CN101413230A - Steel rail vibration damping noise reduction method for self-absorption composite magnetic damping plate - Google Patents
Steel rail vibration damping noise reduction method for self-absorption composite magnetic damping plate Download PDFInfo
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- CN101413230A CN101413230A CNA2008102305314A CN200810230531A CN101413230A CN 101413230 A CN101413230 A CN 101413230A CN A2008102305314 A CNA2008102305314 A CN A2008102305314A CN 200810230531 A CN200810230531 A CN 200810230531A CN 101413230 A CN101413230 A CN 101413230A
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Abstract
The invention discloses a method for vibration absorption and noise reduction of steel rails by self-attraction type combined magnetic damping sheets, which comprises the following steps: a rail web and a rail foot of a steel rail (1) are symmetrically provided with the combined magnetic damping sheets (2); the outer layers of the combined magnetic damping sheets are symmetrically provided with constraint metal plates (3) which are fixed at both sides of the steel rail by a U-shaped magazine clip (4); the combined magnetic damping sheets have the magnetism and are attracted on the side surfaces of the steel rail; related interfaces inside the combined magnetic damping sheets and between the combined magnetic damping sheets and the steel rail as well as between the combined magnetic damping sheets and the constraint metal plates can cause vibration friction and slide relatively during the vibration of the steel rail; the mechanical energy of the vibration is converted into thermal energy to be dissipated to eliminate the vibration energy or the vibration amplitude of the steel rail; and the combined magnetic damping sheets and the steel rail are not adhered, so the viscoelastic damping mechanism is lost, which ensures that the range of the vibration frequency is wider, the temperature change has smaller influence, and good vibration absorption and noise reduction effects exist in a wider range of frequency domain and temperature domain. The method has convenient installation and replacement, and obvious vibration absorption and noise reduction effects, and can be widely used for vibration absorption and noise reduction engineering of track traffic.
Description
Technical field
The invention belongs to track traffic noise reduction technology field, be applied to especially that ew lines such as city underground, light rail, inter-city passenger rail and high-speed railway traffic are laid or a kind of self-absorption composite magnetic damping plate of old line transformation is used for the method for steel rail vibration damping noise reduction.
Background technology
In field of track traffic, rail is adopted with free damping or damping-constraining processing,, be a kind of method of tackling rail vibration and noise both at the bonding damping sheet in rail surface.
Present domestic track engineering does not still have the example of large-scale application rail damping sheet, mainly is because present rail damping sheet technology exists following obviously not enough:
No matter free style damping or damping-constraining for reaching effect of vibration and noise reduction, all must be guaranteed closely bonding between damping sheet and the rail bonding surface, and usual way is to adopt bonding adhesive bonding.This makes rail damping sheet production technology or mounting process very complicated, and changes, keeps in repair extremely inconvenience, can't large-scale practical application.And adhesive strength is lower, and sticks the difficult detection control of quality, under the long-term dynamic load effect of train, and the easy a part or whole part of damping sheet ground and the disengaging of rail body, thus lose effect of vibration and noise reduction gradually.
In addition, damping material has selectivity to serviceability temperature and vibration damping frequency, have only than vibration in the narrow temperature scope and only better assimilation effect is arranged the CF section, and subway line vibration bandwidth, especially the wire over ground difference variation is big in some highway section, is not suitable for adopting common damping sheet to handle.
Summary of the invention
For addressing the above problem, the present invention proposes the method that a kind of self-absorption composite magnetic damping plate is used for steel rail vibration damping noise reduction, use the self-absorption composite magnetic damping plate of this method not need with rail bonding, install and change conveniently, rely on its self-priming mode to make interface friction loss dissipation energy, effect of vibration and noise reduction is obvious, can be widely used in track traffic vibration and noise reducing engineering.
For achieving the above object, the present invention adopts following technical scheme:
The method that described self-absorption composite magnetic damping plate is used for steel rail vibration damping noise reduction is to be symmetrical arranged composite magnetic damping plate at the rail web of the rail and foot place, skin at composite magnetic damping plate is symmetrical arranged the constraint metal sheet, is fixed in the both sides of rail by a U type cartridge clip; Self has magnetic composite magnetic damping plate, do not need the bonding rail side that promptly can be adsorbed on, when vibration takes place in rail, between the composite magnetic damping plate inside or and rail and the related interfaces of constraint between the metal sheet will cause the vibration friction, because the irregular and excited target point of the shape of rail own is positioned at the end, the amplitude difference of rail body each several part was bigger when vibration took place, between the composite magnetic damping plate inside that causes adsorbing on the rail or with rail and constraint metal sheet between produce local relative repeatedly slip, under its related interfaces frictional resistance effect, vibration mechanical energy will be converted into thermal dissipation and fall, thereby subdue the rail vibration energy, reduce the rail vibration amplitude; Simultaneously, thereby, make that vibration frequency range is wideer, influence of temperature change is littler, in broad frequency domain and warm territory scope, all have the favorable damping noise reduction because composite magnetic damping plate and rail do not rely on the bonding viscoelastic damping mechanism that loses.
Described self-absorption composite magnetic damping plate is used for the method for steel rail vibration damping noise reduction, and its composite magnetic damping plate can be bilayer or multilayer, makes by magnetically damped rubber or magnetically damped plastics macromolecule flexible material for every layer.
Because adopt aforesaid technical scheme, the present invention has following superiority:
1, composite magnetic damping plate of the present invention has used the macromolecule flexible material that self has magnetic, do not need bonding way such as adhesive or sulfuration, utilize its magnetic can directly be adsorbed on the inoperative side of rail, adopt constraint metal sheet and U type cartridge clip auxiliary fixing simultaneously, make install, change, maintenance is simple and easy to do;
2, the present invention mainly be utilize between the composite magnetic damping plate inside or and rail and constraint metal sheet between or magnetic damping plate will cause that with related interfaces between rail, restraining plate vibration rubs, rail vibration mechanical energy is converted into thermal dissipation to be fallen, thereby subdue vibrational energy, reduce the rail vibration amplitude;
3, because thereby composite magnetic damping plate and rail do not rely on the bonding viscoelastic damping mechanism that loses, make that vibration frequency range is wideer, influence of temperature change is littler, self-absorption composite magnetic damping plate compliance is stronger, all has the favorable damping noise reduction in broad frequency domain and warm territory scope;
4, method of the present invention is simple, installs and changes conveniently;
5, self-absorption composite magnetic damping plate relies on its related interfaces frictional dissipation dissipation energy, effect of vibration and noise reduction is subjected to ectocine such as variations in temperature, vibration frequency etc. little, effectively overcome the weakness of common adhered rail damping sheet, can be widely used in track traffic vibration and noise reducing engineering.
Description of drawings
Fig. 1 is a method schematic diagram of the present invention.
Among Fig. 1: 1-rail; 2-composite magnetic damping plate; 2.1-internal layer magnetic damping plate; 2.2-magnetic damping plate; 2.3-outer magnetic damping plate; 3-metal restraining plate; 4-U type cartridge clip.
The specific embodiment
Fig. 1 constitutes composite magnetic damping plate 2 jointly by internal layer magnetic damping plate 2.1, magnetic damping plate 2.2, outer magnetic damping plate 2.3, and its material all uses magnetically damped macromolecule flexible material.Be the clear difference that shows each layer damping sheet section, section line given in Fig. 1 is also different, but this does not have influence on the uniformity of its material, and different is that the employed area of each layer damping sheet can be different.
Can know by Fig. 1 for this reason and find out: the method that self-absorption composite magnetic damping plate of the present invention is used for steel rail vibration damping noise reduction is to be symmetrical arranged composite magnetic damping plate 2 at rail 1 web of the rail and foot place, skin at composite magnetic damping plate 2 is symmetrical arranged constraint metal sheet 3, is fixed in the both sides of rail 1 by a U type cartridge clip 4; Composite magnetic damping plate 2 self has magnetic, do not need bonding rail 1 side that promptly can be adsorbed on, when vibration takes place in rail 1, between composite magnetic damping plate 2 inside or and rail 1 and the related interfaces of constraint between the metal sheet 3 will cause the vibration friction, because the irregular and excited target point of rail 1 shape own is positioned at the end, the amplitude difference of rail body each several part was bigger when vibration took place, cause on the rail 1 between composite magnetic damping plate 2 inside of absorption or with rail 1 and constraint metal sheet 3 between produce local relative repeatedly slip, under its related interfaces frictional resistance effect, vibration mechanical energy will be converted into thermal dissipation and fall, thereby subdue rail 1 vibrational energy, reduce rail 1 Oscillation Amplitude; Simultaneously, thereby, make that vibration frequency range is wideer, influence of temperature change is littler, in broad frequency domain and warm territory scope, all have the favorable damping noise reduction because composite magnetic damping plate 2 and rail 1 do not rely on the bonding viscoelastic damping mechanism that loses.
Self-absorption composite magnetic damping plate of the present invention is used for the method for steel rail vibration damping noise reduction, and its composite magnetic damping plate 2 can be bilayer or multilayer, makes by magnetically damped rubber or magnetically damped plastics macromolecule flexible material for every layer.
The present invention reiterates:
1, composite magnetic damping plate 2 adopts magnetic damping macromolecule flexible materials such as rubber, plastics owing to itself have magnetic, between each layer or and rail between the mutual absorption affinity of generation; Outermost layer magnetic damping plate 2.3 and constraint metal sheet 3 adopt sulfuration or bonding way such as gluing, or directly place one deck constraint metal sheet 3, and the constraint metal sheet 3 outer U type cartridge clips 4 that adopt are fixed on the rail 1.Fix down the auxiliary of constraint metal sheet 3 and U type cartridge clip 4, composite magnetic damping plate 2 can firmly be adsorbed on rail 1 non-working surface, has both avoided bonding, avoided coming off in the use again, mounting method is simple, and is quality controllable, and change conveniently, greatly reduce maintenance cost.
2, composite magnetic damping plate 2 utilizes constraint metal sheet 3 and U type cartridge clip 4 to be fixed on rail 1 non-working surface, when vibration takes place in rail 1, because the irregular and excited target point of rail 1 shape own is positioned at the end, the amplitude difference of rail body each several part is bigger, cause producing local relative repeatedly slip each other between rail 1 outer composite magnetic damping plate 2 inside of adsorbing or with rail 1 and constraint metal sheet 3, under the effect of its related interfaces frictional resistance, vibration mechanical energy will be converted into thermal dissipation and fall, thereby subdue rail 1 vibrational energy, reduce rail 1 Oscillation Amplitude.
Claims (2)
1, a kind of self-absorption composite magnetic damping plate is used for the method for steel rail vibration damping noise reduction, it is characterized in that: be symmetrical arranged composite magnetic damping plate (2) at rail (1) web of the rail and foot place, skin at composite magnetic damping plate (2) is symmetrical arranged constraint metal sheet (3), is fixed in the both sides of rail (1) by a U type cartridge clip (4); Composite magnetic damping plate (2) self has magnetic, do not need bonding rail (1) side that promptly can be adsorbed on, when vibration takes place in rail (1), between composite magnetic damping plate (2) inside or and rail (1) and constraint metal sheet (3) between related interfaces will cause the vibration friction, because the irregular and excited target point of the shape of rail (1) own is positioned at the end, the amplitude difference of rail body each several part was bigger when vibration took place, cause rail (1) go up between composite magnetic damping plate (2) inside of absorption or with rail (1) and constraint metal sheet (3) between produce local relative repeatedly slip, under its related interfaces frictional resistance effect, vibration mechanical energy will be converted into thermal dissipation and fall, thereby subdue rail (1) vibrational energy, reduce rail (1) Oscillation Amplitude; Simultaneously because composite magnetic damping plate (2) and rail (1) thus do not rely on the bonding viscoelastic damping mechanism that loses, make that vibration frequency range is wideer, influence of temperature change is littler, in broad frequency domain and warm territory scope, all have the favorable damping noise reduction.
2, self-absorption composite magnetic damping plate according to claim 1 is used for the method for steel rail vibration damping noise reduction, it is characterized in that: composite magnetic damping plate (2) can be bilayer or multilayer, makes by magnetically damped rubber or magnetically damped plastics macromolecule flexible material for every layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102305314A CN101413230A (en) | 2008-10-14 | 2008-10-14 | Steel rail vibration damping noise reduction method for self-absorption composite magnetic damping plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102305314A CN101413230A (en) | 2008-10-14 | 2008-10-14 | Steel rail vibration damping noise reduction method for self-absorption composite magnetic damping plate |
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| Publication Number | Publication Date |
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| CN101413230A true CN101413230A (en) | 2009-04-22 |
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| CNA2008102305314A Pending CN101413230A (en) | 2008-10-14 | 2008-10-14 | Steel rail vibration damping noise reduction method for self-absorption composite magnetic damping plate |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162210A (en) * | 2011-01-21 | 2011-08-24 | 朱颖 | Magnetic constrained damping vibration and noise reduction sheath |
| CN102268850A (en) * | 2011-06-10 | 2011-12-07 | 北京环铁联合噪声控制科技有限公司 | Damping shock absorber for track |
| CN102304881A (en) * | 2011-06-10 | 2012-01-04 | 北京环铁联合噪声控制科技有限公司 | Steel rail and damping absorber thereof |
| CN102535262A (en) * | 2012-03-22 | 2012-07-04 | 河北金擘机电科技有限公司 | Elastic vibration-reduction ballast bed system |
| CN103998686A (en) * | 2011-10-17 | 2014-08-20 | 积水化学工业株式会社 | Noise insulation device for rail |
| CN104005309A (en) * | 2014-05-10 | 2014-08-27 | 青岛科而泰环境控制技术有限公司 | Shearing type track damping noise reducing device |
| CN104612000A (en) * | 2013-12-05 | 2015-05-13 | 深圳市市政设计研究院有限公司 | Rubber spacer light track structure with vibration reduction and noise reduction functions |
| CN106758571A (en) * | 2017-02-21 | 2017-05-31 | 陕西长美科技有限责任公司 | A kind of track vibration damping denoising device |
| CN108373886A (en) * | 2016-10-27 | 2018-08-07 | 郑州宇通客车股份有限公司 | A kind of preparation method and magnetic coupling damping sheet of magnetic coupling damping sheet, the preparation method of water fender |
| CN108486968A (en) * | 2018-04-10 | 2018-09-04 | 芜湖撼江智能科技有限公司 | A kind of low noise shock-absorbing track |
| CN109853302A (en) * | 2019-01-04 | 2019-06-07 | 同济大学 | A kind of rail damper based on quality enlarged structure |
| CN116945129A (en) * | 2023-09-21 | 2023-10-27 | 广州第七轴智能设备有限公司 | Truss device of heavy-duty robot |
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2008
- 2008-10-14 CN CNA2008102305314A patent/CN101413230A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162210A (en) * | 2011-01-21 | 2011-08-24 | 朱颖 | Magnetic constrained damping vibration and noise reduction sheath |
| CN102268850B (en) * | 2011-06-10 | 2015-08-05 | 北京环铁联合噪声控制科技有限公司 | Damping shock absorber for track |
| CN102268850A (en) * | 2011-06-10 | 2011-12-07 | 北京环铁联合噪声控制科技有限公司 | Damping shock absorber for track |
| CN102304881A (en) * | 2011-06-10 | 2012-01-04 | 北京环铁联合噪声控制科技有限公司 | Steel rail and damping absorber thereof |
| CN102304881B (en) * | 2011-06-10 | 2015-04-01 | 北京环铁联合噪声控制科技有限公司 | Steel rail and damping absorber thereof |
| CN103998686A (en) * | 2011-10-17 | 2014-08-20 | 积水化学工业株式会社 | Noise insulation device for rail |
| CN103998686B (en) * | 2011-10-17 | 2016-06-29 | 积水化学工业株式会社 | The sound arrester of track |
| CN102535262A (en) * | 2012-03-22 | 2012-07-04 | 河北金擘机电科技有限公司 | Elastic vibration-reduction ballast bed system |
| CN102535262B (en) * | 2012-03-22 | 2014-07-09 | 河北金擘机电科技有限公司 | Elastic vibration-reduction ballast bed system |
| CN104612000A (en) * | 2013-12-05 | 2015-05-13 | 深圳市市政设计研究院有限公司 | Rubber spacer light track structure with vibration reduction and noise reduction functions |
| CN104005309B (en) * | 2014-05-10 | 2015-11-04 | 青岛科而泰环境控制技术有限公司 | Shearing track vibration damping denoising device |
| CN104005309A (en) * | 2014-05-10 | 2014-08-27 | 青岛科而泰环境控制技术有限公司 | Shearing type track damping noise reducing device |
| CN108373886A (en) * | 2016-10-27 | 2018-08-07 | 郑州宇通客车股份有限公司 | A kind of preparation method and magnetic coupling damping sheet of magnetic coupling damping sheet, the preparation method of water fender |
| CN108373886B (en) * | 2016-10-27 | 2020-10-02 | 郑州宇通客车股份有限公司 | Preparation method of magnetic composite damping plate, magnetic composite damping plate and preparation method of water baffle |
| CN106758571A (en) * | 2017-02-21 | 2017-05-31 | 陕西长美科技有限责任公司 | A kind of track vibration damping denoising device |
| CN108486968A (en) * | 2018-04-10 | 2018-09-04 | 芜湖撼江智能科技有限公司 | A kind of low noise shock-absorbing track |
| CN109853302A (en) * | 2019-01-04 | 2019-06-07 | 同济大学 | A kind of rail damper based on quality enlarged structure |
| CN116945129A (en) * | 2023-09-21 | 2023-10-27 | 广州第七轴智能设备有限公司 | Truss device of heavy-duty robot |
| CN116945129B (en) * | 2023-09-21 | 2023-11-28 | 广州第七轴智能设备有限公司 | Truss device of heavy-duty robot |
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Owner name: LUOYANG SHUANGRUI RUBBER AND PLASTIC SCIENCE CO., Free format text: FORMER OWNER: CHINA SHIPBUILDING INDUSTRY CO., LTD. LUOYANG BRANCH CO.,LTD. Effective date: 20090821 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090821 Address after: Address 40, Binhe Road, hi tech Development Zone, Henan, Luoyang: 471039 Applicant after: Luoyang Shuangrui Rubber & Plastic Technology Co., Ltd. Address before: 21, Xiyuan Road, Jianxi District, Henan City, Luoyang Province, China: 471039 Applicant before: China Shipbuilding Industry Corp. Luoyang Branch |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090422 |