind of MR damper and eddy current damper.Traditional MR damper and electric whirlpool
Damper is often separately employed in different systems, and eddy current damper and MR damper are integrated and made by present invention design
It cooperates.In eddy current damper structure, the permanent magnet group in fixes sleeve is fixed under external drive with work
Stopper rod is moved together, and permanent magnet group is moved in the magnetic guiding jar cylinder of outer ring, changes the magnetic flux for flowing through outer ring magnetic conduction cylinder barrel, therefore
Current vortex is produced in the magnetic guiding jar cylinder of outer ring to offset the change of magnetic flux.Vortex produces magnetic field, in permanent magnet and outer ring magnetic conduction
Attraction and repulsive force are produced between cylinder barrel, prevents the Relative Vibration damped during object of which movement.The present invention is by by magnetic current
Variable damping device and the mode of eddy current damper combination, it is especially suitable to reduce the rigidity of MR damper under identical damping force
Close half Active vibration-reducing system being applied to using MR damper.
The technical solution adopted for the present invention to solve the technical problems includes：It is bottom end cover (1), outer ring magnetic conduction cylinder barrel (2), tight
Gu every magnetic armature (3), permanent magnet (4), antifreeze plate (5), inner ring every magnetic cylinder barrel (6), upper end cover (7), fixes sleeve (8), piston
Bar (9), clamp nut (10), damper upper end cover (11), piston head overhead gage (12), magnet exciting coil (13), piston head sleeve
(14), piston head (15), piston head lower baffle plate (16), locking nut (17) and damper bottom end cover (18)；Damper upper end
Lid (11) is fixedly connected with inner ring every magnetic cylinder barrel (6) by screw, and damper upper end cover (11) is with inner ring every magnetic cylinder barrel (6) interior table
Face gap coordinates, and both are sealed by sealing ring；Manhole, piston rod are machined among damper upper end cover (11)
(9) coordinate with circular via clearance among damper upper end cover (11), both are sealed by sealing ring；Under piston rod (9)
End is machined with the shaft shoulder, is machined with manhole among piston head overhead gage (12), piston rod (9) lower end outer surface with piston head
Baffle plate (12) manhole gap coordinates, and piston rod (9) the lower end shaft shoulder is in close contact with piston head overhead gage (12) upper surface；
Manhole is machined among piston head (15), is coordinated with piston rod (9) lower end outer surface gap；Piston head (15) upper surface with
Piston head overhead gage (12) lower surface is in close contact；Piston head (15) is machined with toroidal cavity, for winding magnet exciting coil
(13)；Piston head (15) lower surface is in close contact with piston head lower baffle plate (16) upper surface；Add among piston head lower baffle plate (16)
Work has manhole, coordinates with piston rod (9) lower end outer surface gap, and be locked by locking nut (17)；Piston head
Radial clearance between sleeve (14) inner surface and piston head (15) outer surface forms magnetic flow liquid and flows through passage；Piston head sleeve
(14) lower end is machined with boss, in piston head lower baffle plate (16)；Piston head sleeve (14) upper end is machined with boss, installation
In the groove of piston head overhead gage (12)；Piston head sleeve (14) outer surface coordinates with inner ring every magnetic cylinder barrel (6) gap, and leads to
Sealing ring is crossed to be sealed；Inner ring is fixedly connected every magnetic cylinder barrel (6) lower surface with bottom end cover (1) by screw；Fixes sleeve (8)
Shoulder is machined with the outside of bottom；Annular permanent magnet (4) is placed with N poles-N poles, mode extremely opposite S poles-S, two permanent magnets
(4) separated between with an antifreeze plate (5), 8 antifreeze plates (5) and 8 permanent magnets (4) are sequentially arranged in fixed cover in sequence
On cylinder (8), and compressed by fastening every magnetic armature (3)；Fastening is fastened every magnetic armature (3) and fixes sleeve (8) by screw to be connected
Connect；When external drive acts on, piston rod (9) moves axially in reciprocal fashion；At the same time, the permanent magnetism being fixed in fixes sleeve (8)
As piston rod (9) moves together under external drive, permanent magnet (4) moves iron (4) in outer ring magnetic guiding jar cylinder (2), changes
The magnetic flux of outer ring magnetic conduction cylinder barrel (2) is flowed through, therefore current vortex is produced to offset magnetic flux in outer ring magnetic guiding jar cylinder (2)
Change；Vortex produces magnetic field, and attraction and repulsive force are produced between permanent magnet (4) and outer ring magnetic conduction sleeve (2), prevents object
The Relative Vibration damped in motion process, so as to change the rigidity of MR damper under equal damping force；On bottom end cover (1)
End inner surface is machined with toroidal cavity, and outer ring magnetic conduction cylinder barrel (2) is interference fitted with bottom end cover (1) upper end toroidal cavity；On
End cap (7) lower end is machined with toroidal cavity, and groove both ends inner surface is machined with internal thread；Outside outer ring magnetic conduction cylinder barrel (2) upper end
Surface Machining has external screw thread, and both, which are connected through a screw thread, is fixed together；Damper bottom end cover (18) inner surface and piston rod (9)
Lower end outer surface gap coordinates, and is sealed by sealing ring；Damper bottom end cover (18) inner surface is with inner ring every magnetic cylinder barrel
(6) gap coordinates, and is sealed by sealing ring；Damper bottom end cover (18) and bottom end cover (1) are fastenedly connected by screw.
The present invention has an advantageous effect in that compared with background technology：
（1）Eddy current damper part is using annular permanent magnet and every magnetic core in the present invention, due to every layer of annular permanent magnet
Arrangement uses Halbach magnet arrangements so that magnetic induction intensity strengthens；Relative to other magnet arrangements modes, add
Magnetic field utilization rate, improves the current vortex ability that produces, and stiffness tuning scope becomes big.
（2）MR damper and eddy current damper are combined together by the present invention, two kinds of damper concurrent workings.It is logical
Cross eddy current damper and produce vortex flow to reduce the rigidity of MR damper, and required energy is small, device is simple, control effect
Fruit is obvious.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is eddy current damper structural representation in the present invention.
Fig. 3 is Fig. 2 P portions enlarged drawing.
Fig. 4 is Fig. 2 Q portions enlarged drawing.
Fig. 5 is MR damper structural representation in the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is schematic structural view of the invention, including bottom end cover (1), outer ring magnetic conduction cylinder barrel (2), fastening are every magnetic armature (3), permanent magnetism
Iron (4), antifreeze plate (5), inner ring every magnetic cylinder barrel (6), upper end cover (7), fixes sleeve (8), piston rod (9), clamp nut (10),
Damper upper end cover (11), piston head overhead gage (12), magnet exciting coil (13), piston head sleeve (14), piston head (15), piston
Head lower baffle plate (16), locking nut (17) and damper bottom end cover (18).
Fig. 2 is eddy current damper structural representation in the present invention.Including bottom end cover (1), outer ring magnetic conduction cylinder barrel (2), tight
Gu every magnetic armature (3), annular permanent magnet (4), annular antifreeze plate (5), upper end cover (7), fixes sleeve (8), mobile piston rod
(9), clamp nut (10), damper bottom end cover (18).
Fig. 3 is Fig. 2 P portions enlarged drawing.Annular permanent magnet (4) is placed with N poles-N poles, mode extremely opposite S poles-S, two
Separated between permanent magnet (4) with an antifreeze plate (5), 8 antifreeze plates (5) and 8 permanent magnets (4) are sequentially arranged in sequence
In fixes sleeve (8), and compressed by fastening every magnetic armature (3).
Fig. 4 is Fig. 2 Q portions enlarged drawing, shows the distribution of the magnetic line of force in eddy current damper.
Fig. 5 is MR damper structural representation in the present invention.Including inner ring every magnetic cylinder barrel (6), piston rod (9), on
End cap (11), piston head overhead gage (12), magnet exciting coil (13), piston head sleeve (14), piston head (15), piston head lower baffle plate
And locking nut (17) (16).Two leads C1, C2 of magnet exciting coil (13) by the wire lead slot (101) on piston head (15) according to
The secondary fairlead (102) passed through on piston head overhead gage (12), the fairlead (103) on piston rod (9), by piston rod (9)
Fairlead (104) draw；The caused magnetic line of force starts from the magnetic core of piston head (15), is passed through via the upper end of piston head (15)
Upper end effective damping gap, into piston head sleeve (14), lower end effective damping gap is then passed through, into piston head (15)
Bottom, the magnetic core of piston head (15) is eventually passed back to, form closed-loop path.
Operation principle of the present invention is as follows：
When damper is acted on by external drive, piston rod moves axially in reciprocal fashion.At the same time, it is fixed in fixes sleeve
For permanent magnet as piston rod moves together under external drive, permanent magnet moves to change in the magnetic guiding jar cylinder of outer ring flows through outer ring
The magnetic flux of magnetic conduction cylinder barrel, therefore current vortex is produced to offset the change of magnetic flux in the magnetic guiding jar cylinder of outer ring, vortex produces magnetic
, attraction and repulsive force are produced between permanent magnet and outer ring magnetic conduction sleeve, is damped during prevention object of which movement relative
Vibration.The mode that the present invention combines by using MR damper and eddy current damper, to change magnetic under equal damping force
The rigidity of rheological damper.
Claims (1)
- A kind of 1. type hybrid damper that MR damper and eddy current damper combine, it is characterised in that including：Under End cap (1), outer ring magnetic conduction cylinder barrel (2), fastening every magnetic armature (3), permanent magnet (4), antifreeze plate (5), inner ring every magnetic cylinder barrel (6), Upper end cover (7), fixes sleeve (8), piston rod (9), clamp nut (10), damper upper end cover (11), piston head overhead gage (12), magnet exciting coil (13), piston head sleeve (14), piston head (15), piston head lower baffle plate (16), locking nut (17) and Damper bottom end cover (18)；Damper upper end cover (11) is fixedly connected with inner ring every magnetic cylinder barrel (6) by screw, damper upper end Cover (11) with inner ring every magnetic cylinder barrel (6) internal surface gaps to coordinate, both are sealed by sealing ring；Damper upper end cover (11) Centre is machined with manhole, and piston rod (9) coordinates with circular via clearance among damper upper end cover (11), and both pass through close Seal is sealed；Piston rod (9) lower end is machined with the shaft shoulder, and manhole, piston are machined among piston head overhead gage (12) Bar (9) lower end outer surface coordinates with piston head overhead gage (12) manhole gap, and piston rod (9) the lower end shaft shoulder and piston head Overhead gage (12) upper surface is in close contact；Manhole is machined among piston head (15), between piston rod (9) lower end outer surface Gap coordinates；Piston head (15) upper surface is in close contact with piston head overhead gage (12) lower surface；Piston head (15) is machined with annulus Connected in star, for winding magnet exciting coil (13)；Piston head (15) lower surface is in close contact with piston head lower baffle plate (16) upper surface； Manhole is machined among piston head lower baffle plate (16), is coordinated with piston rod (9) lower end outer surface gap, and pass through locking screw Female (17) are locked；Radial clearance between piston head sleeve (14) inner surface and piston head (15) outer surface forms magnetorheological Liquid stream is through passage；Piston head sleeve (14) lower end is machined with boss, in piston head lower baffle plate (16)；Piston head sleeve (14) upper end is machined with boss, in the groove of piston head overhead gage (12)；Piston head sleeve (14) outer surface and inner ring Coordinate every magnetic cylinder barrel (6) gap, and sealed by sealing ring；Inner ring passes through every magnetic cylinder barrel (6) lower surface and bottom end cover (1) Screw is fixedly connected；Shoulder is machined with the outside of fixes sleeve (8) bottom；Annular permanent magnet (4) is with N poles-N poles, S poles-S poles phase To mode place, separated between two permanent magnets (4) with an antifreeze plate (5), 8 antifreeze plates (5) and 8 permanent magnets (4) It is sequentially arranged in fixes sleeve (8), and is compressed by fastening every magnetic armature (3) in sequence；Fastening is every magnetic armature (3) and admittedly Determine sleeve (8) to be fastenedly connected by screw；When external drive acts on, piston rod (9) moves axially in reciprocal fashion；At the same time, Gu The permanent magnet (4) being scheduled in fixes sleeve (8) is as piston rod (9) moves together under external drive, and permanent magnet (4) is in outer ring Moved in magnetic conduction cylinder barrel (2), change the magnetic flux for flowing through outer ring magnetic conduction cylinder barrel (2), therefore produced in outer ring magnetic guiding jar cylinder (2) Current vortex is given birth to offset the change of magnetic flux；Vortex produces magnetic field, is produced between permanent magnet (4) and outer ring magnetic conduction sleeve (2) Attraction and repulsive force, the Relative Vibration damped during object of which movement is prevented, so as to magnetorheological under equal damping force to change The rigidity of damper；Bottom end cover (1) upper end inner surface is machined with toroidal cavity, outer ring magnetic conduction cylinder barrel (2) with bottom end cover (1) Hold toroidal cavity interference fit；Upper end cover (7) lower end is machined with toroidal cavity, and groove both ends inner surface is machined with interior spiral shell Line；Outer ring magnetic conduction cylinder barrel (2) upper end outer surface is machined with external screw thread, and both, which are connected through a screw thread, is fixed together；Under damper End cap (18) inner surface coordinates with piston rod (9) lower end outer surface gap, and is sealed by sealing ring；Damper bottom end cover (18) inner surface coordinates with inner ring every magnetic cylinder barrel (6) gap, and is sealed by sealing ring；Damper bottom end cover (18) and under End cap (1) is fastenedly connected by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029167.0A CN107606041B (en) | 2017-10-29 | 2017-10-29 | Hybrid damper formed by combining magneto-rheological damper and electric vortex damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029167.0A CN107606041B (en) | 2017-10-29 | 2017-10-29 | Hybrid damper formed by combining magneto-rheological damper and electric vortex damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107606041A true CN107606041A (en) | 2018-01-19 |
| CN107606041B CN107606041B (en) | 2023-06-09 |
Family
ID=61080210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711029167.0A Active CN107606041B (en) | 2017-10-29 | 2017-10-29 | Hybrid damper formed by combining magneto-rheological damper and electric vortex damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107606041B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990038A (en) * | 2019-04-25 | 2019-07-09 | 武汉理工大学 | A kind of MR damper of multilayer decompression |
| CN111252106A (en) * | 2020-01-20 | 2020-06-09 | 中车株洲电力机车有限公司 | Railway vehicle and bogie thereof |
| CN112628342A (en) * | 2020-12-22 | 2021-04-09 | 南京林业大学 | Magneto-rheological damping vibration attenuation device based on permanent magnet and vibration attenuation method thereof |
| CN112855828A (en) * | 2020-12-30 | 2021-05-28 | 哈尔滨工业大学 | Shock-absorbing damper of high-pile wharf |
| CN113638514A (en) * | 2021-08-18 | 2021-11-12 | 武汉理工大学 | Semi-active tuned mass damper based on magnetorheological elastomer |
| CN113819184A (en) * | 2021-10-09 | 2021-12-21 | 浙江大学 | Electromagnetic damper and application thereof |
| CN114165557A (en) * | 2021-11-29 | 2022-03-11 | 安徽大学 | Active-semi-active composite vibration damping system with negative stiffness characteristic |
| CN115045948A (en) * | 2022-05-31 | 2022-09-13 | 集美大学 | Dual loss reduction structure of magnetorheological fluid damper |
| CN116181833A (en) * | 2023-04-24 | 2023-05-30 | 中国科学技术大学 | Suspension device for passenger car |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040195062A1 (en) * | 2003-04-04 | 2004-10-07 | Rod Millen Special Vehicles, Inc. | Magnetorheological damper system |
| CN1603145A (en) * | 2003-10-01 | 2005-04-06 | 现代自动车株式会社 | Shock absorber for vehicle suspension |
| CN2739412Y (en) * | 2004-10-29 | 2005-11-09 | 中国民用航空学院 | Gap sealed throttling channel damper |
| CN102278409A (en) * | 2011-05-20 | 2011-12-14 | 宁波大学 | Piston-type double-coil magnetorheological damper |
| CN103557264A (en) * | 2013-11-15 | 2014-02-05 | 重庆大学 | Condition monitoring based passive magneto rheological vibration damper |
| US20150247548A1 (en) * | 2012-09-04 | 2015-09-03 | Inventus Engineering Gmbh | Magnetorheological transmission apparatus |
| CN205260715U (en) * | 2016-01-03 | 2016-05-25 | 华东交通大学 | Adopt annular permanent magnet and excitation coil to carry out compound control's magneto rheological damper |
| CN106678256A (en) * | 2017-01-19 | 2017-05-17 | 长安大学 | Magnetoelectric self-powered suspension shock absorber of electric vehicle |
| CN107061587A (en) * | 2017-05-24 | 2017-08-18 | 南京理工大学 | A kind of axial current vortex system of double-deck permanent-magnet type moves back counterrecoil mechanism |
-
2017
- 2017-10-29 CN CN201711029167.0A patent/CN107606041B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040195062A1 (en) * | 2003-04-04 | 2004-10-07 | Rod Millen Special Vehicles, Inc. | Magnetorheological damper system |
| CN1603145A (en) * | 2003-10-01 | 2005-04-06 | 现代自动车株式会社 | Shock absorber for vehicle suspension |
| CN2739412Y (en) * | 2004-10-29 | 2005-11-09 | 中国民用航空学院 | Gap sealed throttling channel damper |
| CN102278409A (en) * | 2011-05-20 | 2011-12-14 | 宁波大学 | Piston-type double-coil magnetorheological damper |
| US20150247548A1 (en) * | 2012-09-04 | 2015-09-03 | Inventus Engineering Gmbh | Magnetorheological transmission apparatus |
| CN103557264A (en) * | 2013-11-15 | 2014-02-05 | 重庆大学 | Condition monitoring based passive magneto rheological vibration damper |
| CN205260715U (en) * | 2016-01-03 | 2016-05-25 | 华东交通大学 | Adopt annular permanent magnet and excitation coil to carry out compound control's magneto rheological damper |
| CN106678256A (en) * | 2017-01-19 | 2017-05-17 | 长安大学 | Magnetoelectric self-powered suspension shock absorber of electric vehicle |
| CN107061587A (en) * | 2017-05-24 | 2017-08-18 | 南京理工大学 | A kind of axial current vortex system of double-deck permanent-magnet type moves back counterrecoil mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 周瑾;刘勇;: "模糊控制磁流变阻尼器与磁悬浮装置并联减振研究", 中国机械工程, no. 21 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990038A (en) * | 2019-04-25 | 2019-07-09 | 武汉理工大学 | A kind of MR damper of multilayer decompression |
| CN111252106A (en) * | 2020-01-20 | 2020-06-09 | 中车株洲电力机车有限公司 | Railway vehicle and bogie thereof |
| CN112628342A (en) * | 2020-12-22 | 2021-04-09 | 南京林业大学 | Magneto-rheological damping vibration attenuation device based on permanent magnet and vibration attenuation method thereof |
| CN112628342B (en) * | 2020-12-22 | 2022-04-08 | 南京林业大学 | Magneto-rheological damping vibration attenuation device based on permanent magnet and vibration attenuation method thereof |
| CN112855828B (en) * | 2020-12-30 | 2022-07-15 | 哈尔滨工业大学 | Shock absorption damper for high-pile wharf |
| CN112855828A (en) * | 2020-12-30 | 2021-05-28 | 哈尔滨工业大学 | Shock-absorbing damper of high-pile wharf |
| CN113638514A (en) * | 2021-08-18 | 2021-11-12 | 武汉理工大学 | Semi-active tuned mass damper based on magnetorheological elastomer |
| CN113819184A (en) * | 2021-10-09 | 2021-12-21 | 浙江大学 | Electromagnetic damper and application thereof |
| CN114165557A (en) * | 2021-11-29 | 2022-03-11 | 安徽大学 | Active-semi-active composite vibration damping system with negative stiffness characteristic |
| CN114165557B (en) * | 2021-11-29 | 2024-02-02 | 安徽大学 | Active-semi-active composite vibration reduction system with negative stiffness characteristic |
| CN115045948A (en) * | 2022-05-31 | 2022-09-13 | 集美大学 | Dual loss reduction structure of magnetorheological fluid damper |
| CN116181833A (en) * | 2023-04-24 | 2023-05-30 | 中国科学技术大学 | Suspension device for passenger car |
| CN116181833B (en) * | 2023-04-24 | 2023-08-29 | 中国科学技术大学 | Suspension device for passenger car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107606041B (en) | 2023-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107606041A (en) | The type hybrid damper that MR damper and eddy current damper combine | |
| CN207333558U (en) | The type hybrid damper that MR damper and eddy current damper are composed | |
| CN106969090B (en) | The magnetorheological half active torsional vibration damper integrated with active adjusted based on electromagnetism | |
| CN107191530B (en) | A kind of twin coil piston magneto-rheological liquid shimmy-damper | |
| CN108980263B (en) | It is vortexed dynamic absorber formula vibration isolator and vibration isolating method | |
| CN108019456B (en) | A kind of double main spring hydraulic mounts of the magnetorheological elastomer containing magneto | |
| CN103962883B (en) | The dynamic absorber lathe tool of mode of operation is extruded based on magnetic flow liquid | |
| CN207554681U (en) | Vibration energy regeneration type magneto-rheological vibration damper | |
| CN104500641A (en) | Birotor self-powered damper based on magnetorheological elastomers | |
| CN102121509A (en) | Magnetorheological damper with annular and disc-shaped liquid flow resistance channels simultaneously | |
| CN110043598B (en) | Active vibration isolator based on compounding of magnetorheological cement and metal rubber | |
| CN103192673A (en) | Semi-active suspension energy-regenerative device of hybrid vehicle | |
| CN108302149A (en) | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet | |
| CN207989636U (en) | A kind of MR damper with helical spring floating piston arrangement | |
| CN102364154B (en) | Passive damping adjustable magneto-rheological fluid shock absorber | |
| CN108302152B (en) | Magnetorheological damper with complex liquid flow channel structure | |
| CN105387120A (en) | Single-actuating type magneto-rheological shock absorber used for aircraft landing gear | |
| CN110094449B (en) | Low-power-consumption magnetorheological suspension based on shearing mode | |
| CN109899437A (en) | Vibration energy regeneration type magneto-rheological vibration damper | |
| CN204403256U (en) | A kind of double rotor self-powered vibration damper based on magnetic rheology elastic body | |
| CN105927701A (en) | Swing-resistant electromagnetic hybrid active actuation mechanism | |
| CN109236936A (en) | A kind of MR damper being sealed using elastic metallic bellows | |
| CN110878807B (en) | Built-in mixed mode magneto-rheological damper | |
| CN108343694A (en) | A kind of mixed type dynamic vibration absorber using bicyclic concatenation type permanent magnet | |
| CN208519107U (en) | A kind of revolving type magnetic rheologic bump leveller of more fluid courses |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |