CN107366200A - A kind of particle damping energy dissipation vibration damping railway ballast pad - Google Patents
A kind of particle damping energy dissipation vibration damping railway ballast pad Download PDFInfo
- Publication number
- CN107366200A CN107366200A CN201710656270.1A CN201710656270A CN107366200A CN 107366200 A CN107366200 A CN 107366200A CN 201710656270 A CN201710656270 A CN 201710656270A CN 107366200 A CN107366200 A CN 107366200A
- Authority
- CN
- China
- Prior art keywords
- energy dissipation
- damping
- particle
- railway ballast
- particle damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- 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 particle damping energy dissipation vibration damping railway ballast pad, it is arranged between railway ballast and track ground, the particle damping energy dissipation vibration damping railway ballast pad includes rubber slab and the particle damping energy dissipation element and steel wire that are embedded in inside the rubber slab；The upper surface of the rubber slab is provided with reserved cementation zone.It is an advantage of the invention that can not only reduce the original rigidity of track structure using the railway ballast pad of particle damping, but also dissipation energy can be played a part of by increasing structural damping, be effectively improved the damping vibration-isolating effect of railway ballast pad.
Description
Technical field
The invention belongs to field of track traffic, and in particular to a kind of particle damping energy dissipation vibration damping railway ballast pad.
Background technology
Railway was quickly grown with City Rail Transit System in recent years, because of its large conveying quantity and the advantage of environmental protection, but was existed
The adverse effect of noise and ambient vibration.
Traditional track structure damping technology has floating plate, Damping fastening, railway ballast pad etc., and their working mechanism is to pass through
The rigidity for changing track structure plays the effect of damping, otherwise these device costs are high, otherwise the vibration of car body can be improved.Institute
It is necessary to develop a kind of new track structure dampening apparatus.
Traditional track structure damping technology has floating plate, Damping fastening, railway ballast pad etc., and their working mechanism is to pass through
The rigidity for changing track structure plays the effect of damping, otherwise these device costs are high, otherwise the vibration of car body can be improved.Institute
It is necessary to develop a kind of new track structure dampening apparatus.
The content of the invention
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of particle damping energy dissipation vibration damping railway ballast
Pad, the railway ballast pad are effectively improved the resistance of railway ballast pad by burying steel wire and particle damping energy dissipation element in rubber slab
Buddhist nun and the ability of dissipation vibrational energy.
The object of the invention is realized and completed by following technical scheme：
A kind of particle damping energy dissipation vibration damping railway ballast pad, is arranged between railway ballast and track ground, the particle damping energy dissipation vibration damping
Railway ballast pad includes rubber slab and the particle damping energy dissipation element and steel wire that are embedded in inside the rubber slab；The rubber slab
Upper surface be provided with reserved cementation zone.
The particle damping energy dissipation element includes housing, and the enclosure interior is provided with damping particles.
The housing is hexahedron, and its length of side is between 1 ~ 2cm.
The material of the damping particles is the combination of any one or more in tungsten powder, lead powder, copper powder and iron powder；Institute
The particle diameter for stating damping particles is 0.001 ~ 0.5mm；The filling rate of damping particles is between 50 ~ 90% described in the enclosure interior.
The composition of the rubber slab includes natural rubber, phenolic resin and hard carbon black.
The rubber slab includes top supporting course and bottom mixed layer；The particle damping energy dissipation element and the steel
Silk is embedded in the bottom mixed layer.
The particle damping energy dissipation element is arranged inside the rubber slab using monolayer array；The particle damping energy dissipation
The distance between the lower surface of element and the lower surface of the rubber slab are more than 1cm；The upper table of the particle damping energy dissipation element
The distance between face and the upper surface of the rubber slab are more than 2cm；Spacing between the adjacent particle damping energy dissipation element
For 2 ~ 4cm.
Particle damping energy dissipation element described in the steel wire encircling, between the steel wire and the particle damping energy dissipation element
Distance is 0.5 ~ 1cm.
The reserved cementation zone is arranged on the both sides of the upper surface of the rubber slab.
It is an advantage of the invention that it is original just not only to reduce track structure using the railway ballast pad of particle damping
Degree, but also dissipation energy can be played a part of by increasing structural damping, it is effectively improved the damping vibration-isolating of railway ballast pad
Effect.
Brief description of the drawings
Fig. 1 is the three-dimensional view of particle damping energy dissipation vibration damping railway ballast pad of the present invention；
Fig. 2 is the section view of particle damping energy dissipation vibration damping railway ballast pad of the present invention；
Fig. 3 is the structural representation of particle damping energy dissipation element in the present invention；
Fig. 4 is the schematic diagram in particle damping energy dissipation vibration damping railway ballast of the present invention pad application process.
Embodiment
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing, with
It is easy to the understanding of technical staff of the same trade：
As Figure 1-4, mark 1-13 is respectively in figure：Particle damping energy dissipation vibration damping railway ballast pad 1, rubber slab 2, particle damping consumption
Can element 3, steel wire 4, reserved cementation zone 5, top supporting course 6, bottom mixed layer 7, housing 8, damping particles 9, track ground 10,
Railway ballast 11, rail 12, sleeper 13.
Embodiment：As shown in Fig. 1,4, the present embodiment is specifically related to a kind of particle damping energy dissipation vibration damping railway ballast pad, is arranged in
Between railway ballast 11 and track ground 10, the particle damping energy dissipation vibration damping railway ballast pad 1 includes rubber slab 2 and is embedded in rubber slab 2
Internal particle damping energy dissipation element 3 and steel wire 4；The upper surface of rubber slab 2 is provided with reserved cementation zone 5.
As shown in Figure 1, 2, the length of rubber slab 2 is 5000mm ~ 4000mm, and its width is 1000mm ~ 1500mm, and it is thick
Spend for 5 ~ 7cm；The composition of rubber slab 2 includes natural rubber, phenolic resin and hard carbon black；Phenolic resin can strengthen rubber slab
2 intensity, hard carbon black can increase the wearability of rubber slab 2；Rubber slab 2 includes top supporting course 6 and bottom mixed layer 7；
In the present embodiment, top supporting course 6 and bottom mixed layer 7 are integrally formed, and particle damping energy dissipation element 3 and steel wire 4 are embedded
In bottom mixed layer 7.
As shown in Figure 1, 2, the steel wire 4 being embedded in rubber slab 2 is used for the rigidity for strengthening rubber slab 2；Gauge of wire is
1mm；For steel wire 4 around particle damping energy dissipation element 3, the distance between steel wire 4 and particle damping energy dissipation element 3 are 0.5 ~ 1cm.
As shown in Figure 2,3, particle damping energy dissipation element 3 is arranged inside rubber slab 2 using monolayer array；Particle damping consumption
The distance between the lower surface of energy element 3 and the lower surface of rubber slab 2 are more than 1cm；The upper surface of particle damping energy dissipation element 3 with
The distance between upper surface of rubber slab 2 is more than 2cm；Spacing between adjacent particle damping energy dissipation element 3 is 2 ~ 4cm；In advance
Stay cementation zone 5 to be arranged on the both sides of the upper surface of rubber slab 2, steel is not provided with inside the rubber slab 2 immediately below reserved cementation zone 5
Silk 4 and particle damping energy dissipation element 3.
As shown in Figure 2,3, it is embedded in the particle damping energy dissipation element 3 inside rubber slab 2 and is mainly used in absorbing particles damping
Passive energy dissipation railway ballast 1 vibrational energy in the course of the work of pad；Particle damping energy dissipation element 3 includes housing 8, is set inside housing 8
It is equipped with damping particles 9.
As shown in Figure 2,3, particle damping energy dissipation element 3 is a kind of passive vibration control technology；When particle damping energy dissipation subtracts
When the railway ballast pad 1 that shakes is in running order, the vibration of particle damping energy dissipation vibration damping railway ballast pad 1 is transferred to particle by rubber slab 2 and hindered
Buddhist nun's dissipative cell 3 so that the damping particles 9 in particle damping energy dissipation element 3 vibrate；In the vibration processes of damping particles 9
In, it can collide and rub between damping particles 9；Collision and friction can consume vibrational energy, and vibrational energy is converted into heat
Amount, so as to realize the effect of dissipation vibrational energy；Particle damping energy dissipation element 3 is embedded in inside rubber slab 2, can effectively be increased
The ability of the dissipation vibrational energy of particle damping energy dissipation vibration damping railway ballast pad 1 of strong the present embodiment.
As shown in figure 3, in the present embodiment, the housing 8 of particle damping energy dissipation element 3 is thin for 1 ~ 4mm Q195 by thickness
Regular hexahedron made of steel plate, its length of side is between 1 ~ 2cm；Used at the joining thin steel sheet of housing 8 with cyanacrylate
Formed for the metal glue sticking of primary raw material.
As shown in figure 3, in the present embodiment, the material of damping particles 9 is any in tungsten powder, lead powder, copper powder and iron powder
One or more combinations, the ratio of the damping particles 9 by adjusting various materials, the totality that can adjust damping particles 9 are close
Degree；The particle diameter of damping particles 9 is 0.001mm to 0.5mm；The filling rate of the internally-damped particle 9 of housing 8 is between 50% to 90%.
As shown in Figures 1 to 3, the particle damping energy dissipation vibration damping railway ballast pad 1 of the present embodiment can be according to different rail track shapes
Dynamic load caused by condition, different train speeds chooses the filling rate of damping particles 9, the material of damping particles 9, particle damping
The parameter such as the arrangement density of dissipative cell 3 and the thickness of rubber slab 2, width, length；The particle damping energy dissipation of the present embodiment subtracts
The making of railway ballast pad of shaking comprises the following steps：
1）Parameter is chosen：Filling rate, the resistance of damping particles 9 are determined by requirement of the grade and circuit of circuit for vibration and noise reducing
The parameters such as the material of Buddhist nun's particle 9, the thickness of the arrangement density of particle damping energy dissipation element 3 and rubber slab 2, width, length；
2）Raw material prepare：It is accurate that dispensing weighs according to formula.In order that rubber and compounding ingredient mutually can be mixed uniformly, it is necessary to right
Material is processed, and rubber will be in 60--70 DEG C of drying room after softened by baking, then cuts glue, breaks glue into fritter；Phenolic resin evaporation moisture,
Impurity screening；Compounding ingredient will be dried；
3）Plasticate：This rubber is plasticated using Mechanical Method, at less high temperature, by the mechanical presses of plasticator and is rubbed
The effect of power is wiped, the degraded of long-chain rubber molecule is shortened, plastic state is changed into by high resiliency state；
4）It is kneaded：Rubber after plasticating is mixed with compounding ingredient, is placed in rubber mixing machine, is acted on by machine mixing, makes compounding ingredient
Completely, it is evenly dispersed in rubber；
5）Shaping：Rubber slab 2 uses calendering formation, and it is thin that the steel wire 4 and particle damping energy dissipation element 3 inside it must apply last layer
Glue, coating process are typically also completed on calender；Steel wire 4 and particle damping energy dissipation element 3 need to be dried before calendering
And impregnation, mould is put into afterwards to be molded in calender；
6）Vulcanization：Rubber slab 2 is vulcanized from rubber vulcanizing machine；So far the particle damping energy dissipation vibration damping railway ballast of the present embodiment
Pad 1 completes.
As shown in Figure 2,4, the installation and application of the particle damping energy dissipation vibration damping railway ballast pad 1 of the present embodiment specifically include with
Lower step：
Preparation of construction：The storage of particle damping energy dissipation vibration damping railway ballast pad 1 should keep dry, clean, prevent intensive ultraviolet radiation, prohibit
Only long-time exposure.Particle damping energy dissipation vibration damping railway ballast pad 1 should be laid by design area, particle damping energy dissipation vibration damping railway ballast pad 1
Seam crossing forbid wide arc gap occurred.Track ground 10（Such as overpass）It must assure that smooth without depression and sharp projection；
In extreme circumstances, the night of low temperature and high relative humidity is with that the daytime of burning sun high temperature and outdoor construction may cause particle damping energy dissipation to subtract
The railway ballast pad 1 that shakes is laid not tight；In order to avoid this phenomenon, 0-25 degrees Celsius of the selection of should trying one's best is applied without carrying out laying in rainy weather
Work；
Clear up track ground：Track ground 10 should be ensured that it is clean, dry, frostless and smooth, avoid the occurrence of depression with it is sharp
Projection；
Lay particle damping energy dissipation vibration damping railway ballast pad 1：Particle damping energy dissipation vibration damping railway ballast pad 1 should laterally be rolled back and forth by track both sides,
Supporting course directly contacts railway ballast 11 upward.Constructed under the conditions of extreme temperature and excessive temperature differentials after construction and long-time storage, it is necessary to
First particle damping energy dissipation vibration damping railway ballast pad 1 is placed on its paving location and unfolds several hours and pastes again, can so be made
Grain damping energy dissipation vibration damping railway ballast pad 1 recovers the compression and tension when being rolled into tubular, preferably controls particle damping energy dissipation to subtract
Shake the size of railway ballast pad 1；
Railway ballast pad is pasted, and the sealed connection between particle damping energy dissipation vibration damping railway ballast pad 1 is by special sweating welder and 10
What Special sealing strips wide ~ 15cm were realized, the seam often located between particle damping energy dissipation vibration damping railway ballast pad 1 all must be effective close
Real bonding；The laying of particle damping energy dissipation vibration damping railway ballast pad 1 should be carried out in strict accordance with arrangement and method for construction, be avoided the occurrence of poorly sealed
Situation.The operation of hot-melt welding machine should perform in strict accordance with regulation, and it is excessive to avoid the occurrence of hot melt；
The laying of the section of track and railway ballast：After particle damping energy dissipation vibration damping railway ballast pad 1 is completed railway ballast 11 should be being covered thereon as soon as possible；
The vehicle of laying railway ballast 11 must use the rubber tyre of no sharp protrusion and slowly travel, and vehicle should avoid suddenly in motion
Braking accelerates；After the completion of railway ballast 11 is laid, the section of track is laid above it；So far the particle damping energy dissipation vibration reduction road of the present embodiment
The laying of tiny fragments of stone, coal, etc. pad 1 is completed.
As shown in figure 4, in train travelling process, wheel and rail 12 interact caused by vibration passed by sleeper 13
Railway ballast 11 is delivered to, then track ground 10 is passed to by railway ballast 11.Particle damping energy dissipation vibration damping railway ballast pad 1 is placed on the He of railway ballast 11
Between track ground 10, vibrational energy is consumed by its internal particle damping energy dissipation element 3.On the Vibration propagation road of track
Increase particle damping energy dissipation vibration damping railway ballast pad 1 in footpath equivalent to the structural damping for changing original track structure, by changing structure
Energy possessed by can effectively dissipating vibration is damped, plays a part of vibration damping and vibration isolation power consumption.
The advantageous effects of the present embodiment are：Track structure can not only be reduced using the railway ballast pad of particle damping
Original rigidity, but also dissipation energy can be played a part of by increasing structural damping, it is effectively improved railway ballast pad
Damping vibration-isolating effect.
Claims (9)
1. a kind of particle damping energy dissipation vibration damping railway ballast pad, is arranged between railway ballast and track ground, it is characterised in that：The particle
Damping energy dissipation vibration damping railway ballast pad includes rubber slab and the particle damping energy dissipation element and steel that are embedded in inside the rubber slab
Silk；The upper surface of the rubber slab is provided with reserved cementation zone.
A kind of 2. particle damping energy dissipation vibration damping railway ballast pad according to claim 1, it is characterised in that：The particle damping consumption
Energy element includes housing, and the enclosure interior is provided with damping particles.
A kind of 3. particle damping energy dissipation vibration reducing track plate according to claim 2, it is characterised in that：The housing is six faces
Body, its length of side is between 1 ~ 2cm.
A kind of 4. particle damping energy dissipation vibration reducing track plate according to claim 2, it is characterised in that：The damping particles
Material is the combination of any one or more in tungsten powder, lead powder, copper powder and iron powder；The particle diameter of the damping particles is
0.001~0.5mm；The filling rate of damping particles is between 50 ~ 90% described in the enclosure interior.
A kind of 5. particle damping energy dissipation vibration damping railway ballast pad according to claim 1, it is characterised in that：The rubber slab into
Dividing includes natural rubber, phenolic resin and hard carbon black.
A kind of 6. particle damping energy dissipation vibration damping railway ballast pad according to claim 1, it is characterised in that：The rubber slab includes
Top supporting course and bottom mixed layer；The particle damping energy dissipation element and the steel wire are embedded in the bottom mixed layer
In.
A kind of 7. particle damping energy dissipation vibration damping railway ballast pad according to claim 1, it is characterised in that：The particle damping consumption
Energy element is arranged inside the rubber slab using monolayer array；The lower surface of the particle damping energy dissipation element and the rubber
The distance between lower surface of plate is more than 1cm；The upper surface of the particle damping energy dissipation element and the upper surface of the rubber slab
The distance between be more than 2cm；Spacing between the adjacent particle damping energy dissipation element is 2 ~ 4cm.
A kind of 8. particle damping energy dissipation vibration damping railway ballast pad according to claim 1, it is characterised in that：The steel wire encircling institute
Particle damping energy dissipation element is stated, the distance between the steel wire and the particle damping energy dissipation element are 0.5 ~ 1cm.
A kind of 9. particle damping energy dissipation vibration damping railway ballast pad according to claim 1, it is characterised in that：The reserved cementation zone
It is arranged on the both sides of the upper surface of the rubber slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710656270.1A CN107366200B (en) | 2017-08-03 | 2017-08-03 | Particle damping energy-dissipation vibration reduction ballast pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710656270.1A CN107366200B (en) | 2017-08-03 | 2017-08-03 | Particle damping energy-dissipation vibration reduction ballast pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107366200A true CN107366200A (en) | 2017-11-21 |
| CN107366200B CN107366200B (en) | 2023-08-15 |
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ID=60309164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710656270.1A Active CN107366200B (en) | 2017-08-03 | 2017-08-03 | Particle damping energy-dissipation vibration reduction ballast pad |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211037A (en) * | 2020-09-03 | 2021-01-12 | 中铁第一勘察设计院集团有限公司 | Ballast track with adjustable rigid foundation and sleeper thereof |
| CN114214877A (en) * | 2021-11-26 | 2022-03-22 | 中铁一局集团有限公司 | High-speed railway track bed construction method |
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| CN203977239U (en) * | 2014-07-14 | 2014-12-03 | 浙江省三门县西陈橡胶厂 | A kind of antifreeze railway ballast cushion blocking for rail |
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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 |
| CN106553397A (en) * | 2016-12-05 | 2017-04-05 | 吉林大学 | A kind of fiber/metal-layer structure composite and preparation method thereof |
| CN206129963U (en) * | 2016-09-26 | 2017-04-26 | 山东农业大学 | Solid -liquid composite grain attenuator device |
| CN207419165U (en) * | 2017-08-03 | 2018-05-29 | 华东交通大学 | A kind of particle damping energy dissipation vibration damping railway ballast pad |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211037A (en) * | 2020-09-03 | 2021-01-12 | 中铁第一勘察设计院集团有限公司 | Ballast track with adjustable rigid foundation and sleeper thereof |
| CN114214877A (en) * | 2021-11-26 | 2022-03-22 | 中铁一局集团有限公司 | High-speed railway track bed construction method |
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| Publication number | Publication date |
|---|---|
| CN107366200B (en) | 2023-08-15 |
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Inventor after: Feng Qingsong Inventor after: Li Wenbin Inventor after: Zhang Ling Inventor after: Luo Gun Inventor after: Lei Xiaoyan Inventor before: Feng Qingsong Inventor before: Li Wenbin Inventor before: Luo Gun Inventor before: Lei Xiaoyan |
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