CN107696789A - A kind of dynamic absorber formula wheel noise reduction block and noise-reduction method - Google Patents
A kind of dynamic absorber formula wheel noise reduction block and noise-reduction method Download PDFInfo
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- CN107696789A CN107696789A CN201710981730.8A CN201710981730A CN107696789A CN 107696789 A CN107696789 A CN 107696789A CN 201710981730 A CN201710981730 A CN 201710981730A CN 107696789 A CN107696789 A CN 107696789A
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- sounding board
- damping layer
- elastomeric damping
- mass fraction
- noise reduction
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
- B60B17/0006—Construction of wheel bodies, e.g. disc wheels
- B60B17/0024—Construction of wheel bodies, e.g. disc wheels with noise reducing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/133—Noise
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A kind of dynamic absorber formula wheel noise reduction block and noise-reduction method, wheel noise reduction block includes rigid support and elastomeric damping layer, mounting hole is provided with rigid support, rigid support includes installing plate, sounding board and intermediate, sounding board includes elastic part and mass fraction, elastic part and mass fraction are alternately distributed, and elastomeric damping layer is alternately distributed with sounding board.Wheel in the process of running, under the incentive action of external force, can cause violent resonance, and generally extraneous excitation is extremely complex that therefore, vibration is multi-modes vibration frequency caused by wheel.The present invention by dividing flexible part and mass fraction along its length by the sounding board of rigid support, the thickness of elastic part is less than the thickness of mass fraction, form multiple natural frequency vibration subsystems, and by vibrate subsystem multiple intrinsic frequencies adjust it is close to multi-modes vibration frequency when being run with wheel, so as to which effect of vibration and noise reduction be greatly enhanced.
Description
Technical field
The present invention relates to a kind of device that vibration damping, noise reduction are carried out to wheel, and in particular to a kind of drop on wheel
Make an uproar block.
Background technology
During train driving, wheel rolls in orbit, because surface roughness and wheel track tread are uneven, excites wheel
Modal vibration responds, and produces judder and construct noise, and be radiated air borne through wheel surface.If by a kind of noise reduction knot
Structure or material are arranged on wheel, by suppressing vibration noise source energy, can reach the purpose for reducing wheel noise radiation levels.
Wheel noise reduction prior art mainly has following 4 kinds：Wheel damping device, wheel noise reduction plate, wheel noise reduction ring, elastic car
Wheel.
Wherein, it is wheel damping device with the immediate prior art of the present invention.Through retrieval, there are two disclosed patents the country
" CN201620760079.2 wheels multilayer damper " and " CN201610568521.6 wheels multilayer damper and damping side
Method ", its technical scheme and architectural feature are：A kind of wheel multilayer damper, its structure composition include installing plate（1）, constraint
Layer（2）, pad（4）And damping rubber（3）, installing plate, restraint layer, pad and damping rubber composition damper（9）, damper leads to
Cross bolt（10）Even structure annular in shape is arranged on wheel（8）On dovetail groove in, restraint layer and pad are alternatively formed interlayer
Structure, upper arcuate end face and the installing plate of sandwich are welded, caused space damping rubber in sandwich
It is filled, damping rubber bonds together with restraint layer.Wherein every layer of steel plate thickness difference of restraint layer, and pad and damping
The thickness all same of rubber, each thickness degree of damper and the number of plies determine according to the intrinsic frequency of wheel.Damper is arranged in car
On the inside of wheel tread, and the damper number installed is even number.Damper uses dynamic vibration absorber principle, and each restraint layer has not
Same rigidity and quality, the effect of damping rubber, while the damping can be played to greatest extent during unsteadiness of wheels
Device is arranged on the inside of wheel tread by bolt, and the radial direction that wheel can be greatly reduced in the case where not influenceing traffic safety is shaken
It is dynamic, so as to reduce radiated noise.
Although above-mentioned immediate also disclose that in the prior art is come together vibration damping, drop using damping rubber and restraint layer
Make an uproar, but the structure of above-mentioned damping rubber of the prior art and restraint layer is single, and centre is located at without the sounding board in the present invention
The both sides of body, sounding board are beam type, and the elastic part and mass fraction of sounding board are alternately distributed, elastomeric damping layer and resonance
Plate such as is alternately distributed at the structure.Therefore prior art carries for the practical problem for solving to have multi-modes frequency during wheel operation
High multiple important intrinsic frequencies in multi-modes frequency carry out vibration damping and noise reduction, also need further to improve.
The content of the invention
The technical problem to be solved in the present invention is：How caused multi-modes frequency in wheel actual motion is inhaled
Shake, noise reduction.
Pin is with above mentioned problem, technical scheme proposed by the present invention：A kind of dynamic absorber formula wheel noise reduction block, wheel noise reduction
Block includes rigid support and elastomeric damping layer, is provided with mounting hole in rigid support, rigid support include installing plate, sounding board and in
Mesosome, sounding board include elastic part and mass fraction, and elastic part and mass fraction are alternately distributed, elastomeric damping layer and resonance
Plate is alternately distributed.
Further, intermediate is integral type global facility, and intermediate is located at the top of installing plate, and sounding board is located at installation
The both sides of plate, sounding board are beam type structure, are embedded in described formed with cavity, elastomeric damping layer between the sounding board of the same side
Cavity in and/or elastomeric damping layer be distributed in the outer surface of rigid support.
Further, the installing plate of intermediate both sides, sounding board and elastomeric damping layer are symmetrical；Rigid support is by metal
Material is made, and the sounding board of rigid support divides flexible part and mass fraction along its length, and the thickness of elastic part is small
It is less than the width of mass fraction in the thickness of mass fraction and/or the width of elastic part；Elastomeric damping layer is by elastic damping material
Material is made, and elastomeric damping layer is Nian Jie with its vibration plate into an entirety.
Further, sounding board is elastic part close to one end of intermediate, and one end away from intermediate is mass fraction；
Elastomeric damping layer is embedded between sounding board, two layers of elastomeric damping layer, is strip on the outside of the elastomeric damping layer on upper strata, inner side is
N shapes, the elastomeric damping layer of lower floor is strip.
Further, sounding board is elastic part close to one end of intermediate, and one end away from intermediate is mass fraction；
Elastomeric damping layer is embedded between sounding board, two layers of elastomeric damping layer, is strip on the outside of the elastomeric damping layer on upper strata, inner side is
Square, and the square elastomeric damping layer on upper strata is alternately distributed with strip elastomeric damping layer, the elastomeric damping layer of lower floor is
Strip.
Further, sounding board is elastic part close to one end of intermediate, and one end away from intermediate is mass fraction；
Elastomeric damping layer is embedded between sounding board, two layers of elastomeric damping layer, and elastomeric damping layer is F shapes, and the elastic damping of upper and lower layer
Layer is symmetrical.
Further, intermediate is integral type structure, and intermediate is set on a mounting board, and the both ends of installing plate respectively set one
Individual intermediate；And the mounting hole of insertion intermediate and installing plate, two intermediates are provided with the middle body position at installing plate both ends
Between be provided with elastomeric damping layer made of sounding board made of metal and elastic damping material, sounding board replaces with elastomeric damping layer
Distribution.
A kind of noise-reduction method of dynamic absorber formula wheel noise reduction block, rigid support include installing plate, sounding board and intermediate,
Bending resistance stiffness and intensity are strengthened by rigid support；Elastic part and mass fraction are set on along its length in sounding board, and
Elastic part and mass fraction are alternately distributed, and elastomeric damping layer and sounding board are alternately distributed, so that wheel drops
Block make an uproar formed with multiple natural frequency vibration subsystems, so as to improve the effect of vibration and noise reduction of wheel noise reduction block.
Further, rigid support is made of metal, and the thickness of elastic part is set smaller than to the thickness of mass fraction,
Elastic part and mass fraction are alternately distributed, so as to form the structure that the rigidity of sounding board carries out graded；Elastic damping
Layer is made up of elastic damping material, and elastomeric damping layer is embedded between sounding board and/or elastomeric damping layer is distributed in firm branch
The outer surface of frame, so as to form multiple natural frequency vibration subsystems, acted on by the dynamic absorber of elastomeric damping layer, to wheel
Realize more order frequencies, wide band effect of vibration and noise reduction.
Further, by the borehole on the sounding board of strip and regulation sounding board between spacing, make sounding board it
Between form cavity, elastomeric damping layer is embedded in described cavity；By the mass fraction and elastic portion that adjust each layer of sounding board
Point length, width, the length of elastomeric damping layer in thickness, and cavity, width, thickness, and in sounding board, elastic damping
Borehole on layer, to adjust the intrinsic frequency of vibration subsystem, make vibration subsystem formed with multiple different intrinsic frequencies, and will
Vibration subsystem multiple intrinsic frequencies adjust it is close to multi-modes vibration frequency when being run with wheel, so as to strengthen vibration damping
Noise reduction.
It is an advantage of the invention that：
1. the rigid support of the present invention uses integral casting forming by metal material, or integrally machining, or multilayer steel plates
The entirety of a seamless connection is made in welding fabrication after processing, or the mode such as 3D printing shaping.Each sounding board is beam type
Structure, in insertion that elastomeric damping layer is seamless, the cavity being filled between sounding board and/or elastomeric damping layer is seamlessly connected firm
The outer surface of support, one is formed using rigid support made of metal as skeleton, there is enough bending resistance stiffness and intensity；With
Elastomeric damping layer made of elastic damping material is vibration damping critical piece, monoblock type dynamic absorber wheel noise reduction block.So that
Wheel noise reduction block can obtain good absorbing, outside noise reduction, also with the advantages of firm in structure, service life is long.
2. wheel is in the process of running, under the incentive action of external force, violent resonance can be caused, generally extraneous excitation
It is extremely complex, therefore, vibration is multi-modes vibration frequency caused by wheel.The present invention is by by the resonance of rigid support
Plate divides flexible part and mass fraction along its length, and the thickness of elastic part is less than the thickness of mass fraction, and by bullet
In the seamless insertion of property damping layer, the alternatively distributed cavity of thickness being filled between sounding board, multiple natural frequency vibrations are formed
Subsystem, and by vibrate subsystem multiple intrinsic frequencies adjust it is close to multi-modes vibration frequency when being run with wheel,
So as to which effect of vibration and noise reduction be greatly enhanced.
Brief description of the drawings
Fig. 1 is the schematic perspective view of embodiment one；
Fig. 2 is the main view direction schematic diagram of embodiment one；
Fig. 3 is the schematic perspective view of embodiment two；
Fig. 4 is the main view direction schematic diagram of embodiment two；
Fig. 5 is the schematic perspective view of embodiment three；
Fig. 6 is the main view direction schematic diagram of embodiment three；
In figure：1 installing plate, 2 sounding boards, 3 intermediates, 4 elastomeric damping layers, 5 mounting holes.
Embodiment
The description of a step is done to the present invention with reference to embodiment and accompanying drawing：
Embodiment one
Multiple wheel noise reduction blocks line up a circle along the circumferencial direction on the inside of wheel, and on the inside of wheel.Such as Fig. 1 and Fig. 2 institutes
Show, wheel noise reduction block includes rigid support and elastomeric damping layer 4, and rigid support includes installing plate 1, sounding board 2 and intermediate 3；
Elastomeric damping layer 4 divides for elastic part and mass fraction.Wherein：Installing plate 1 only has a Rotating fields, and left and right end is respectively provided with semicircle
Mounting hole 5, two semicircle mounting holes 5 on the installing plate 1 of adjacent two wheel noise reduction blocks can be combined into a circular peace
Hole 5 is filled, the middle part of intermediate 3 is provided with the circular mounting hole 5 of an insertion intermediate 3 and installing plate 1.Sounding board 2 can be single
Rotating fields can also be sandwich construction, and intermediate 3 is seamlessly connected into an entirety with installing plate 1 and sounding board 2.
Installing plate 1, sounding board 2 and intermediate 3 are all formed from metal, and collectively constitute rigid support, it is desirable to have enough
Bending resistance stiffness and intensity.Rigid support first passes around the pre-treatments such as sandblasting, phosphatization and gluing, and it is preheated to be put into vulcanizer
In mould, and damping rubber sizing material is molded into mould in the cavity of metal sandwich structure, sets suitable curing temperature, pressure
Power and time, elastomeric damping layer 4 is formed by the high temperature vulcanized molding mode of rubber-metal, and one is bonded to rigid support vulcanization
Body, form wheel noise reduction block.
In order to ensure dynamic wheel balancing requirement and effect of vibration and noise reduction, each wheel generally requires the multiple wheel noise reductions of installation
Block, number can be that even number can also be odd number, but require to be arranged on same circumference and be uniformly distributed.During wheel rolling,
Cause the violent resonance of sounding board 2, wheel noise reduction block absorbs unsteadiness of wheels energy and the damping by being centered around around sounding board 2
Rubber is converted into thermal energy consumption and dissipated；First layer elastomeric damping layer 4 and first layer sounding board 2 simultaneously adjacent with installing plate 1 combines
Constrained damping structure is formd, thus vibration and noise reducing can also be realized to wheel using damping-constraining effect.Because wheel presence is more
Rank modal frequency and multiple need the vibration noise frequency that emphasis is controlled, it is therefore desirable to by the sounding board 2 of wheel noise reduction block
Sandwich construction or multiple oscillating mass body structures are arranged to, by carrying out gradient setting and being alternately distributed to set to its quality and rigidity
Put, in conjunction with the elasticity and damping action of damping rubber layer, wheel noise reduction block is realized multiple different natural frequencies tickers
System, and make its dominant frequency that respectively worked with wheel as far as possible close, so as to realize good effect of vibration and noise reduction.
The concrete structure of the present embodiment is：Intermediate 3 is located at the top of installing plate 1, and sounding board 2 is located at the two of installing plate 1
Side, sounding board 2 are beam type structure, and installing plate 1, sounding board 2 and intermediate 3 are seamlessly connected into an entirety.The same side
It is embedded between sounding board 2 formed with cavity, elastomeric damping layer 4 in described cavity.Installing plate 1, the sounding board of the both sides of intermediate 3
2 and elastomeric damping layer 4 it is symmetrical, the sounding board 2 of rigid support divides flexible part and mass fraction, bullet along its length
Property part thickness be less than the thickness of mass fraction, elastic part is alternately distributed with mass fraction.In the cavity of sounding board 2
Elastomeric damping layer 4 is two layers, and the outside of elastomeric damping layer 4 on upper strata is strip, and inner side is n shapes, and the elastomeric damping layer 4 of lower floor is
Strip.
In the present embodiment：Each sounding board 2 is beam type structure, is divided into elastic part and Quality Mgmt Dept along its length
Point, it is in the outer part mass fraction, elastic part is alternately distributed with mass fraction wherein being elastic part close to intermediate 3.Due to
Elastic part thickness of slab is significantly less than mass fraction thickness of slab, therefore during the vibration of wheel noise reduction block, the elastic part presentation of sounding board 2 is low
Rigidity, high resiliency feature, mass fraction is presented high rigidity, concentrates big quality characteristic, in conjunction with two sections of length, width, the thickness
Size setting is spent, and combines the modulus of damping rubber and damps and set, rigidity and quality needed for realization, and it is intrinsic needed for realization
The vibration subsystem of frequency.And the sounding board 2 of different layers, different parameter settings can be passed through：Such as steel plate length, thickness, width
Degree, quality, rubber layer thickness etc., and mutual interlaced arrangement, the vibration subsystem of different natural frequencies is realized, so that drop
Block of making an uproar can possess multiple natural frequency vibration subsystems, by there is the dynamic absorber of damping to act on, finally wheel be realized multistage
Frequency, wide band effect of vibration and noise reduction.
Embodiment two
As shown in Figure 3 and Figure 4, the present embodiment and the difference of embodiment one are：The elastic part of sounding board 2 and Quality Mgmt Dept
Point shape be different, elastomeric damping layer 4 is embedded in the cavity between sounding board 2, and the number of plies and shape of sounding board 2 are by elasticity
Damping layer 4 is two layers, and the outside of elastomeric damping layer 4 on upper strata is strip, and inner side is square, and the square elasticity on upper strata hinders
Buddhist nun's layer 4 is alternately distributed with strip elastomeric damping layer 4, and the elastomeric damping layer 4 of lower floor is strip.
Embodiment three
As shown in Figure 5 and Figure 6, the present embodiment and the difference of embodiment one and embodiment two are：The elastic portion of sounding board 2
Divide and the shape of mass fraction is different, along horizontal width direction（That is wheel axial direction）It is arranged side by side with 2 layers or multilayer resonance
Plate, and gap is left between the sounding board being arranged side by side, sounding board quantity is thereby increased, and reduce sounding board stretch section axial direction
Rigidity simultaneously improves the effect of vibration and noise reduction to wheel axial direction；Elastomeric damping layer 4 is embedded in the cavity between sounding board 2, sounding board 2
The number of plies and shape by elastomeric damping layer 4 be two layers, elastomeric damping layer 4 is F shapes, and the elastomeric damping layer 4 of upper and lower layer symmetrically divides
Cloth.
Example IV
It is not drawn into figure, the present embodiment and the difference of above three embodiments are：Sounding board 2 close to intermediate 3 one
Hold as mass fraction, the outside of sounding board 2 is elastic part, and elastic part and mass fraction are alternately distributed；It is embedded between sounding board 2
Elastomeric damping layer 4, and the outer surface of the sounding board 2 of the superiors and/or the outer surface of installing plate 1 are also bonded with elastomeric damping layer 4,
I.e.：Elastomeric damping layer 4 in the present embodiment is except in the cavity between sounding board 2, being also wrapped in the outside of rigid support.
Embodiment five
It is not drawn into figure, the present embodiment and the difference of preceding four embodiments are：The both ends of installing plate 1 are respectively set in one
Mesosome 3, and the mounting hole 5 for penetrating intermediate 3 and installing plate 1 is provided with the position of intermediate 3 at the both ends of installing plate 1.That is：
The mounting hole 5 for respectively opening an insertion is only opened on one wheel noise reduction block at both ends, is no longer opened in the center section of wheel noise reduction block
Mounting hole 5.
Elastomeric damping layer 4 made of sounding board 2 made of metal and elastic damping material is provided between two intermediates 3,
Cavity is still provided between two pieces of adjacent sounding boards 2, elastomeric damping layer 4 is still filled in described cavity, makes sounding board 2 and bullet
Property damping layer 4 is alternately distributed.Sounding board 2 can be arc plate consistent everywhere in thickness and width or with reality
Apply in a 1-4 equally, using flexible part and mass fraction is divided along its length, the thickness of elastic part is less than Quality Mgmt Dept
The thickness and/or the width of elastic part that divide are less than the structure of the width of mass fraction.Elastomeric damping layer 4 can be to fill up resonating
Cavity or compartment between plate 2 are filled in described cavity.
It will be apparent that on the premise of principle of the present invention is not departed from, some improvement or modification made are regarded as this
The protection domain of invention.
Claims (10)
1. a kind of dynamic absorber formula wheel noise reduction block, wheel noise reduction block includes rigid support and elastomeric damping layer（4）, rigid support
On be provided with mounting hole（5）, it is characterised in that rigid support includes installing plate（1）, sounding board（2）And intermediate（3）, sounding board
（2）Including elastic part and mass fraction, elastic part and mass fraction are alternately distributed, elastomeric damping layer（4）With sounding board（2）
It is alternately distributed.
A kind of 2. dynamic absorber formula wheel noise reduction block according to claim 1, it is characterised in that intermediate（3）It is integrated
Formula structure, intermediate（3）It is located at installing plate（1）On, sounding board（2）It is located at intermediate（3）Both sides, sounding board（2）For cantilever
Girder structure, the sounding board of the same side（2）Between formed with cavity, elastomeric damping layer（4）In described cavity and/or hinder
Buddhist nun's layer（4）It is distributed in the outer surface of rigid support.
3. a kind of dynamic absorber formula wheel noise reduction block according to claim 2, it is characterised in that rigid support is by metal material
Material is made, the sounding board of rigid support（2）Flexible part and mass fraction are divided along its length, and the thickness of elastic part is small
It is less than the width of mass fraction in the thickness of mass fraction and/or the width of elastic part；Elastomeric damping layer（4）By elastic damping
Material is made, elastomeric damping layer（4）With sounding board（2）It is bonded into an entirety.
4. a kind of dynamic absorber formula wheel noise reduction block according to any one in claim 1,2,3, it is characterised in that altogether
Vibration plate（2）Close to intermediate（3）One end be elastic part, away from intermediate（3）One end be mass fraction；Elastomeric damping layer
（4）Embedded in sounding board（2）Between, elastomeric damping layer（4）For two layers, the elastomeric damping layer on upper strata（4）Outside is strip, inner side
For n shapes, the elastomeric damping layer of lower floor（4）For strip.
5. a kind of dynamic absorber formula wheel noise reduction block according to any one in claim 1,2,3, it is characterised in that altogether
Vibration plate（2）Close to intermediate（3）One end be elastic part, away from intermediate（3）One end be mass fraction；Elastomeric damping layer
（4）Embedded in sounding board（2）Between, elastomeric damping layer（4）For two layers, the elastomeric damping layer on upper strata（4）Outside is strip, inner side
For square, and the square elastomeric damping layer on upper strata（4）With strip elastomeric damping layer（4）It is alternately distributed, the elasticity of lower floor
Damping layer（4）For strip.
6. a kind of dynamic absorber formula wheel noise reduction block according to any one in claim 1,2,3, it is characterised in that altogether
Vibration plate（2）Close to intermediate（3）One end be elastic part, away from intermediate（3）One end be mass fraction；Elastomeric damping layer
（4）Embedded in sounding board（2）Between, elastomeric damping layer（4）For two layers, elastomeric damping layer（4）Elasticity for F shapes, and upper and lower layer hinders
Buddhist nun's layer（4）It is symmetrical.
A kind of 7. dynamic absorber formula wheel noise reduction block according to claim 1, it is characterised in that intermediate（3）It is integrated
Formula structure, intermediate（3）It is located at installing plate（1）On, and installing plate（1）Both ends respectively set an intermediate（3）；And installing
Plate（1）The intermediate at both ends（3）Position is provided with insertion intermediate（3）And installing plate（1）Mounting hole（5）, two intermediates it
Between be provided with sounding board made of metal（2）With elastic damping material made of elastomeric damping layer（4）, sounding board（2）Hindered with elasticity
Buddhist nun's layer（4）It is alternately distributed.
8. a kind of noise-reduction method of dynamic absorber formula wheel noise reduction block, it is characterised in that rigid support includes installing plate（1）, altogether
Vibration plate（2）And intermediate（3）；In sounding board（2）Elastic part and mass fraction are set on along its length, and make elastic part and
Mass fraction is alternately distributed, and by elastomeric damping layer（4）With sounding board（2）It is alternately distributed, so that wheel noise reduction block shape
Into having based on dynamic absorber, the characteristic supplemented by damping-constraining, to reach effect of vibration and noise reduction.
A kind of 9. noise-reduction method of dynamic absorber formula wheel noise reduction block according to claim 8, it is characterised in that firm branch
Frame is made of metal, and the thickness of elastic part is set smaller than to the thickness of mass fraction, and elastic part and mass fraction are handed over
For distribution, so as to form sounding board（2）Rigidity and quality carry out graded structure；Elastomeric damping layer（4）Hindered by elasticity
Damping material is made, by elastomeric damping layer（4）Embedded in sounding board（2）Between, make elastomeric damping layer（4）With sounding board（2）It is bonded into
One entirety, so as to form multiple natural frequency vibration subsystems, pass through elastomeric damping layer（4）Dynamic absorber effect, to car
Wheel realizes more order frequencies, wide band effect of vibration and noise reduction.
10. the noise-reduction method of a kind of dynamic absorber formula wheel noise reduction block according to claim 8 or claim 9, it is characterised in that logical
Cross the sounding board in strip（2）Upper borehole and regulation sounding board（2）Between spacing, make sounding board（2）Between form cavity,
Elastomeric damping layer（4）In described cavity；By adjusting each layer of sounding board（2）Mass fraction and elastic part length
Elastomeric damping layer in degree, width, thickness, and cavity（4）Length, width, thickness, and in sounding board, elastomeric damping layer
Upper borehole, to adjust the intrinsic frequency of vibration subsystem, make vibration subsystem formed with multiple different intrinsic frequencies, and will shake
Multiple intrinsic frequencies of subsystem adjust it is close to multi-modes vibration frequency when being run with wheel, so as to strengthen vibration damping drop
Make an uproar effect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981730.8A CN107696789B (en) | 2017-10-20 | 2017-10-20 | Dynamic vibration absorbing type wheel noise reduction block and noise reduction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981730.8A CN107696789B (en) | 2017-10-20 | 2017-10-20 | Dynamic vibration absorbing type wheel noise reduction block and noise reduction method |
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| CN107696789A true CN107696789A (en) | 2018-02-16 |
| CN107696789B CN107696789B (en) | 2023-08-25 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550514A (en) * | 2020-04-07 | 2020-08-18 | 株洲时代新材料科技股份有限公司 | Multi-frequency dynamic vibration absorption method and multi-frequency dynamic vibration absorber |
| CN111654993A (en) * | 2020-05-22 | 2020-09-11 | 中国航空工业集团公司西安航空计算技术研究所 | Module equal-mass variable-rigidity method and module equal-mass variable-rigidity module |
| CN111761987A (en) * | 2020-07-07 | 2020-10-13 | 株洲时代新材料科技股份有限公司 | Wheel noise reduction damper and damping material filling method |
| CN112413034A (en) * | 2019-08-23 | 2021-02-26 | 上海汽车集团股份有限公司 | Vehicle and vibration damping assembly |
| CN112428745A (en) * | 2020-12-01 | 2021-03-02 | 江苏电子信息职业学院 | Amortization wheel hub convenient to adjust dynamic balance |
| CN114550683A (en) * | 2020-11-11 | 2022-05-27 | 中信戴卡股份有限公司 | Sound absorber unit and vehicle wheel with sound absorber |
| CN116219805A (en) * | 2023-01-10 | 2023-06-06 | 株洲时代新材料科技股份有限公司 | Dynamic vibration absorbing damper |
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| CN112413034A (en) * | 2019-08-23 | 2021-02-26 | 上海汽车集团股份有限公司 | Vehicle and vibration damping assembly |
| CN112413034B (en) * | 2019-08-23 | 2022-06-14 | 上海汽车集团股份有限公司 | Vehicle and vibration damping assembly |
| CN111550514A (en) * | 2020-04-07 | 2020-08-18 | 株洲时代新材料科技股份有限公司 | Multi-frequency dynamic vibration absorption method and multi-frequency dynamic vibration absorber |
| CN111550514B (en) * | 2020-04-07 | 2022-03-15 | 株洲时代新材料科技股份有限公司 | Multi-frequency dynamic vibration absorption method and multi-frequency dynamic vibration absorber |
| CN111654993A (en) * | 2020-05-22 | 2020-09-11 | 中国航空工业集团公司西安航空计算技术研究所 | Module equal-mass variable-rigidity method and module equal-mass variable-rigidity module |
| CN111654993B (en) * | 2020-05-22 | 2021-11-05 | 中国航空工业集团公司西安航空计算技术研究所 | Module equal-mass variable-rigidity method and module equal-mass variable-rigidity module |
| CN111761987A (en) * | 2020-07-07 | 2020-10-13 | 株洲时代新材料科技股份有限公司 | Wheel noise reduction damper and damping material filling method |
| CN111761987B (en) * | 2020-07-07 | 2022-09-27 | 株洲时代新材料科技股份有限公司 | Wheel noise reduction damper and damping material filling method |
| CN114550683A (en) * | 2020-11-11 | 2022-05-27 | 中信戴卡股份有限公司 | Sound absorber unit and vehicle wheel with sound absorber |
| CN114550683B (en) * | 2020-11-11 | 2024-05-14 | 中信戴卡股份有限公司 | Sound absorber unit and wheel with sound absorber |
| CN112428745A (en) * | 2020-12-01 | 2021-03-02 | 江苏电子信息职业学院 | Amortization wheel hub convenient to adjust dynamic balance |
| CN116219805A (en) * | 2023-01-10 | 2023-06-06 | 株洲时代新材料科技股份有限公司 | Dynamic vibration absorbing damper |
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