CN110424196A - It is a kind of for inhibiting the device of rail vibration noise - Google Patents
It is a kind of for inhibiting the device of rail vibration noise Download PDFInfo
- Publication number
- CN110424196A CN110424196A CN201910287776.9A CN201910287776A CN110424196A CN 110424196 A CN110424196 A CN 110424196A CN 201910287776 A CN201910287776 A CN 201910287776A CN 110424196 A CN110424196 A CN 110424196A
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- China
- Prior art keywords
- rail
- shot
- steel cavity
- vibration
- steel
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a kind of for inhibiting the device of rail vibration noise, including rail, steel cavity, elastomeric layer, viscous-elastic material layer, shot and outer casing, the two sides of the rail are equipped with steel cavity, wherein, elastomeric layer is provided between the steel cavity and rail and elastomeric layer is connected with rail two sides web of the rail surface, while steel cavity is connected with elastomeric layer.This is used to inhibit the shot for taking different radii in the device of rail vibration noise in steel cavity to form particle damping element, and the strong nonlinearity behavior of bulk solid particle changes its inherent damping characteristic with stimulation level；This can effectively inhibit the level of response at rail formant, absorbing frequency band can be widened again, and its effectiveness in vibration suppression is made to be no longer influenced by the negative effect damped greatly, steel cavity inner wall adheres to visco-elastic damping material, rail vibration drives the vibration of shot particle, collides between particle with friction behavior and dissipation part energy and vibration damping.
Description
Technical field
It is specially a kind of for inhibiting the device of rail vibration noise the present invention relates to track cushion technique field.
Background technique
The effect of vibration and noise reduction of steel rail vibration absorber and its own natural mode of vibration are closely related, principal vibration control range
Frequency near natural mode of vibration, therefore steel rail vibration absorber intrinsic frequency is abundanter and corresponding damping ratios are bigger, subtracts
Noise reduction effect of shaking is better, existing country's rail traffic steel rail vibration absorber mostly use elastic material and metal solid material form or
Connection foamed damping part is pasted in web of the rail two sides, the existing damper using elastic material composition metal solid material is subtracting
Frequency near vibration device intrinsic frequency can inhibit the vibration of rail, but can introduce new resonance peak frequency again；By elastic material
It is stringent to damping size requirements although material can inhibit the new formant introduced when changing viscous damping material into, it damps too small
The formant that these cannot be inhibited new, too big then metal solid material are no longer moved with respect to rail, do not play absorbing.Therefore
It is extremely inconvenient in engineering construction, additionally due to rail is exposed in external environment to be influenced by axially temperature stress, vibration noise
Dominant frequency can change；The physical property of damper elastomeric material or viscous damping material can also be changed by temperature change, therefore, should
Class damper damping noise reduction effect is unobvious and unstable, in addition, using the damper of foamed damping part, one side rail sound
Radiating surface includes rail head, the web of the rail and rail bottom, only pastes connection foamed damping part in web of the rail two sides, noise reduction is limited；Another party
Face can not increase rail extensional vibration attenuation rate since its quality is small, thus its synthesis effect of vibration and noise reduction is extremely limited, together
When under vertical, horizontal and vertical three-dimensional load comprehensive function, backplate used by the damper be difficult to keep for a long time backplate,
Foamed damping part and Rail Surface fit closely, once fitting failure, the water suction deformation of foamed damping part, noise reduction effect will be into
One step reduces, both inhibit the device of rail vibration noise, therefore there is an urgent need to can improve the skill of vibration isolator structure on the market
Art, to improve this equipment.
Summary of the invention
The purpose of the present invention is to provide a kind of for inhibiting the device of rail vibration noise, to solve above-mentioned background skill
Itd is proposed in art now on the market the problem of.
To achieve the above object, the invention provides the following technical scheme: it is a kind of for inhibiting the dress of rail vibration noise
It sets, including rail, steel cavity, elastomeric layer, viscous-elastic material layer, shot and outer casing, the two sides peace of the rail
Equipped with steel cavity, wherein
Elastomeric layer and elastomeric layer and the rail two sides web of the rail are provided between the steel cavity and rail
Surface is connected, while steel cavity is connected with elastomeric layer, and the inner surface of the steel cavity is pasted with viscous-elastic material
Layer, the shot are placed on the inside of steel cavity, and the shot is coated with outer casing.
Further, there are two the steel cavity settings, and vertical central axes pair of 2 steel cavitys about rail
Claim placement.
Further, the steel cavity and shot collectively constitute steel rail vibration absorber.
Further, the viscous-elastic material layer is viscoelasticity damping material.
Further, the inside of the shot is arranged successively placement and steel cavity, and the size of shot is not identical.
Compared with prior art, the beneficial effects of the present invention are: this is used to inhibit the device of rail vibration noise be mainly
It is designed with damping noise reduction: the shot of different radii being taken to form particle damping element in steel cavity, bulk solid particle
Strong nonlinearity behavior changes its inherent damping characteristic with stimulation level；This can effectively inhibit the sound at rail formant
Level is answered, and absorbing frequency band can be widened, and its effectiveness in vibration suppression is made to be no longer influenced by the negative effect damped greatly, steel chamber
Internal wall adheres to visco-elastic damping material, and rail vibration drives the vibration of shot particle, collides between particle and friction behavior
And dissipation part energy and vibration damping, meanwhile, when particle and cavity inner wall viscous-elastic material layer are collided or rubbed, inner wall sticks bullet
Property material layer generate plastic deformation even fracture refinement, thus further permanently dissipate another part vibrational energy and
Vibration damping, when having wrapping layer for shot, in vibration processes, the shock between shot is so that wrapping layer generates plastic deformation even
Fracture refinement, can also permanently dissipate vibrational energy, this device is longitudinally interrupted along rail or continuously pastes or use fixture
It is fixed on the web of the rail of rail two sides, by reducing the origin admittance of rail and increasing rail extensional vibration attenuation rate, plays dual
Inhibit the effect of rail vibration and noise, while steel cavity is closely attached to rail two sides in this way being capable of good pair of energy
It is fixed.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is Noise Reduction Effect Measurement of Timing line chart of the present invention.
In figure: 1, rail, 2, steel cavity, 3, elastomeric layer, 4, viscous-elastic material layer, 5, shot, 6, outer package
Layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: it is a kind of for inhibiting the device of rail vibration noise, it wraps
Include rail 1, steel cavity 2, elastomeric layer 3, viscous-elastic material layer 4, shot 5 and outer casing 6, the two sides of the rail 1
Steel cavity 2 is installed, wherein
Elastomeric layer 3 and elastomeric layer 3 and 1 two sides of rail are provided between the steel cavity 2 and rail 1
Web of the rail surface is connected, while steel cavity 2 is connected with elastomeric layer 3, and the inner surface of the steel cavity 2 is pasted with glutinous
Elastomeric layer 4, the shot 5 are placed on the inside of steel cavity 2, and the shot 5 is coated with outer casing 6.
Preferably, there are two the settings of steel cavity 2, and vertical central axes pair of 2 steel cavitys 2 about rail 1
Claim placement.
Preferably, the steel cavity 2 collectively constitutes steel rail vibration absorber with shot 5.
Preferably, the viscous-elastic material layer 4 is viscoelasticity damping material.
Preferably, the inside of the shot 5 is arranged successively placement and steel cavity 2, and the size of shot 5 is not identical.
Steel cavity 2 is fixed on the two sides of rail 1, in train vibration influence when on rail 1, steel by working principle, when use
Wideband vibration occurs when rail 1 is by vertical, horizontal and vertical load, the shot 5 in steel cavity 2 vibrates, 5 particle of shot it
Between collision, friction energy-dissipating and shot and viscous-elastic material layer 4 energy exchange caused by energy dissipation so that rail 1
Vibration reduce, be finally reached the purpose for reducing rail acoustic radiation, 5 particle of shot and cavity inner wall viscous-elastic material layer 4 collide
Or when friction, inner wall viscous-elastic material layer 4 generates plastic deformation even fracture refinement, to further permanently dissipate
Another part vibrational energy and vibration damping.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of for inhibiting the device of rail vibration noise, including it is rail (1), steel cavity (2), elastomeric layer (3), glutinous
Elastomeric layer (4), shot (5) and outer casing (6), it is characterised in that: the two sides of the rail (1) are equipped with steel cavity
(2), wherein
Elastomeric layer (3) is provided between the steel cavity (2) and rail (1) and elastomeric layer (3) and rail
(1) web of the rail surface in two sides is connected, while steel cavity (2) is connected with elastomeric layer (3), the inside of the steel cavity (2)
Surface mount has viscous-elastic material layer (4), and the shot (5) is placed on the inside of steel cavity (2), the table of the shot (5)
Bread is wrapped with outer casing (6).
2. according to claim 1 a kind of for inhibiting the device of rail vibration noise, it is characterised in that: the steel chamber
There are two body (2) settings, and vertical central axes symmetrical placement of 2 steel cavitys (2) about rail (1).
3. according to claim 1 a kind of for inhibiting the device of rail vibration noise, it is characterised in that: the steel chamber
Body (2) and shot (5) collectively constitute steel rail vibration absorber.
4. according to claim 1 a kind of for inhibiting the device of rail vibration noise, it is characterised in that: the viscoelasticity
Material layer (4) is viscoelasticity damping material.
5. according to claim 1 a kind of for inhibiting the device of rail vibration noise, it is characterised in that: the shot
(5) inside of the placement and steel cavity (2) that are arranged successively, and the size of shot (5) is not identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287776.9A CN110424196A (en) | 2019-04-11 | 2019-04-11 | It is a kind of for inhibiting the device of rail vibration noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287776.9A CN110424196A (en) | 2019-04-11 | 2019-04-11 | It is a kind of for inhibiting the device of rail vibration noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110424196A true CN110424196A (en) | 2019-11-08 |
Family
ID=68408379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910287776.9A Pending CN110424196A (en) | 2019-04-11 | 2019-04-11 | It is a kind of for inhibiting the device of rail vibration noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110424196A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174787A (en) * | 2021-04-28 | 2021-07-27 | 香港理工大学深圳研究院 | Rail transit vibration and noise reduction method based on modular steel rail particle damper |
| CN114892455A (en) * | 2022-04-29 | 2022-08-12 | 厦门振为科技有限公司 | Construction and installation method of high-energy-consumption vibration-damping steel rail and steel rail applying same |
| CN117431790A (en) * | 2023-12-20 | 2024-01-23 | 西南石油大学 | Self-adaptive steel rail vibration absorber capable of efficiently recycling broadband vibration energy |
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| CN105908581A (en) * | 2016-04-21 | 2016-08-31 | 同济大学 | Composite particle damper used for reducing steel rail vibration noise |
| KR101668790B1 (en) * | 2015-08-19 | 2016-10-25 | 한양대학교 산학협력단 | Impact damper of moving rail for vibration reduction |
| KR101860397B1 (en) * | 2017-08-11 | 2018-05-24 | 한국철도기술연구원 | Rail damper for reducing railway noise and vibration |
| CN109056427A (en) * | 2018-09-26 | 2018-12-21 | 同济大学 | A kind of rail fluid damping particle damper |
| CN210134297U (en) * | 2019-04-11 | 2020-03-10 | 陕西九域通创轨道系统技术有限责任公司 | Device for inhibiting vibration noise of steel rail |
-
2019
- 2019-04-11 CN CN201910287776.9A patent/CN110424196A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101668790B1 (en) * | 2015-08-19 | 2016-10-25 | 한양대학교 산학협력단 | Impact damper of moving rail for vibration reduction |
| CN105908581A (en) * | 2016-04-21 | 2016-08-31 | 同济大学 | Composite particle damper used for reducing steel rail vibration noise |
| KR101860397B1 (en) * | 2017-08-11 | 2018-05-24 | 한국철도기술연구원 | Rail damper for reducing railway noise and vibration |
| CN109056427A (en) * | 2018-09-26 | 2018-12-21 | 同济大学 | A kind of rail fluid damping particle damper |
| CN210134297U (en) * | 2019-04-11 | 2020-03-10 | 陕西九域通创轨道系统技术有限责任公司 | Device for inhibiting vibration noise of steel rail |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174787A (en) * | 2021-04-28 | 2021-07-27 | 香港理工大学深圳研究院 | Rail transit vibration and noise reduction method based on modular steel rail particle damper |
| CN114892455A (en) * | 2022-04-29 | 2022-08-12 | 厦门振为科技有限公司 | Construction and installation method of high-energy-consumption vibration-damping steel rail and steel rail applying same |
| CN117431790A (en) * | 2023-12-20 | 2024-01-23 | 西南石油大学 | Self-adaptive steel rail vibration absorber capable of efficiently recycling broadband vibration energy |
| CN117431790B (en) * | 2023-12-20 | 2024-03-26 | 西南石油大学 | Self-adaptive steel rail vibration absorber capable of efficiently recycling broadband vibration energy |
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