CN108980272B - Dynamic vibration absorber - Google Patents
Dynamic vibration absorber Download PDFInfo
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- CN108980272B CN108980272B CN201810951077.5A CN201810951077A CN108980272B CN 108980272 B CN108980272 B CN 108980272B CN 201810951077 A CN201810951077 A CN 201810951077A CN 108980272 B CN108980272 B CN 108980272B
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- dynamic vibration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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- Combustion & Propulsion (AREA)
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- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
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Abstract
The invention discloses a dynamic vibration absorber which comprises a first vibration absorbing assembly and a second vibration absorbing assembly, wherein the first vibration absorbing assembly comprises an upper mass block and an elastic support, the upper mass block is detachably arranged on the elastic support, the second vibration absorbing assembly comprises a rubber block and a lower mass block, the lower mass block is positioned in the elastic support, the rubber block is arranged between the elastic support and the lower mass block, and the rubber block is detachably connected with the lower mass block; the two-stage series dynamic vibration absorber has the advantages that the first vibration absorption component and the second vibration absorption component are combined to form the two-stage series dynamic vibration absorber, and the two-stage series dynamic vibration absorber has the advantages of wide vibration absorption bandwidth, good vibration absorption effect and good robustness; the upper mass block, the rubber block and the lower mass block are detachably connected, so that the adjustable mass of the invention is ensured, and the adjustable rigidity of the invention is ensured by the detachable connection mode of the elastic support, thereby realizing the adjustable inherent frequency; the single-stage frequency-adjustable dynamic vibration absorber can be changed into a single-stage frequency-adjustable dynamic vibration absorber according to requirements, and the use is more flexible.
Description
Technical Field
The invention relates to the technical field of automobile shock absorbers, in particular to a dynamic vibration absorber.
Background
Dynamic vibration absorbers have been developed to date as an important component of automobiles. Usually, a dynamic vibration absorber is mounted on parts such as a frame, a chassis and a steering wheel which have large vibration or cause noise in a vehicle, so as to attenuate the vibration of the structure to the maximum extent, thereby meeting the NVH performance of the whole vehicle.
At present, a common dynamic vibration absorber is formed by combining a mass block and a rubber block, the vibration reduction bandwidth is narrow, the vibration reduction effect is not ideal, and when the interference frequency changes greatly, the vibration reduction effect of the vibration absorber is greatly reduced. In recent years, some dynamic vibration absorbers with adjustable rigidity have appeared, and the principle of the dynamic vibration absorbers is to change the mass or the rigidity of the vibration absorbers to realize the change of the natural frequency, for example, a dynamic vibration absorber disclosed in chinese application No. 201510586596.2 includes a mass block, a base, a rubber block and a clamp, the mass block and the base are respectively fixed at two ends of the rubber block, the clamp includes an arc-shaped elastic clamp piece, two ends of the elastic clamp piece are fixed with connecting lugs, the clamp is fixed on the outer surface of the rubber block, and the two connecting lugs are connected by a bolt structure. The structure changes the clamping degree of the hoop to rubber by changing the distance between the two free ends, thereby realizing the continuous change of the rubber rigidity and the continuous change of the natural frequency. Although the dynamic vibration absorber with the structure has the advantages of simple structure, convenient use and quick adjustment, the vibration absorber with the structure has narrower vibration reduction bandwidth, smaller vibration reduction amplitude and relatively poorer stability.
The Chinese patent number 201621129817.X is an adjustable frequency dynamic vibration absorber, which comprises a connecting seat and a plurality of strip-shaped rubber blocks, wherein a mass block is arranged on the connecting seat, a plurality of grooves with the same length are respectively and uniformly arranged at the upper end and the lower end of the mass block, and each rubber block can be inserted into each groove; the spring-mass system meeting the requirements on the vibration absorption performance of the base body under different frequencies is formed by installing rubber elastic blocks with different rigidity and mass blocks with different masses. The adjustable natural frequency can meet different requirements and realize the function of one object for multiple purposes, but the single-stage vibration absorbers have limited vibration reduction effect and narrower vibration reduction bandwidth, and in the working process, if the frequency excited by the outside has a larger variation range, the working performance is greatly reduced and the stability is poor.
Disclosure of Invention
The invention aims to provide a dynamic vibration absorber which is convenient to use, adjustable in natural frequency, good in vibration reduction effect and good in robustness.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a dynamic vibration absorber, includes first vibration absorbing component and second vibration absorbing component, first vibration absorbing component include quality piece and elastic support, last quality piece detachable install elastic support on, the second vibration absorbing component include block rubber and lower quality piece, lower quality piece be located elastic support in, elastic support with lower quality piece between be provided with the block rubber, the block rubber with lower quality piece detachable connection.
Further, the elastic support including be used for the installation last quality piece the crossbeam portion and fix the installation department at crossbeam portion both ends, the installation department be used for with treat the damping headtotail, crossbeam portion include intermediate junction board and polylith buckle, the both ends symmetry of intermediate junction board be provided with first connecting arm, a tip of buckle transversely be provided with inside sunken first recess, another tip of buckle be provided with the second linking arm, first connecting arm with second linking arm structure the same, first connecting arm with first recess phase-match, first connecting arm insert the second linking arm first recess and fixed through elastic component. The elastic support comprises a beam part and mounting parts fixed at two ends of the beam part, the beam part comprises a middle connecting plate and a plurality of concave-convex plates, and the rigidity of the elastic support can be adjusted by changing the number of the concave-convex plates, so that the natural frequency of the vibration damping device is changed to achieve a proper vibration damping effect, and the vibration damping device has the advantage of being flexibly adjustable.
Furthermore, the upper mass block is fixed on the middle connecting plate through a screw rod, a first mounting through hole matched with the screw rod is formed in the middle connecting plate, and a screw hole matched with the screw rod is formed in the upper mass block. The connection mode of the mass block and the elastic support is reversible threaded connection, so that the size of the upper mass block can be adjusted, and the frequency can be adjusted.
Furthermore, the middle connecting plate comprises a left connecting plate and a right connecting plate, wherein one of the first connecting arm is fixedly connected with one end of the left connecting plate, the other end of the left connecting plate is provided with a clamping arm, the upper clamping arm is provided with an upper through hole matched with the screw rod, the other first connecting arm is fixedly connected with one end of the right connecting plate, the other end of the right connecting plate is provided with a lower clamping arm, the lower clamping arm is provided with a lower through hole matched with the screw rod, the left connecting plate and the right connecting plate are butted left and right, the upper clamping arm and the lower clamping arm are vertically overlapped, and at the moment, the upper through hole and the lower through hole are coaxially arranged and are combined into the first mounting through hole. The elastic support can only use the left half support or the right half support, is suitable for a single-stage shock absorber, can reduce the mass so as to be suitable for a secondary shock absorber, and has the advantage of wide application range.
Furthermore, the elastic assembly comprises an upper circular fixture block, a lower circular fixture block and an elastic reset piece arranged between the fixture blocks, a limiting hole matched with the fixture blocks is formed in the first connecting arm/the second connecting arm, first tapered holes with two small ends and a large middle are respectively formed in the side walls of the two sides of the first groove, the diameter of each first tapered hole is smaller than the diameter of the fixture block, after the elastic assembly is pressed into the first connecting arm/the second connecting arm, the first connecting arm/the second connecting arm is inserted into the first groove in place, the elastic assembly is sprung to clamp the first groove, and at the moment, the limiting hole and the first tapered holes are coaxially arranged. Has the advantage of good clamping effect; the side walls of the two sides of the first groove are respectively provided with a first conical hole with two small ends and a large middle part, the first conical holes play a role in limiting the fixture block, and the fixture block is prevented from popping out of the limiting holes under the action of the elastic resetting piece; the elastic reset piece can be a spring or a V-shaped steel sheet arranged transversely.
Further, the installation department including last installation arm, connecting block and be used for with wait the lower installation arm that damping system is connected, a tip of last installation arm be provided with second linking arm assorted second recess, the lateral wall of both sides of second recess on be provided with the big second taper hole in the middle of the both ends is little respectively, the second linking arm pass through elastic component fix last installation arm on, the connecting block slope set up last installation arm with lower installation arm between, lower installation arm on be provided with second installation through-hole.
Furthermore, the rubber block is compressed tightly and fixed through the connecting cover plate on the lower mass block, the lower end of the rubber block is provided with a flange extending outwards, the lower mass block is provided with a limiting groove matched with the flange, the middle part of the connecting cover plate is provided with a third mounting through hole matched with the outer ring of the rubber block, the diameter of the third mounting through hole is smaller than the outer diameter of the flange, and the connecting cover plate is fixed on the lower mass block through a bolt. The flange of the rubber block is inserted into the limiting groove and is compressed through the connecting cover plate, so that the rubber block can be detached, and the lower mass blocks with different sizes and specifications can be replaced.
Further, the connecting cover plate comprises a left half cover plate and a right half cover plate, a left half hole is formed in the left half cover plate, a right half hole is formed in the right half cover plate, and the third mounting through hole is formed by the left half cover plate and the right half cover plate in a mutually-connected mode. The rubber block is convenient to mount, the large contact area between the connecting cover plate and the flange is ensured, the flange can be pressed, and the flange is prevented from being broken or torn.
Furthermore, the flange is provided with an annular protrusion extending upwards, and a third groove matched with the annular protrusion is formed in the lower bottom surface of the connecting cover plate. The rubber block is better fixed on the lower mass block.
Further, the bottom level of screw rod be provided with the mounting panel, the lower bottom surface of mounting panel with the upper surface fixed connection of block rubber.
Compared with the prior art, the invention has the advantages that the invention discloses a dynamic vibration absorber, which comprises a first vibration absorbing component consisting of an upper mass block and an elastic support, and a second vibration absorbing component consisting of a rubber block and a lower mass block, wherein the upper mass block is arranged on the elastic support; the upper mass block is detachably arranged on the elastic support, the rubber block is detachably connected with the lower mass block, so that the mass of the adjustable vibration damper is ensured to be adjustable, and the rigidity of the adjustable vibration damper is ensured to be adjustable by the detachable connection mode of the elastic support, so that the adjustable natural frequency is realized, and the adjustment range is larger; when the working environment of the vibration absorber is stable (the external excitation changes little), the vibration absorber can be changed into a single-stage frequency-adjustable dynamic vibration absorber according to requirements, and the vibration absorber is more flexible to use; the invention can improve the adaptability of the dynamic vibration absorber, namely the same dynamic vibration absorber can be used for different automobile parts through frequency adjustment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is an enlarged view at B in FIG. 3;
fig. 6 is a schematic view of the structure of a relief plate according to the invention;
FIG. 7 is an exploded view of the intermediate connecting plate of the present invention;
fig. 8 is an exploded view of the attachment cover of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The first embodiment is as follows: as shown in fig. 1-7, a dynamic vibration absorber comprises a first vibration absorbing assembly and a second vibration absorbing assembly, wherein the first vibration absorbing assembly comprises an upper mass block 1 and an elastic support 2, the upper mass block 1 is detachably mounted on the elastic support 2, the second vibration absorbing assembly comprises a rubber block 3 and a lower mass block 4, the lower mass block 4 is positioned in the elastic support 2, the rubber block 3 is arranged between the elastic support 2 and the lower mass block 4, and the rubber block 3 is detachably connected with the lower mass block 4.
Example two: as shown in fig. 1-3, a dynamic vibration absorber comprises a first vibration absorbing assembly and a second vibration absorbing assembly, wherein the first vibration absorbing assembly comprises an upper mass block 1 and an elastic support 2, the upper mass block 1 is detachably mounted on the elastic support 2, the second vibration absorbing assembly comprises a rubber block 3 and a lower mass block 4, the lower mass block 4 is positioned in the elastic support 2, the rubber block 3 is arranged between the elastic support 2 and the lower mass block 4, and the rubber block 3 is detachably connected with the lower mass block 4.
In this embodiment, as shown in fig. 4 and 6, the elastic support 2 includes a beam portion 5 for mounting the mass block 1 and mounting portions 6 fixed at two ends of the beam portion 5, the mounting portions 6 are used for connecting with a system to be damped, the beam portion 5 includes an intermediate connecting plate 51 and a plurality of concave-convex plates 52, first connecting arms 511 are symmetrically disposed at two ends of the intermediate connecting plate 51, an end of each concave-convex plate 52 is transversely provided with a first concave groove 521 which is concave inwards, the other end of each concave-convex plate 52 is provided with a second connecting arm 522, the first connecting arm 511 and the second connecting arm 522 are identical in structure, the first connecting arm 511 and the first concave groove 521 are matched, and the first connecting arm 511/the second connecting arm 522 are inserted into the first concave groove 521 and fixed by the elastic assembly 7.
In this embodiment, the upper mass 1 is fixed on the middle connecting plate 51 by the screw 8, the middle connecting plate 51 is provided with a first mounting through hole matched with the screw 8, and the upper mass 1 is provided with a screw hole (not shown) matched with the screw 8.
In this embodiment, the elastic assembly 7 includes two circular latch blocks 71 and an elastic restoring member 72 disposed between the latch blocks 71, and the elastic restoring member 72 may be a spring or a V-shaped steel plate disposed transversely; the first connecting arm 511/the second connecting arm 522 is provided with a limiting hole 511a or 522a matched with the fixture block 71, the side walls of the two sides of the first groove 521 are respectively provided with a first tapered hole 521a with two small ends and a large middle part, the diameter of the first tapered hole 521a is smaller than the diameter of the fixture block 71, after the elastic component 7 is pressed into the first connecting arm 511/the second connecting arm 522, the elastic component 7 is sprung open and clamped after the first connecting arm 511/the second connecting arm 522 is inserted into the first groove 521 in place, and at this time, the limiting hole 511a or 522a is coaxially arranged with the first tapered hole 521 a.
In this embodiment, the mounting portion 6 includes an upper mounting arm 61, a connecting block 62 and a lower mounting arm 63 for connecting with a system to be damped, one end of the upper mounting arm 61 is provided with a second groove 611 matching with the second connecting arm 522, two side walls of the second groove 611 are respectively provided with a second tapered hole 611a with two small ends and a large middle part, the second connecting arm 522 is fixed on the upper mounting arm 61 through an elastic component 7, the connecting block 62 is obliquely arranged between the upper mounting arm 61 and the lower mounting arm 63, and the lower mounting arm 63 is provided with a second mounting through hole 631.
In this embodiment, as shown in fig. 5, the rubber block 3 is fixed on the lower mass block 4 by pressing the connecting cover plate 9, the lower end of the rubber block 3 is provided with a flange 31 extending outward, the lower mass block 4 is provided with a limiting groove 41 matching with the flange 31, the middle part of the connecting cover plate 9 is provided with a third mounting through hole 91 matching with the outer ring of the rubber block 3, the diameter of the third mounting through hole 91 is smaller than the outer diameter of the flange 31, and the connecting cover plate 9 is fixed on the lower mass block 4 by bolts.
Example three: the other parts are the same as the embodiment, and the differences are that: as shown in fig. 7, the middle connection plate 51 includes a left connection plate 512 and a right connection plate 513, wherein one of the first connection arms 511 is fixedly connected with one end of the left connection plate 512, the other end of the left connection plate 512 is provided with an upper clamping arm 5121, the upper clamping arm 5121 is provided with an upper through hole 5121a matched with the screw 8, the other first connection arm 511 is fixedly connected with one end of the right connection plate 513, the other end of the right connection plate 513 is provided with a lower clamping arm 5131, the lower clamping arm 5131 is provided with a lower through hole 5131a matched with the screw 8, after the left connection plate 512 and the right connection plate 513 are butted left and right, the upper clamping arm 5121 and the lower clamping arm 5131 are overlapped up and down, at this time, the upper through hole 5121a and the lower through hole 5131a are coaxially arranged.
Example four: the other parts are the same as the second embodiment or the third embodiment, and the differences are as follows: as shown in fig. 8, the connection cover plate 9 includes a left half cover plate 92 and a right half cover plate 93, a left half hole 921 is provided on the left half cover plate 92, a right half hole 931 is provided on the right half cover plate 93, and the third installation through hole 91 is defined by the left half cover plate 92 and the right half cover plate 93 being abutted to each other.
In this embodiment, the flange 31 is provided with an upwardly extending annular protrusion 311, and the lower bottom surface of the connecting cover plate 9 is provided with a third groove (not shown) which is matched with the annular protrusion 311.
Example five: the other parts are the same as the fourth embodiment, and the differences are that: the bottom of the screw 8 is horizontally provided with a mounting plate 81, and the lower bottom surface of the mounting plate 81 is fixedly connected with the upper surface of the rubber block 3.
When in use, only the first damping assembly or the second damping assembly can be used independently.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a dynamic vibration absorber which characterized in that includes first vibration absorbing component and second vibration absorbing component, first vibration absorbing component include quality piece and elastic support, last quality piece detachable install elastic support on, the second vibration absorbing component include block rubber and lower quality piece, lower quality piece be located elastic support in, elastic support with lower quality piece between be provided with the block rubber, the block rubber with lower quality piece detachable connection.
2. The dynamic vibration absorber according to claim 1, wherein said elastic support comprises a beam portion for mounting said upper mass block and mounting portions fixed to both ends of said beam portion, said mounting portions being adapted to be connected to a system to be damped, said beam portion comprising a middle connecting plate and a plurality of concave-convex plates, first connecting arms symmetrically disposed at both ends of said middle connecting plate, a first concave groove transversely disposed at one end of said concave-convex plate, a second connecting arm disposed at the other end of said concave-convex plate, said first connecting arm having the same structure as said second connecting arm, said first connecting arm being matched with said first concave groove, said first connecting arm/said second connecting arm being inserted into said first concave groove and fixed by an elastic assembly.
3. The dynamic vibration absorber of claim 2 wherein said upper mass is secured to said intermediate connecting plate by a threaded rod, said intermediate connecting plate having a first mounting hole for receiving said threaded rod, said upper mass having a threaded hole for receiving said threaded rod.
4. The dynamic vibration absorber according to claim 3, wherein said intermediate connecting plate comprises a left connecting plate and a right connecting plate, one of said first connecting arms is fixedly connected to one end of said left connecting plate, the other end of said left connecting plate is provided with a locking arm, said upper locking arm is provided with an upper through hole matching with said screw rod, the other of said first connecting arms is fixedly connected to one end of said right connecting plate, the other end of said right connecting plate is provided with a lower locking arm, said lower locking arm is provided with a lower through hole matching with said screw rod, after said left connecting plate and said right connecting plate are left-right butted, said upper locking arm and said lower locking arm are overlapped up and down, at this time, said upper through hole and said lower through hole are coaxially provided and combine into said first mounting through hole.
5. The dynamic vibration absorber according to claim 2 or 4, wherein the elastic assembly comprises two circular fixture blocks and an elastic reset member disposed between the fixture blocks, the first connecting arm/the second connecting arm are provided with limiting holes matching with the fixture blocks, the side walls of the two sides of the first recess are respectively provided with first tapered holes with two small ends and a large middle part, the diameter of the first tapered holes is smaller than the diameter of the fixture blocks, after the elastic assembly is pressed into the first connecting arm/the second connecting arm, the first connecting arm/the second connecting arm is inserted into the first recess in place, the elastic assembly is sprung open and clamped, and at this time, the limiting holes and the first tapered holes are coaxially disposed.
6. The dynamic vibration absorber according to claim 2, wherein said mounting portion comprises an upper mounting arm, a connecting block and a lower mounting arm for connecting with the system to be damped, a second groove matching with said second connecting arm is provided at one end of said upper mounting arm, two side walls of said second groove are respectively provided with a second tapered hole with two small ends and a large middle, said second connecting arm is fixed on said upper mounting arm through said elastic component, said connecting block is obliquely disposed between said upper mounting arm and said lower mounting arm, and said lower mounting arm is provided with a second mounting through hole.
7. The dynamic vibration absorber according to claim 2, wherein said rubber mass is fixed onto said lower mass by pressing with a connecting cover plate, the lower end of said rubber mass is provided with an outwardly extending flange, said lower mass is provided with a stopper groove matching said flange, the middle of said connecting cover plate is provided with a third mounting through hole matching the outer ring of said rubber mass, the diameter of said third mounting through hole is smaller than the outer diameter of said flange, and said connecting cover plate is fixed onto said lower mass by bolts.
8. The dynamic vibration absorber according to claim 7, wherein said connection cover comprises a left cover half and a right cover half, said left cover half having a left circular hole, said right cover half having a right circular hole, said third through hole being defined by said left cover half and said right cover half abutting each other.
9. The dynamic vibration absorber of claim 7 wherein said flange has an upwardly extending annular protrusion and said attachment cover has a lower surface having a third recess for engaging said annular protrusion.
10. The dynamic vibration absorber of claim 3 wherein said screw has a mounting plate horizontally disposed at the bottom thereof, the lower bottom surface of said mounting plate being fixedly attached to the upper surface of said rubber block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810951077.5A CN108980272B (en) | 2018-08-21 | 2018-08-21 | Dynamic vibration absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810951077.5A CN108980272B (en) | 2018-08-21 | 2018-08-21 | Dynamic vibration absorber |
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| CN108980272A CN108980272A (en) | 2018-12-11 |
| CN108980272B true CN108980272B (en) | 2020-06-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109578510B (en) * | 2018-12-17 | 2020-09-15 | 重庆大学 | Intelligent undamped dynamic vibration reduction system |
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|---|---|---|---|---|
| CN103867636A (en) * | 2014-03-27 | 2014-06-18 | 北京航空航天大学 | Tuned passive damper with two degrees of freedom |
| CN206246586U (en) * | 2016-10-17 | 2017-06-13 | 广东技术师范学院 | A kind of Frequency Adjustable formula dynamic vibration absorber |
| CN207274314U (en) * | 2017-10-16 | 2018-04-27 | 北京汽车研究总院有限公司 | A kind of bump leveller and there is its vehicle |
| CN207661040U (en) * | 2017-10-30 | 2018-07-27 | 广东技术师范学院 | Dynamic vibration absorber is easily adjusted based on Frequency Adjustable |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4323673B2 (en) * | 1999-12-01 | 2009-09-02 | 株式会社ブリヂストン | Vibration isolator |
| KR20070061706A (en) * | 2005-12-10 | 2007-06-14 | 기아자동차주식회사 | Damper |
| JP2007263181A (en) * | 2006-03-27 | 2007-10-11 | Tokai Rubber Ind Ltd | Dynamic damper |
| US8960390B2 (en) * | 2009-01-20 | 2015-02-24 | Honda Motor Co., Ltd. | Vehicle-mounted active vibration reducing device |
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2018
- 2018-08-21 CN CN201810951077.5A patent/CN108980272B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867636A (en) * | 2014-03-27 | 2014-06-18 | 北京航空航天大学 | Tuned passive damper with two degrees of freedom |
| CN206246586U (en) * | 2016-10-17 | 2017-06-13 | 广东技术师范学院 | A kind of Frequency Adjustable formula dynamic vibration absorber |
| CN207274314U (en) * | 2017-10-16 | 2018-04-27 | 北京汽车研究总院有限公司 | A kind of bump leveller and there is its vehicle |
| CN207661040U (en) * | 2017-10-30 | 2018-07-27 | 广东技术师范学院 | Dynamic vibration absorber is easily adjusted based on Frequency Adjustable |
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