CN101413233A - Method and device for designing shock and vibration absorption type steel rail suspending fastener - Google Patents
Method and device for designing shock and vibration absorption type steel rail suspending fastener Download PDFInfo
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- CN101413233A CN101413233A CNA200810230964XA CN200810230964A CN101413233A CN 101413233 A CN101413233 A CN 101413233A CN A200810230964X A CNA200810230964X A CN A200810230964XA CN 200810230964 A CN200810230964 A CN 200810230964A CN 101413233 A CN101413233 A CN 101413233A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 title claims description 40
- 230000035939 shock Effects 0.000 title claims description 37
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 230000005284 excitation Effects 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims abstract description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims description 27
- 238000013016 damping Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 229910001374 Invar Inorganic materials 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 6
- 241000282472 Canis lupus familiaris Species 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The invention discloses a design method and a device for a vibration absorbing steel rail suspension fastener. One or a plurality of resonant mass block mass blocks a3 or resonant mass block mass blocks b4 are inlaid in a non-metallic elastic part (2) respectively, are arranged on a connecting support (5), are symmetrically arranged at both sides of a steel rail (1), and are in a suspended state; the bottom of the connecting support is provided with a height-adjustment gasket (6); the height-adjustment gasket is fixed on a guide groove of a bottom plate (8) through a bolt (7); the middle part of the bottom plate is provided with an anti-collision liner plate (9); one or a plurality of layers of height-adjustment liner plates (10) can be arranged under the bottom plate; and a coupling liner plate (11) is arranged under the height-adjustment liner plates and is fixed on an underrail foundation (13) through spike dogs. The mass of the resonant mass block mass blocks and the distribution positions of the inlaying are optimized according to the optimum vibration absorbing effect, can inhibit, transfer and absorb the resonance or vibration energy produced by the vibration frequency range of the steel rail, reduce the vibration of the steel rail and radiation noises as well as the reaction of the steel rail on train wheels, can also inhibit the generation and increase of the waviness of the steel rail, and control the vibration and noise caused by the excitation of the waviness of the steel rail to a wheel rail.
Description
Technical field
The invention belongs to the track vibration damping denoising technical field, be applicable to that especially ew lines such as city underground, light rail, inter-city passenger rail and high-speed railway traffic are laid or the method for designing and the device of a kind of shock and vibration absorption type steel rail suspending fastener that old line is transformed.
Background technology
Use vibration and noise reduction fastener and be and administer the vibration that produces in the City Rail Transit System running and a kind of effective means of noise pollution.Fastener system design and the varied same rail head lateral displacement of structure, according to difference constraint position to rail, can be divided into foot constraint formula and web of the rail constraint formula, wherein web of the rail constraint formula fastener retrains rail web of the rail position, rail is in suspended state during operate as normal, the suffered torsional moment of this fastener system is obviously little than foot constraint formula, can obtain minimum vertical stiffness, can obviously improve fastener system to the isolation effect of wheel-rail impact vibration to the propagation of sub rail foundation.But this structure also has some shortcomings, the reduction of vertical stiffness, though improved the vibration isolation effect, but increased the vertical distortion of rail, aggravated the rail wave degree, and then rail vibration and noise radiation have been increased, and increased the reaction of building on the steel track to track, reduced riding comfort.
For reducing rail vibration and noise radiation, often adopt following method fasteners to use:
1, uses the rail dynamic vibration absorber: when using the vibration isolation rail fastening, re-use the rail dynamic vibration absorber, it can better absorb rail vibration, reduce the rail noise radiation, but it costs an arm and a leg, mounting process is complicated and increased the rail system parts, maintenance has also produced certain influence to track construction, is not suitable for sizable application.
2, rail is carried out freedom or damping-constraining processing, promptly stick freedom or damping-constraining material on the rail surface.This method has certain effect to reducing the rail dither, but damping material must fit tightly with the rail surface, sticks complex process, maintenance, replacing difficulty, and damping sheet comes off easily when long-term the use, is difficult in the actual engineering and obtains large-scale application.
3, improvement rail
The one, adopt heavy rail or short rail, promptly increase rail strength, reduce the rail height, thereby improve the rail enabling capabilities or increase the rail mass of vibration, this method will increase the orbit construction cost greatly;
The 2nd, adopt the damping alloy rail, its loss is handled far below viscoelastic damping, and effectiveness in vibration suppression is relatively poor and cost is very high, also is difficult to apply in actual engineering.
Summary of the invention
For addressing the above problem, the invention provides a kind of method for designing and device of shock and vibration absorption type steel rail suspending fastener, this method for designing and the device that produced are by designing the generation that floated ultromotivity shock absorption system is controlled the rail dynamic deformation and reduced the rail wave degree in the track both sides, can effectively overcome rail because of low rail vibration that causes of vertical stiffness and noise increase problem, have simple in structurely, do not increase additional system, convenient for installation and maintenance, the cost performance height, higher actual application value.
For achieving the above object, the present invention adopts following technical scheme:
The method for designing of described shock and vibration absorption type steel rail suspending fastener is in the rail bilateral symmetry one group of ultromotivity shock absorption system to be set, be inlaid with one or several resonant mass gauge blocks in the nonmetal elastic component that this system comprised, the quality of resonant mass gauge block and the distributing position of being inlayed are by best vibration damping effect optimization, can resonance or the vibrational energy that the rail vibration frequency range is produced be suppressed, shift and absorption, reduce the reaction of rail vibration and radiated noise and rail to wheel, also can suppress the generation and the increase of rail wave degree simultaneously, thereby control invar rail wave degree is to the vibration and the noise of the excitation and the generation of wheel track; This system is suspended in the rail both sides by connecting stent support, connect and be fixed on the guide groove of base plate by bolt again after pad is heightened in the frame bottom installation, when not tightening, bolt can drive to be heightened pad and is connected support and is free to slide along rail is vertical in the base plate guide groove, not only can regulate the clamping force that connects support, all right buffer rail distance; Be provided with anti-collision liner plate in the middle of the base plate, under the base plate one or more layers height adjusting cushion plate can be set, height adjusting cushion plate for the coupling backing plate, together is fixed on sub rail foundation by railway spike with base plate, height adjusting cushion plate and coupling backing plate down again.
The device of described shock and vibration absorption type steel rail suspending fastener, in this device, include floated ultromotivity shock absorption system, this system is made of nonmetal elastic component and resonance mass, promptly in nonmetal elastic component, be inlaid with one or several resonant mass gauge block a or resonant mass gauge block b respectively, again this system is installed in to connect on the support and be symmetricly set on side, rail both sides and is suspension, connect and be fixed on the guide groove of base plate by bolt again after pad is heightened in the frame bottom installation, be provided with anti-collision liner plate in the middle of the base plate, under the base plate one or more layers height adjusting cushion plate can be set, height adjusting cushion plate is down the coupling backing plate, again by railway spike with base plate, height adjusting cushion plate and coupling backing plate together are fixed on sub rail foundation.
The structure of described shock and vibration absorption type steel rail suspending fastener, its resonant mass gauge block can be embedded in the nonmetal elastic component fully, also can partly be exposed to outside the nonmetal elastic component.
The structure of described shock and vibration absorption type steel rail suspending fastener, its resonant mass gauge block are embedded in mode gluing the connecing in the nonmetal elastic component, or vulcanize bonding, perhaps not bonding.
The structure of described shock and vibration absorption type steel rail suspending fastener, the shape of its resonant mass gauge block a and resonance mass b can be respectively a cylinder, or prism, these shapes or be the regular geometric shape, or be irregular how much shapes.
The structure of described shock and vibration absorption type steel rail suspending fastener, its resonant mass gauge block a and the employed material of resonance mass b can be all metal, or be all nonmetal, or metal+nonmetal.
The structure of described shock and vibration absorption type steel rail suspending fastener, its connection support of installing in the rail both sides can be the movable setting in two ends, or the movable other end of an end is fixed.
The structure of described shock and vibration absorption type steel rail suspending fastener, it connects support and also can adopt metal spring, shell fragment, draw-in groove form to connect except that bolt with the coupling method of base plate.
Because adopt aforesaid technical scheme, the present invention has following superiority:
1, design of the present invention has overcome low rail dynamic deformation that brings of common steel rail suspending fastener vertical stiffness and rail wave degree aggravation problem, under the prerequisite that keeps high anti-vibration performance, the noise radiation of effectively having controlled rail vibration and having caused thus, also can effectively suppress simultaneously the generation and the aggravation of rail wave degree, reduced the reaction of rail, improved riding comfort vehicle.
2, structure of the present invention does not increase additional system, installation, maintenance and former floating rail formula fastener are similar, and effect of vibration and noise reduction is good, the cost performance height, rail damping sheet, rail dynamic vibration absorber etc. can be effectively substituted, engineerings such as city underground, light rail can be widely used in.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among Fig. 1: 1-rail; 2-nonmetal elastic component; 3-resonant mass gauge block a; 4-resonant mass gauge block b; 5-connection support; 6-heighten pad; 7-bolt; 8-base plate; 9-anti-collision liner plate; 10-height adjusting cushion plate; 11-coupling backing plate; 12-railway spike; 13-sub rail foundation.
The specific embodiment
The method for designing of shock and vibration absorption type steel rail suspending fastener of the present invention is in the rail bilateral symmetry one group of ultromotivity shock absorption system to be set, be inlaid with one or several resonant mass gauge blocks in the nonmetal elastic component that this system comprised, the quality of resonant mass gauge block and the distributing position of being inlayed are by best vibration damping effect optimization, can resonance or the vibrational energy that the rail vibration frequency range is produced be suppressed, shift and absorption, reduce the reaction of rail vibration and radiated noise and rail to wheel, also can suppress the generation and the increase of rail wave degree simultaneously, thereby control invar rail wave degree is to the vibration and the noise of the excitation and the generation of wheel track; This system is suspended in the rail both sides by connecting stent support, connect and be fixed on the guide groove of base plate by bolt again after pad is heightened in the frame bottom installation, when not tightening, bolt can drive to be heightened pad and is connected support and is free to slide along rail is vertical in the base plate guide groove, not only can regulate the clamping force that connects support, all right buffer rail distance; Be provided with anti-collision liner plate in the middle of the base plate, under the base plate one or more layers height adjusting cushion plate can be set, height adjusting cushion plate for the coupling backing plate, together is fixed on sub rail foundation by railway spike with base plate, height adjusting cushion plate and coupling backing plate down again.
In conjunction with Fig. 1, the device of shock and vibration absorption type steel rail suspending fastener of the present invention, in this device, include floated ultromotivity shock absorption system, this system is made of nonmetal elastic component (2) and resonance mass, promptly be inlaid with one or several resonant mass gauge blocks a (3) or resonant mass gauge block b (4) respectively in nonmetal elastic component (2) lining, again this system is installed in connection support (5) and goes up and be symmetricly set on the other suspension that is in rail (1) both sides, connect and be fixed on the guide groove of base plate (8) by bolt (7) again after pad (6) is heightened in the installation of support (5) bottom, be provided with anti-collision liner plate (9) in the middle of the base plate (8), base plate (8) can be provided with one or more layers height adjusting cushion plate (10) down, height adjusting cushion plate (10) is coupling backing plate (11) down, passes through railway spike (12) again with base plate (8), height adjusting cushion plate (10) and coupling backing plate (11) together are fixed on sub rail foundation (13).
The structure of shock and vibration absorption type steel rail suspending fastener of the present invention, its resonant mass gauge block can be embedded in the nonmetal elastic component fully, also can partly be exposed to outside the nonmetal elastic component.
The structure of shock and vibration absorption type steel rail suspending fastener of the present invention, its resonant mass gauge block are embedded in mode gluing the connecing in the nonmetal elastic component, or vulcanize bonding, perhaps not bonding.
The structure of shock and vibration absorption type steel rail suspending fastener of the present invention, the shape of its resonant mass gauge block a (3) and resonance mass b (4) can be respectively a cylinder, or prism, these shapes or be the regular geometric shape, or be irregular how much shapes.
The structure of shock and vibration absorption type steel rail suspending fastener of the present invention, its resonant mass gauge block a (3) and the employed material of resonance mass b (4) can be all metal, or be all nonmetal, or metal+nonmetal.
The structure of shock and vibration absorption type steel rail suspending fastener of the present invention, its connection support (5) of installing in rail (1) both sides can be the movable setting in two ends, or the movable other end of an end is fixed.
The structure of shock and vibration absorption type steel rail suspending fastener of the present invention, it connects support (5) and also can adopt metal spring, shell fragment, draw-in groove form to connect except that bolt with the coupling method of base plate (8).
Resonant mass gauge block a (3) and resonance mass b (4) are embedded in the floated ultromotivity shock absorption system of nonmetal elastic component (2) formation at rail (1) respectively, when vibration takes place in rail (1), can suppress, shift or absorb vibrational energy from rail (1), decay rail (1) amplitude reduces the noise radiation that rail (1) causes because of vibration.Simultaneously,, also reduced the reaction of rail (1), improved riding comfort vehicle owing to suppressed the generation and the aggravation of rail (1) wave degree.
Floated ultromotivity shock absorption system of the present invention and additional fastener combine together, do not need to increase additional system, installation, maintenance and former floating rail formula fastener are similar, and effect of vibration and noise reduction is good, the cost performance height, can effectively substitute rail (1) damping sheet, rail (1) dynamic vibration absorber etc., be widely used in engineerings such as city underground, light rail.
In addition, the resonant mass gauge block also can not inlayed in nonmetal elastic component (2) lining, can reach vibration and noise reducing purpose well equally.
Claims (8)
1, a kind of method for designing of shock and vibration absorption type steel rail suspending fastener, it is characterized in that: one group of ultromotivity shock absorption system is set in the rail bilateral symmetry, be inlaid with one or several resonant mass gauge blocks in the nonmetal elastic component that this system comprised, the quality of resonant mass gauge block and the distributing position of being inlayed are by best vibration damping effect optimization, can resonance or the vibrational energy that the rail vibration frequency range is produced be suppressed, shift and absorption, reduce the reaction of rail vibration and radiated noise and rail to wheel, also can suppress the generation and the increase of rail wave degree simultaneously, thereby control invar rail wave degree is to the vibration and the noise of the excitation and the generation of wheel track; This system is suspended in the rail both sides by connecting stent support, connect and be fixed on the guide groove of base plate by bolt again after pad is heightened in the frame bottom installation, when not tightening, bolt can drive to be heightened pad and is connected support and is free to slide along rail is vertical in the base plate guide groove, not only can regulate the clamping force that connects support, all right buffer rail distance; Be provided with anti-collision liner plate in the middle of the base plate, under the base plate one or more layers height adjusting cushion plate can be set, height adjusting cushion plate for the coupling backing plate, together is fixed on sub rail foundation by railway spike with base plate, height adjusting cushion plate and coupling backing plate down again.
2, a kind of device of shock and vibration absorption type steel rail suspending fastener, it is characterized in that: in this device, include floated ultromotivity shock absorption system, this system is made of nonmetal elastic component (2) and resonance mass, promptly be inlaid with one or several resonant mass gauge blocks a (3) or resonant mass gauge block b (4) respectively in nonmetal elastic component (2) lining, again this system is installed in connection support (5) and goes up and be symmetricly set on the other suspension that is in rail (1) both sides, connect and be fixed on the guide groove of base plate (8) by bolt (7) again after pad (6) is heightened in the installation of support (5) bottom, be provided with anti-collision liner plate (9) in the middle of the base plate (8), base plate (8) can be provided with one or more layers height adjusting cushion plate (10) down, height adjusting cushion plate (10) is coupling backing plate (11) down, passes through railway spike (12) again with base plate (8), height adjusting cushion plate (10) and coupling backing plate (11) together are fixed on sub rail foundation (13).
3, the structure of shock and vibration absorption type steel rail suspending fastener according to claim 2 is characterized in that: its resonant mass gauge block can be embedded in the nonmetal elastic component fully, also can partly be exposed to outside the nonmetal elastic component.
4, the structure of shock and vibration absorption type steel rail suspending fastener according to claim 2 is characterized in that: its resonant mass gauge block is embedded in mode gluing the connecing in the nonmetal elastic component, or vulcanizes bonding, perhaps not bonding.
5, the structure of shock and vibration absorption type steel rail suspending fastener according to claim 2 is characterized in that: the shape of its resonant mass gauge block a (3) and resonance mass b (4) can be respectively a cylinder, or prism.
6, the structure of shock and vibration absorption type steel rail suspending fastener according to claim 2 is characterized in that: its resonant mass gauge block a (3) and the employed material of resonance mass b (4) can be all metal, or be all nonmetal, or metal+nonmetal.
7, the structure of shock and vibration absorption type steel rail suspending fastener according to claim 2 is characterized in that: its connection support (5) of installing in rail (1) both sides can be the movable setting in two ends, or the movable other end of an end is fixed.
8, the structure of shock and vibration absorption type steel rail suspending fastener according to claim 2 is characterized in that: it connects support (5) and also can adopt metal spring, shell fragment, draw-in groove form to connect except that bolt with the coupling method of base plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810230964XA CN101413233A (en) | 2008-11-11 | 2008-11-11 | Method and device for designing shock and vibration absorption type steel rail suspending fastener |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200810230964XA CN101413233A (en) | 2008-11-11 | 2008-11-11 | Method and device for designing shock and vibration absorption type steel rail suspending fastener |
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| CN101413233A true CN101413233A (en) | 2009-04-22 |
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| CNA200810230964XA Pending CN101413233A (en) | 2008-11-11 | 2008-11-11 | Method and device for designing shock and vibration absorption type steel rail suspending fastener |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831848A (en) * | 2010-04-16 | 2010-09-15 | 杨金福 | Construction method for realizing positioning of rail and assisting in reducing running noises |
| CN102561115A (en) * | 2011-12-02 | 2012-07-11 | 合肥工业大学 | Composite track noise-reducing shock-absorbing structure |
| CN102808364A (en) * | 2012-08-21 | 2012-12-05 | 浙江天铁实业股份有限公司 | Waveguide vibration absorption and noise elimination device for steel rail |
| CN104131497A (en) * | 2014-07-23 | 2014-11-05 | 北京九州一轨隔振技术有限公司 | Vibration damping fastener for groove type rail of streetcar |
| CN104131496A (en) * | 2014-07-23 | 2014-11-05 | 北京九州一轨隔振技术有限公司 | Removable vibration damping tramcar track |
| CN105507087A (en) * | 2016-01-06 | 2016-04-20 | 京投银泰股份有限公司 | Locking device for rail web-lifting steel rail damping fastener |
| 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 |
| CN108361176A (en) * | 2018-01-22 | 2018-08-03 | 广州万宝集团压缩机有限公司 | A kind of shock absorption footpad |
| WO2018157665A1 (en) * | 2017-03-03 | 2018-09-07 | 上海工程技术大学 | Detachable multi-order resonance track roadbed dynamic vibration absorption assembly |
| CN109236944A (en) * | 2018-09-25 | 2019-01-18 | 同济大学 | A kind of railcar axle box suspension type track wave mill prevention and treatment device |
| CN109868695A (en) * | 2019-04-10 | 2019-06-11 | 华东交通大学 | A kind of novel cycle fastener structures based on hydraulic viscous damping |
| CN110295518A (en) * | 2018-03-21 | 2019-10-01 | 洛阳双瑞橡塑科技有限公司 | A kind of resonant mode Damping fastening |
| CN110295517A (en) * | 2018-03-21 | 2019-10-01 | 洛阳双瑞橡塑科技有限公司 | A kind of resonant mode Damping fastening |
| CN112144323A (en) * | 2020-10-22 | 2020-12-29 | 中铁二院工程集团有限责任公司 | Ballastless track steel rail high damping fixed knot constructs |
| CN113753731A (en) * | 2021-09-01 | 2021-12-07 | 太原重工股份有限公司 | Wire rope rope end clamp device |
| CN113818290A (en) * | 2021-11-22 | 2021-12-21 | 成都中拓科技有限公司 | Continuous support floating rail type fastener system |
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2008
- 2008-11-11 CN CNA200810230964XA patent/CN101413233A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831848A (en) * | 2010-04-16 | 2010-09-15 | 杨金福 | Construction method for realizing positioning of rail and assisting in reducing running noises |
| CN102561115A (en) * | 2011-12-02 | 2012-07-11 | 合肥工业大学 | Composite track noise-reducing shock-absorbing structure |
| CN102808364A (en) * | 2012-08-21 | 2012-12-05 | 浙江天铁实业股份有限公司 | Waveguide vibration absorption and noise elimination device for steel rail |
| CN104131497A (en) * | 2014-07-23 | 2014-11-05 | 北京九州一轨隔振技术有限公司 | Vibration damping fastener for groove type rail of streetcar |
| CN104131496A (en) * | 2014-07-23 | 2014-11-05 | 北京九州一轨隔振技术有限公司 | Removable vibration damping tramcar track |
| CN105507087A (en) * | 2016-01-06 | 2016-04-20 | 京投银泰股份有限公司 | Locking device for rail web-lifting steel rail damping fastener |
| 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 |
| WO2018157665A1 (en) * | 2017-03-03 | 2018-09-07 | 上海工程技术大学 | Detachable multi-order resonance track roadbed dynamic vibration absorption assembly |
| CN108361176A (en) * | 2018-01-22 | 2018-08-03 | 广州万宝集团压缩机有限公司 | A kind of shock absorption footpad |
| CN110295518A (en) * | 2018-03-21 | 2019-10-01 | 洛阳双瑞橡塑科技有限公司 | A kind of resonant mode Damping fastening |
| CN110295517A (en) * | 2018-03-21 | 2019-10-01 | 洛阳双瑞橡塑科技有限公司 | A kind of resonant mode Damping fastening |
| CN109236944A (en) * | 2018-09-25 | 2019-01-18 | 同济大学 | A kind of railcar axle box suspension type track wave mill prevention and treatment device |
| CN109236944B (en) * | 2018-09-25 | 2020-06-02 | 同济大学 | A kind of subway vehicle axle box suspension type rail corrugation prevention device |
| CN109868695A (en) * | 2019-04-10 | 2019-06-11 | 华东交通大学 | A kind of novel cycle fastener structures based on hydraulic viscous damping |
| CN109868695B (en) * | 2019-04-10 | 2020-11-06 | 华东交通大学 | A New Periodic Fastener Structure Based on Hydraulic Viscous Damping |
| CN112144323A (en) * | 2020-10-22 | 2020-12-29 | 中铁二院工程集团有限责任公司 | Ballastless track steel rail high damping fixed knot constructs |
| CN113753731A (en) * | 2021-09-01 | 2021-12-07 | 太原重工股份有限公司 | Wire rope rope end clamp device |
| CN113818290A (en) * | 2021-11-22 | 2021-12-21 | 成都中拓科技有限公司 | Continuous support floating rail type fastener system |
| CN113818290B (en) * | 2021-11-22 | 2022-01-28 | 成都中拓科技有限公司 | Continuous support floating rail type fastener system |
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