CN1807756A - Dynamic vibration-absorbing multilayer damping-constraining steel rail silencer - Google Patents
Dynamic vibration-absorbing multilayer damping-constraining steel rail silencer Download PDFInfo
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- CN1807756A CN1807756A CN 200610023902 CN200610023902A CN1807756A CN 1807756 A CN1807756 A CN 1807756A CN 200610023902 CN200610023902 CN 200610023902 CN 200610023902 A CN200610023902 A CN 200610023902A CN 1807756 A CN1807756 A CN 1807756A
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Abstract
The invention relates to a dynamic absorber multilayer restrict damping steel rail muffler, belonging to the noise control technique. Wherein, from inner to outer, it comprises the high-flexibility energy-consumption material layer, the first quality layer, the first damping layer, the first restrict layer, the second damping layer, the second restrict layer, the third damping layer, the third restrict layer, and the protective layer. Wherein, the high-flexibility energy consumption material layer forms the distributed flexible elements of said dynamic absorber; the first quality, three damping layers and the restrict layer form the distributed quality of dynamic absorber; the distributed flexible element and the distributed quality form a group of distributed parameters; and said distributed quality also be used as three layers of damping resistance to reduce the vibration deformation of distributed quality. The invention can be mounted at the rail waist of noise sensible area of railway or city traffic roads, to reduce the noise of wheel and rail especially the noise generated by the brake and friction.
Description
Technical field
What the present invention relates to is the sound absorber in a kind of noise control technique field, particularly a kind of dynamic vibration-absorbing multilayer damping-constraining steel rail silencer.
Background technology
The Noise Control problem more and more is subject to people's attention, and ambient noise is directly connected to people's quality of life, even people's physiology and mental health is had material impact.The noise of wheel track traffic, especially urban track traffic has become the important pollution sources that influence the area along the line acoustic environment.For the middle low speed wheel track traffic lines of speed per hour below 120km/h, wheel-rail noise is the main part in the rail transit noise.In order to reduce wheel-rail noise, researcher and engineer have proposed technology such as elastic wheel, wheel damping paster, rail elastic damping pad, spring secures rail to sleeper, the plate of floating, use principles such as vibration isolation and absorbing respectively, reduce the vibration of wheel and rail, reduce the vibration force that rail is passed to support rail platform and even viaduct, reduce the vibration radiation sound of wheel, rail and viaduct.The device of these control wheel-rail noises not only will be guaranteed the safety of train driving owing to be installed on wheel hub or the rail, also will meet the demands aspect application life, weather resisteant, the maintenanceability, and can not influence the operate as normal of circuit communication signal.
Find through literature search prior art, patent name is: the low noise railway, number of patent application 03106575.9, publication number 1526878, this patent readme is: " rail is the part of railway; on the reverse side of the upper strata steel plate on the rail; and lower floor's steel plate; closely cover last layer on the girder steel and fall noise floor; fall the noise floor sawdust board; woollen blanket etc. are made, after these materials stick on the rail, can sponge a part of noise on the rail, can make the clear and melodious loud simple metal sound that originally sends on the rail become the low sound, than low noise clunk is arranged, between last lower steel plate, the noise that the upper strata steel plate produces can be reduced after casting cement concrete in the girder steel side, in sum, thereby when having reached train and on railway, travelling, the purpose that the noise that produces between wheel and the rail can the point low spot." this product covers sawdust board, woollen blanket etc. on rail, the principle of employing belongs to damping shock absorption basically, though may absorb a part of rail vibration energy, the damping of sawdust board and woollen blanket is little, so poor effect.
Summary of the invention
The objective of the invention is to provides a kind of dynamic vibration-absorbing multilayer damping-constraining steel rail silencer at the deficiencies in the prior art and defective.Make its both sides that are applied in the rail web of the rail of railway, urban track traffic, reduce wheel-rail noise, the present invention has substantial result of use, satisfies the requirement of traffic noise control.
The present invention is achieved by the following technical solutions; the present invention is layering successively, and structure from inside to outside is: the elastomeric property consumptive material bed of material, first quality layers, first damping layer, first restraint layer, second damping layer, second restraint layer, the 3rd damping layer, the 3rd restraint layer and topping constitute.The elastomeric property consumptive material bed of material constitutes the distribution flexible member of dynamic vibration absorber, first quality layers and three groups of damping layers and restraint layer constitute the distributed mass of dynamic vibration absorber, distribution flexible member and distributed mass constitute the dynamic vibration absorber of a component cloth parameter, can absorb the energy of rail vibration, especially the energy of low frequency vibration.The distributed mass that first quality layers and three groups of damping layers and restraint layer constitute dynamic vibration absorber can also reduce the vibration deformation of distributed mass, the energy of medium-high frequency vibration component especially wherein as three layers of damping-constraining simultaneously.
Cross section of the present invention is a C shape, and is identical with the web of the rail, rail head reverse side and the profile above the flange of rail of rail cross section, is convenient to and rail applying installation.Scene of the present invention is easy for installation, and the bonding adhesive of use does not have corrosiveness to rail, does not also influence the function of rail as communication line.Because length of the present invention is compared with the bump leveller of continuous stickup less than the spacing of rail fastening, can carry out single being installed between the adjacent fastener, easy construction is especially installed at the curved section rail.And because length of the present invention is shorter, after bonding was installed on the rail, elastomeric property consumptive material bed of material adequate remedy rail and thermal expansion coefficient difference of the present invention can not produce that adhesive surface is torn by thermal stress and the phenomenon that causes the present invention to come off from rail.
The present invention adopts the composite principle of dynamic vibration absorber and multilayer damping-constraining, constitutes steel rail silencer.Each ingredient structure has been born different functions, for example: high resiliency energy consumption layer and finish the usefulness of dynamic vibration absorber by the distributed mass that first quality layers and three groups of damping-constrainings constitute, first quality layers and three groups of damping-constrainings constitute the usefulness of also finishing multilayer damping-constraining.Owing to adopted the composite construction of dynamic absorber and multilayer damping-constraining, the present invention widens greatly to the frequency range that the absorbing of rail is eliminated the noise, and especially the low frequency vibration of rail and noise can be effectively controlled, and this is a technical essential of the present invention.In addition, adopt three layers of damping-constraining, make the present invention absorb the effect that consumes rail vibration and also be far longer than the individual layer damping-constraining.
Test shows, the following 300Hz that is limited to of effective frequency of the present invention, the rail of 60kg/m is installed after the present invention, can reduce the low-frequency noise 4 ~ 10dB in the rail noise, can reduce the high-frequency noises 10-30dB in the rail noise.The present invention is installed on the web of the rail of rail in noise-sensitive zone of railway or city rail traffic route, can significantly reduces wheel-rail noise, especially brake and slide the generation howling that rubs.
Description of drawings
Fig. 1 is the present invention's cross section structure schematic diagram on rail.
Fig. 2 is the schematic diagram of the present invention installation site on rail.
The specific embodiment
As shown in Figure 1; the present invention is layering successively, and structure from inside to outside is: the elastomeric property consumptive material bed of material 1, first quality layers 2, first damping layer 3, first restraint layer 4, second damping layer 5, second restraint layer 6, the 3rd damping layer 7, the 3rd restraint layer 8 and topping 9.Wherein, the elastomeric property consumptive material bed of material 1 constitutes the distribution flexible member of dynamic vibration absorber; first quality layers 2, first damping layer 3, first restraint layer 4, second damping layer 5, second restraint layer 6, the 3rd damping layer 7, the 3rd restraint layer 8 and the topping 9 common distributed masses that constitute dynamic vibration absorber; distribution flexible member and distributed mass constitute the dynamic vibration absorber of a component cloth parameter; can absorb the energy of rail vibration, especially the energy of low frequency vibration.The distributed mass of first quality layers 2, first damping layer 3, first restraint layer 4, second damping layer 5, second restraint layer 6, the 3rd damping layer 7 and the 3rd restraint layer 8 formation dynamic vibration absorbers simultaneously can also be as three layers of damping-constraining, reduce the vibration deformation of distributed mass, further absorb the vibrational energy of rail, the energy of medium-high frequency vibration component especially wherein.Topping 9 materials are the rubber or the other materials of anti-irradiation, high temperature, low temperature, anticorrosion and waterproof, shield.
According to the demand of environment for use, the multilayer damping-constraining among the present invention can adopt the structure of three layers of damping-constraining shown in Figure 1, also can adopt the structure of other multilayer damping-constrainings, as individual layer, two-layer or four layers of damping-constraining.
As illustrated in fig. 1 and 2, cross section of the present invention is a C shape, and is identical with rail head 10 reverse side, the web of the rail 11 and the profile above the flange of rail 12 of rail cross section, sticks with glue the waist that agent is bonded in rail, length can be installed on the rail between support rail platform 14 fasteners 13 less than the spacing of rail fastening 13.
Claims (5)
1, a kind of dynamic vibration-absorbing multilayer damping-constraining steel rail silencer; it is characterized in that; layering successively, structure from inside to outside is: the elastomeric property consumptive material bed of material (1), first quality layers (2), first damping layer (3), first restraint layer (4), second damping layer (5), second restraint layer (6), the 3rd damping layer (7), the 3rd restraint layer (8) and topping (9).
2, dynamic vibration-absorbing multilayer damping-constraining steel rail silencer according to claim 1; it is characterized in that; the elastomeric property consumptive material bed of material (1) constitutes the distribution flexible member of dynamic vibration absorber; first quality layers (2), first damping layer (3), first restraint layer (4), second damping layer (5), second restraint layer (6), the 3rd damping layer (7), the 3rd restraint layer (8) and topping (9) constitute the distributed mass of dynamic vibration absorber jointly, and distribution flexible member and distributed mass constitute the dynamic vibration absorber of a component cloth parameter.
3, according to claim 1 or 2 described dynamic vibration-absorbing multilayer damping-constraining steel rail silencers, it is characterized in that, the distributed mass of first quality layers (2), first damping layer (3), first restraint layer (4), second damping layer (5), second restraint layer (6), the 3rd damping layer (7) and the 3rd restraint layer (8) formation dynamic vibration absorber simultaneously can also be as three layers of damping-constraining, reduce the vibration deformation of distributed mass, further absorb the vibrational energy of rail.
4, dynamic vibration-absorbing multilayer damping-constraining steel rail silencer according to claim 1 is characterized in that, length is less than the spacing of rail fastening (13).
5, dynamic vibration-absorbing multilayer damping-constraining steel rail silencer according to claim 1 is characterized in that, cross section is a C shape, sticks with glue the waist that agent is bonded in rail, is installed on the rail between support rail platform (14) fastener (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610023902 CN1807756A (en) | 2006-02-16 | 2006-02-16 | Dynamic vibration-absorbing multilayer damping-constraining steel rail silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610023902 CN1807756A (en) | 2006-02-16 | 2006-02-16 | Dynamic vibration-absorbing multilayer damping-constraining steel rail silencer |
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| CN1807756A true CN1807756A (en) | 2006-07-26 |
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| CN 200610023902 Pending CN1807756A (en) | 2006-02-16 | 2006-02-16 | Dynamic vibration-absorbing multilayer damping-constraining steel rail silencer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103498392A (en) * | 2013-09-11 | 2014-01-08 | 毛建红 | Damping steel rail |
| CN103998686A (en) * | 2011-10-17 | 2014-08-20 | 积水化学工业株式会社 | Noise insulation device for rail |
| CN110593025A (en) * | 2019-10-22 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Dynamic vibration absorber for corrugation steel rail |
-
2006
- 2006-02-16 CN CN 200610023902 patent/CN1807756A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN103498392A (en) * | 2013-09-11 | 2014-01-08 | 毛建红 | Damping steel rail |
| CN103498392B (en) * | 2013-09-11 | 2016-01-27 | 华东交通大学 | A kind of damping steel rail |
| CN110593025A (en) * | 2019-10-22 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Dynamic vibration absorber for corrugation steel rail |
| CN110593025B (en) * | 2019-10-22 | 2024-03-26 | 中铁二院工程集团有限责任公司 | Dynamic vibration absorber for wave-grinding steel rail |
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