CN208010831U - Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet - Google Patents
Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet Download PDFInfo
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- CN208010831U CN208010831U CN201820343863.2U CN201820343863U CN208010831U CN 208010831 U CN208010831 U CN 208010831U CN 201820343863 U CN201820343863 U CN 201820343863U CN 208010831 U CN208010831 U CN 208010831U
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- vibration damper
- cylinder
- storage cylinder
- liquid storage
- permanent magnet
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Abstract
External coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet are used the utility model discloses a kind of, including MR vibration damper main body, lifting lug, the MR vibration damper main body includes the working cylinder, liquid storage cylinder, dust cover being set with one heart, and the working cylinder internal clearance is ordinatedly provided with the piston with piston rod and is full of magnetorheological fluid；It is filled with magnetorheological fluid and compensation gas in the liquid storage cylinder and the liquid storage cylinder sealing mechanism and pedestal for being useful for sealing is fixedly installed in upper and lower side respectively, the piston rod top sequentially passes through the guide holder, liquid storage cylinder sealing mechanism and stretches out that working cylinder is outer to be fixedly connected with dust cover upper end, excitation unit is embedded in the dust cover, the lower end of the dust cover is provided with end cap.This hair reduces processing and assembly difficulty, has saved process time and cost, avoids the pollution to magnetorheological fluid in maintenance process；Be conducive to coil heat to distribute, avoid magnetorheological fluid since performance caused by overheat declines.
Description
Technical field
The utility model belongs to absorber technical field, and in particular to a kind of to use external coil and permanent magnet collective effect
Double-cylinder type magneto-rheological vibration damper.
Background technology
Magnetorheological fluid is a kind of can change with applied field strengths and change the intellectual material of rheological behavior, mainly by
High magnetic permeability, low hysteresis small ferromagnetic particle, non-magnetic carrier fluid and stabilizer composition.According to the magnetic current of magnetorheological fluid
Change effect, people have made magneto-rheological vibration damper.Change magnetic field intensity by changing the size of damper center line loop current, into
And change the rheological behavior of magnetorheological fluid, to make the damped coefficient of damper change, obtain continuously adjustable damping force.
Since magneto-rheological vibration damper has many advantages, such as that fast response time, controllability are good, output damping force is big, it has been widely used at present
The fields such as automobile, building and bridge.
Current magneto-rheological vibration damper coil is mainly wound in the fluting of piston circumferential direction, by being processed in piston rod
Deep hole will winding wire draw damper outside.The program is although compact-sized, but piston structure is complicated, and long in piston rod
The difficulty of processing in hole is big, high processing costs, results in involving great expense for integral vibration damping device.Meanwhile piston motion during due to
Rubbing action will generate more heat transfer, can also generate heat after being powered along with coil, be easy to cause excess calories at piston and concentrate, from
And cause magnetorheological fluid desaturation, cause damper performance to decline.
And current magneto-rheological vibration damper only has the single magnetic circuit of magnet exciting coil generation mostly, in cold situation
Under, the output damping force of damper is smaller.The output damping force of bigger in order to obtain, usually by increase piston head length into
And increasing effective damping gap length to realize, this method not only increases damper overall volume, and manufacturing cost increases.
In addition, the bushing in damper lifting lug is mostly using traditional rubber bushing at present.Though rubber bushing has good
Good reliability and durability, but since its material inherent damping characteristic is limited, to low frequency, the vibration-damping effect of large amplitude compared with
Difference.
Utility model content
One of to solve the above-mentioned problems, it is coefficient using external coil and permanent magnet that the utility model proposes a kind of
Double-cylinder type magneto-rheological vibration damper.Coil is mounted on outside working cylinder by the damper, is convenient for the installation and dismounting of coil.If coil goes out
Existing problem, can directly replace, convenient for safeguarding.And coil is mounted on to the heat dissipation for being conducive to damper on the outside of working cylinder, it extends
The working life of damper.Since coil is without piston rod, the manufacturing process of piston rod is simplified, manufacturing cost is reduced.
At the both ends of coil, which is respectively equipped with a block permanent magnet, and the magnetic field of permanent magnet and the magnetic field of the generation of coil is made to cooperate with
Effect increases in cold, the output damping force of damper.Hydraulic pressure lining is used in the lifting lug of the damper
Set, compared to traditional rubber bushing, can effective attenuation low frequency, the vibration of large amplitude.
The technical solution of the utility model is：
It is a kind of to use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet, including MR vibration damper
Main body, the lifting lug for being fixed on the MR vibration damper main body upper and lower side, the MR vibration damper main body includes by inside and outside
To the working cylinder, liquid storage cylinder, dust cover being set with one heart successively, the working cylinder internal clearance is ordinatedly provided with piston rod
Piston is simultaneously full of magnetorheological fluid, and the upper and lower side endoporus of the working cylinder is respectively arranged with guide holder and bottom supporting seat；The storage
It is filled with magnetorheological fluid and compensation gas in fluid cylinder and the liquid storage cylinder sealing mechanism for being useful for sealing is fixedly installed in upper and lower side respectively
And pedestal, it is provided with the apertures of several connection working cylinders and base intracavity on the bottom supporting seat, is provided on the pedestal
The aperture of several connection liquid storage cylinders and base intracavity, the piston rod top sequentially pass through the guide holder, liquid storage cylinder sealing
Mechanism simultaneously stretches out that working cylinder is outer to be fixedly connected with dust cover upper end, described to encourage embedded with excitation unit in the dust cover
Magnetic device includes calutron, is symmetricly set on two block permanent magnets of the calutron upper and lower side, and the calutron is led
Line is drawn by the drilling on dust cover, and the lower end of the dust cover is provided with end cap.
Further, the guide holder center is provided with the through-hole to match with the piston rod, the guide holder along axis
Periphery wall protrusion be provided with the annular flange that diameter and liquid storage cylinder bore match.
Further, it is provided with guide holder bushing in the through-hole.
Further, the liquid storage cylinder sealing mechanism includes integrally formed oil storage cylinder nut and oil seal cover, is located at oil sealing
Oil sealing in lid, the oil seal spacer ring between guide holder and oil sealing, the oil storage cylinder nut pass through screw thread and liquid storage cylinder endoporus
It is connected, sealing ring bearing is provided between oil storage cylinder nut lower face and the annular flange of the guide holder, it is described close
The O-ring seal with liquid storage cylinder and oil storage cylinder nut seal cooperation is provided on seal bearing.
Further, the upper end of the guide holder is provided with round platform portion, and oil seal spring, the oil are cased in the round platform portion
The upper end of envelope spring resists the oil seal spacer ring, and lower end resists the annular flange of the guide holder.
Further, it the excitation unit and the piston horizontal alignment in the working cylinder and keeps opposing stationary.
Further, the calutron includes the U-shaped magnetizer being inlaid in the dust cover, flush-mounted in described
Coil in the groove of magnetizer.
Further, the rod chambers and rodless cavity of several connections working cylinders are distributed along the circumference on the piston
Aperture.
Further, the lifting lug includes bracket bush, and the bracket bush uses hydraulic bushing, including outer tube, interior
The rubber spring managed, be fixedly bonded between the outer tube and inner tube, the concave part of the rubber spring and the outer seal of tube
Upper and lower two symmetrical U-shaped liquid chambers are formed, are connected by long and narrow inertia channel between two liquid chambers, the inertia channel is one
It is opened in the helicla flute on rubber spring surface and channel that outer tube is sealed to form.In lifting lug use hydraulic bushing, compared to it is traditional
Rubber bushing, can effective attenuation low frequency, the vibration of large amplitude.
Further, the bracket bush further includes limited block and two endless metal skeletons, described two annular gold
The outer circle for belonging to skeleton and the rubber spring bonds together, while being wrapped in outer tube；In the limited block is bonded in
Interior recess on pipe and positioned at upper and lower two liquid chambers.
Compared with prior art, the utility model patent has the advantages that：
1, coil is mounted on outside working cylinder, is convenient for the installation and dismounting of coil.It, can directly more if coil goes wrong
It changes, convenient for safeguarding.
2, coil is external is conducive to distributing for coil heat, does not easily lead to magnetorheological fluid overheat, is conducive to improve damper
The stability of performance.
3, since coil is without piston rod, the difficulty of processing of piston rod is reduced, process time has been saved and has been processed into
This.
4, it is acted synergistically, is increased in cold, the output damping force of damper using permanent magnet and coil.
5, using hydraulic bushing, big rigidity and big damping are provided when by low frequency, large amplitude excitation, small by high frequency
When amplitude excitations, damping value has and reduces to a certain extent, better than traditional rubber bushing in performance.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment.
Fig. 2 is the three dimensional sectional view of the utility model embodiment.
Fig. 3 is the part explosive view of the utility model embodiment.
Fig. 4 is the structural schematic diagram of the dust cover of the utility model embodiment.
Fig. 5 is the structural schematic diagram of the hydraulic bushing of the utility model embodiment.
In figure：1-hydraulic bushing；2-lifting lugs；3-dust covers；4-oil storage cylinder nuts；5-oil seal covers；6-oil sealings；
7-oil seal spacer rings；8-O-ring seals；9-sealing ring bearings；10-oil seal springs；11-guide holder bushings；12-are oriented to
Seat；13-piston rods；14-working cylinders；15-liquid storage cylinders；16-pistons；17-permanent magnets；18-magnetizers；19-coils；
20-end caps；21-inert gases；22-magnetorheological fluids；23-bottom supporting seats；24-pedestals；101-liquid chambers；102-limits
Position block；103-rubber springs；104-outer tubes；105-metallic frameworks；106-inner tubes.
Specific implementation mode
The specific implementation mode of the utility model patent is illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet, including magnetic
Rheology absorber main body, the lifting lug 2 for being fixed on the MR vibration damper main body upper and lower side, the MR vibration damper main body
Including by it is inside and outside to suit successively there are three concentric cylinder barrel：Working cylinder, liquid storage cylinder, dust cover 3,14 internal clearance of the working cylinder
It is ordinatedly provided with the piston 16 for being threaded with piston rod 13 and is full of magnetorheological fluid, be evenly distributed on the piston 16
There is the aperture of several rod chambers and rodless cavity for being connected to the working cylinder 14.The upper and lower side endoporus of the working cylinder 14 is respectively set
There are guide holder 12 and bottom supporting seat 23；It is filled with magnetorheological fluid and compensation gas in the liquid storage cylinder 15 and upper and lower side is solid respectively
Surely it is provided with the liquid storage cylinder sealing mechanism and pedestal 24 for sealing, is formed between the liquid storage cylinder 15 and working cylinder 14 of the present embodiment
Liquid storage cylinder, liquid storage cylinder is interior filled with magnetorheological fluid, but is not filled with, because top is filled with compensation gas.
The aperture of several connection working cylinders 14 and 24 inner cavity of pedestal, the pedestal 24 are provided on the bottom supporting seat 23
On be provided with the apertures of several connection liquid storage cylinders and 24 inner cavity of pedestal, excitation unit is embedded in the dust cover 3, it is described to encourage
Magnetic device includes calutron, is symmetricly set on two block permanent magnets 17 of the calutron upper and lower side, the calutron
U-shaped magnetizer 18 including being inlaid in the dust cover 3, the coil 19 in the groove of the magnetizer 18, institute
The conducting wire for stating calutron is drawn by the drilling on dust cover 3, the excitation unit and the piston in the working cylinder 14
16 horizontal alignments and keep it is opposing stationary, the lower end of the dust cover 3 is provided with end cap 20.When damper works, piston 16,
Piston rod 13 moves up and down relative to cylinder barrel together with dust cover 3.
12 center of the guide holder is provided with the through-hole to match with the piston rod 13 along axis, the guide holder 12 it is outer
Peripheral wall protrusion is provided with the annular flange that diameter matches with liquid storage cylinder bore, and guide holder bushing is provided in the through-hole
12。
The liquid storage cylinder sealing mechanism includes integrally formed oil storage cylinder nut 4 and oil seal cover 5, is located in oil seal cover 5
Oil sealing 6, the oil seal spacer ring 7 between guide holder 12 and oil sealing 6, the oil storage cylinder nut 4 pass through screw thread and liquid storage cylinder endoporus
It is connected, sealing ring bearing 9, institute is provided between 4 lower face of oil storage cylinder nut and the annular flange of the guide holder 12
State the O-ring seal 8 being provided on sealing ring bearing 9 with liquid storage cylinder and the oil storage cylinder nut 4 sealing cooperation.The guide holder
12 upper end is provided with round platform portion, is cased with oil seal spring 10 in the round platform portion, and the upper end of the oil seal spring 10 resists described
Oil seal spacer ring 7, lower end resist the annular flange of the guide holder 12.The oil storage cylinder nut 4 by the top of liquid storage cylinder 15 with
14 top of working cylinder links together, and guide holder 12 is compressed and is mounted between liquid storage cylinder 15 and working cylinder 14.The work
13 top of stopper rod sequentially passes through the guide holder 12, oil seal spacer ring 7, oil sealing 6, oil seal cover 5, oil storage cylinder nut 4 and stretches out work
Cylinder 14 is outer to be fixedly connected with 3 upper end of dust cover.
The piston 16 is made with magnetizer 18 of high permeability material, and cylinder body is made of non-magnetic or low permeability magnetic material.
The magnetic field that permanent magnet 17 is generated with coil 19 passes through working piston 16, damp channel, working cylinder 14, liquid storage cylinder 15, magnetizer 18
Closed magnetic loop is formed, and magnetic direction magnetorheological fluid at damp channel flows direction, the size of electric current in coil 19
By control system real-time control.
Two damp channels are shared in the damper：Between the internal diameter and the outer diameter of working piston 16 of the working cylinder 14
Close gap constitute first damp channel, be circumferentially evenly equipped with aperture on the piston 16, it is logical to constitute Article 2 damping
Road.When magneto-rheological vibration damper works, the piston 16 and dust cover 3 are transported relative to cylinder body up and down under the effect of external force
Dynamic, the magnetorheological fluid in the working cylinder 14 is then by damp channel to generate damping force.
The course of work of damper is as follows：
Compression travel：The piston rod 13 pushes 16 downlink of piston, 14 cavity of resorption volume reducing of working cylinder, oil pressure to increase, magnetic
Rheology liquid flows into 14 epicoele of working cylinder by the damp channel on piston 16.Since 14 epicoele of working cylinder accounts for one by piston rod 13
Determine space, the increased volume of epicoele is less than the volume of cavity of resorption reduction.Therefore a part of magnetorheological fluid passes through on bottom supporting seat 23
Through-hole from working cylinder 14 flow into liquid storage cylinder 15, to make the pressure in liquid storage cylinder 15 increase, the compensation gas on 15 top of liquid storage cylinder
Body is compressed, and energy is stored.
Extension stroke：Piston rod 13 pulls 16 uplink of piston, and 14 epicoele volume reducing of working cylinder, oil pressure increases, magnetorheological
Liquid flows into 14 cavity of resorption of working cylinder by the damp channel on piston.Similarly, due to the presence of piston rod 13, from the magnetic of epicoele inflow
Rheology liquid is not enough to be full of the increased volume of cavity of resorption, and lower intracavitary generates certain vacuum degree.Therefore a part of magnetorheological fluid passes through
Through-hole on bottom supporting seat 23 flows into working cylinder 14, to make the pressure in liquid storage cylinder 15 reduce, liquid storage cylinder from liquid storage cylinder 15
The compensation gas on top expands, and releases energy.
In the above-mentioned course of work, the intensity in magnetic field at damp channel is controlled by the size of electric current in control coil 19,
To change the rheological behavior of magnetorheological fluid in damp channel, and then change the damping force of damper, it is controllable to reach damping force
Effect.
As shown in figure 5, the lifting lug 2 includes bracket bush 1, the bracket bush 1 uses hydraulic bushing, including outer tube
104, inner tube 106, the rubber spring 103 being fixedly bonded between the outer tube 104 and inner tube 106, limited block 102 and two rings
Shape metallic framework 105, the concave part of the rubber spring 103 and the sealing of outer tube 104 form upper and lower two symmetrical U-shapeds
Liquid chamber 101 is connected by long and narrow inertia channel between two liquid chambers 101, and the inertia channel is one and is opened in 103 table of rubber spring
The channel that the helicla flute and outer tube 104 in face are sealed to form.The outer circle of two endless metal skeletons 105 and rubber spring 103 is bonded
Together, it while being wrapped in outer tube 104, metallic framework 105 is mainly used for keeping the shape of inertia channel, while to carrying
High hydraulic bushing leakproofness, durability and adjustment rigidity have certain contribution.Limited block 102 is bonded in inner tube 106 and is located at
The interior recess of upper and lower two liquid chambers 101, prevents inner tube 106 and 104 relative displacement of outer tube excessive.
Two liquid chambers 101 in the bracket bush 1 are arranged symmetrically and volume rigidity is identical, in liquid chamber 101 full of water and
The mixed liquor of ethylene glycol.When having diametrically displacement between the inner tube 106 of bracket bush 1 and outer tube 104, one of liquid chamber
Become smaller because being compressed, another liquid chamber is stretched and becomes larger, and the glycol water in liquid chamber will be logical by inertia
It is flowed back and forth between two liquid chambers in road.When liquid passes through inertia channel, energy loss is had, such bracket bush will be low
Larger damping is showed when frequency, and 10 times that common rubber bushing damps angle of lag are even higher than in specific frequency separation.
And it can decline in the damping of high band hydraulic bushing.
Original internal coil is changed to external coil by the utility model, simplifies the internal structure of magneto-rheological vibration damper,
Processing and assembly difficulty are reduced, process time and processing cost have been saved.And keep the repair of coil more convenient, it avoids
To the pollution of magnetorheological fluid in maintenance process.Coil is external to be conducive to distributing for coil heat, avoids magnetorheological fluid due to mistake
Performance caused by heat declines, and the stability of performance, extends making for magneto-rheological vibration damper when enhancing magneto-rheological vibration damper work
Use the service life.Using hydraulic bushing, big rigidity and big damping are provided when by low frequency, large amplitude excitation, is shaken by high frequency is small
When width encourages, damping value has and reduces to a certain extent, better than traditional rubber bushing in performance.
The above is preferred embodiments of the present invention, and is not limited.Person skilled in the art
Obviously it can be easy to without deviating from the technical principle of the utility model, various improvement and deformations be made to embodiment,
Therefore these improvement and deformations also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet, which is characterized in that including magnetic
Rheology absorber main body, the lifting lug (2) for being fixed on the MR vibration damper main body upper and lower side, the MR vibration damper master
Body includes by inside and outside to the working cylinder, liquid storage cylinder, dust cover (3) that are set with one heart successively, and working cylinder (14) internal clearance is matched
It is provided with the piston (16) with piston rod (13) with closing and is full of magnetorheological fluid, the upper and lower side endoporus of the working cylinder (14) is distinguished
It is provided with guide holder (12) and bottom supporting seat (23)；In the liquid storage cylinder (15) filled with magnetorheological fluid and compensation gas and on
The liquid storage cylinder sealing mechanism and pedestal (24) for being useful for sealing is fixedly installed in lower end respectively, is arranged on the bottom supporting seat (23)
The apertures for having several connection working cylinder (14) and pedestal (24) inner cavities, be provided on the pedestal (24) several connection liquid storage cylinders with
The aperture of pedestal (24) inner cavity, the piston rod (13) top sequentially pass through the guide holder (12), liquid storage cylinder sealing mechanism
And stretch out working cylinder (14) and be fixedly connected outside with dust cover upper end, excitation unit is embedded in the dust cover (3), it is described
Excitation unit includes calutron, is symmetricly set on two block permanent magnets (17) of the calutron upper and lower side, the electromagnetic installing
The conducting wire set is drawn by the drilling on dust cover (3), and the lower end of the dust cover (3) is provided with end cap (20).
2. according to claim 1 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：Guide holder (12) center is provided with the through-hole to match with the piston rod (13), the guide holder along axis
(12) periphery wall protrusion is provided with the annular flange that diameter matches with liquid storage cylinder bore.
3. according to claim 2 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：Guide holder bushing (11) is provided in the through-hole.
4. according to claim 2 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：The liquid storage cylinder sealing mechanism includes integrally formed oil storage cylinder nut (4) and oil seal cover (5), is located at oil seal cover
(5) oil sealing (6) in, the oil seal spacer ring (7) between guide holder (12) and oil sealing (6), the oil storage cylinder nut (4) pass through
Screw thread is connected with liquid storage cylinder endoporus, between oil storage cylinder nut (4) lower face and the annular flange of the guide holder (12)
It is provided with sealing ring bearing (9), is provided on the sealing ring bearing (9) and liquid storage cylinder and the oil storage cylinder nut (4) sealing
The O-ring seal (8) of cooperation.
5. according to claim 4 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：The upper end of the guide holder (12) is provided with round platform portion, and oil seal spring (10), the oil are cased in the round platform portion
The upper end of envelope spring (10) resists the oil seal spacer ring (7), and lower end resists the annular flange of the guide holder (12).
6. according to claim 2 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：It the excitation unit and piston (16) horizontal alignment in the working cylinder (14) and keeps opposing stationary.
7. according to claim 2 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：The calutron includes the U-shaped magnetizer (18) being inlaid in the dust cover (3), flush-mounted in described
Coil (19) in the groove of magnetizer (18).
8. according to claim 1 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：The rod chambers and rodless cavity of several connections working cylinders (14) are distributed along the circumference on the piston (16)
Aperture.
9. according to claim 1 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：The lifting lug (2) includes bracket bush, and the bracket bush uses hydraulic bushing, including outer tube (104), interior
Pipe (106), the rubber spring (103) being fixedly bonded between the outer tube (104) and inner tube (106), the rubber spring
(103) concave part and outer tube (104) sealing form upper and lower two symmetrical U-shaped liquid chambers (101), lead between two liquid chambers (101)
It crosses long and narrow inertia channel to be connected, the inertia channel is a helicla flute and outer tube for being opened in rubber spring (103) surface
(104) channel being sealed to form.
10. according to claim 9 use external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet,
It is characterized in that：The bracket bush further includes limited block (102) and two endless metal skeletons (105), described two annulars
Metallic framework (105) and the outer circle of the rubber spring (103) bond together, while being wrapped in outer tube (104)；It is described
Limited block (102) be bonded in inner tube (106) and positioned at the interior recess of upper and lower two liquid chambers (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343863.2U CN208010831U (en) | 2018-03-13 | 2018-03-13 | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343863.2U CN208010831U (en) | 2018-03-13 | 2018-03-13 | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet |
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| Publication Number | Publication Date |
|---|---|
| CN208010831U true CN208010831U (en) | 2018-10-26 |
Family
ID=63888694
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820343863.2U Expired - Fee Related CN208010831U (en) | 2018-03-13 | 2018-03-13 | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302149A (en) * | 2018-03-13 | 2018-07-20 | 华南理工大学 | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet |
| CN113757297A (en) * | 2021-09-09 | 2021-12-07 | 重庆交通大学 | Magnetorheological damper based on U-shaped coil |
-
2018
- 2018-03-13 CN CN201820343863.2U patent/CN208010831U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302149A (en) * | 2018-03-13 | 2018-07-20 | 华南理工大学 | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet |
| CN113757297A (en) * | 2021-09-09 | 2021-12-07 | 重庆交通大学 | Magnetorheological damper based on U-shaped coil |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20210313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |