CN103422403B - A kind of across low-and high-frequency broadband plate type dynamic vibration absorber - Google Patents
A kind of across low-and high-frequency broadband plate type dynamic vibration absorber Download PDFInfo
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- CN103422403B CN103422403B CN201310329457.2A CN201310329457A CN103422403B CN 103422403 B CN103422403 B CN 103422403B CN 201310329457 A CN201310329457 A CN 201310329457A CN 103422403 B CN103422403 B CN 103422403B
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- damping
- amortisseur
- bump leveller
- multiple constraint
- low frequency
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Abstract
The present invention relates to a kind of across low-and high-frequency broadband plate type dynamic vibration absorber, described absorbing damping unit has middle low frequency bump leveller (300) and four multiple constraint amortisseur bars; Amortisseur bar is made up of restraint layer 100, damping layer (200), the directed wing plate (110) of the upper vertically-arranged of restraint layer (100); Amortisseur bar is the thin wedge structure in thick end, middle part by center to outer end; Four multiple constraint amortisseur bars are connected with middle low frequency bump leveller (300) crisscross; Multiple constraint amortisseur bar is dissymmetrical structure, that is: the setting direction difference 90 degree of the directed wing plate of two adjacent damping-constraining bars.Middle low frequency bump leveller is made up of rigid mass plate (310), spring (320) and damping mechanism.The present invention effectively can suppress the vibration of the track plates on bridge floor, alleviates the various diseases caused by vibration of reinforcing bar in track and track plates, and has easy installation and removal, the advantage that maintenance operating cost is low.
Description
Technical field
The invention belongs to railway track technical field, particularly relate to viaduct fragment-free track slab absorbing damping capacity control technology field.
Background technology
Fragment-free track slab track on bridge, due to the supporting condition that it is special, its strong vibration not only causes ambient vibration along the line, destroys larger to fragment-free track slab simultaneously.At present, bridge vibration damping is generally install isolation spring under track plates, as Chinese patent application CN1236144C, as shown in Figure 5.In Fig. 5,11 is track plates, and 12 is fastener system, and 13 is isolation spring.It is undesirable to there is vibration isolation in this kind of vibration reducing measure, and the track plates life-span is short, the shortcoming that maintenance cost is high.
Summary of the invention
In view of the above shortcoming of prior art, the object of this invention is to provide a kind of across low-and high-frequency broadband plate type dynamic vibration absorber, make it the above deficiency overcoming prior art, especially improve and be arranged on fragment-free track slab on bridge floor and get on the right track the absorbing damping capacity of plate.
The means realizing the object of the invention employing are:
A kind of across low-and high-frequency broadband plate type dynamic vibration absorber, be arranged on absorbing damping capacity fragment-free track slab increasing bridge floor track plates, be arranged in parallel two damping shock absorption unit between two one steel rails of every block fragment-free track slab; Described absorbing damping unit has middle low frequency bump leveller 300 and four multiple constraint amortisseur bars; Amortisseur bar is made up of restraint layer 100, damping layer 200, the directed wing plate 110 of vertically-arranged on restraint layer 100; Amortisseur bar is the thin wedge structure in thick end, middle part by center to outer end; Four multiple constraint amortisseur bars are connected with middle low frequency bump leveller (300) crisscross; Multiple constraint amortisseur bar is dissymmetrical structure, that is: the setting direction difference 90 degree of the directed wing plate of two adjacent damping-constraining bars; Described middle low frequency bump leveller is made up of rigid mass plate 310, spring 320 and damping mechanism, and four side elevations of rigid mass plate are placed in the damping slot 350 of coaming plate 340 surrounding, are filled with damping fluid 330 in damping slot.Described damping layer 200 adopts high damping elastomeric material to form.
Adopt structure of the present invention, from shape, five subsystems can be divided into again across low-and high-frequency broadband plate type dynamic vibration absorber, namely low frequency bump leveller and four Thursdays a multiple constraint damping system, and these four systems with constraint damping are unsymmetric structure.To be rigidly attached on track plates across low-and high-frequency broadband plate type dynamic vibration absorber, when train is through track, track plates and bridge vibration of beam will be caused, low frequency bump leveller is mainly used to suppress bridge vibration of beam, track plates vibration is by drive four high frequency bump leveller vibrations, because high frequency bump leveller is the close frequency structure of high damping, so the vibration under all resonance frequencies of track plates can be suppressed, and the vibration being passed to bed plate by track plates can be suppressed, thus realize suppressing rail, track plates, bridge and ambient vibration along the line.
Accompanying drawing illustrates:
Fig. 1 is mounting structure schematic diagram of the present invention.
Fig. 2 be in the middle of the present invention low frequency bump leveller and four Thursdays a multiple constraint amortisseur bar formation damping system overall structure outside drawing.
Fig. 3 is the partial sectional view of Fig. 2.
Fig. 4 is the sectional view of middle low frequency bump leveller.
Fig. 5 is prior art schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, structure of the present invention is described in further detail.
Composition graphs 1, Fig. 2 and Fig. 3 can see.The board-like dynamic absorber structure of a kind of symmetric broadband of the present invention, be arranged in parallel two absorbing damping units 1 between two tracks of every block fragment-free track slab 2, wherein adopts between track plates and bump leveller and be rigidly connected.Absorbing damping unit has middle low frequency bump leveller and four multiple constraint amortisseur bars, and each amortisseur bar is made up of restraint layer 100, damping layer 200, restraint layer 100 is provided with directed wing plate 110, and amortisseur bar is the thin wedge structure in thick end, middle part by center to outer end.Four multiple constraint amortisseur bars are connected with middle low frequency bump leveller 300 with being centrosymmetric.Multiple constraint amortisseur bar is dissymmetrical structure, that is: the setting direction difference 90 degree of the directed wing plate of two adjacent damping-constraining bars.Middle low frequency bump leveller is made up of rigid mass plate 310, spring 320 and damping mechanism, and four side elevations of rigid mass plate are placed in the damping slot 350 of coaming plate 340 surrounding, are filled with damping fluid 330 in damping slot.Described damping layer 200 adopts high damping elastomeric material to form.Wing plate can arrange multiple according to concrete condition.
Can be seen by Fig. 4, middle low frequency bump leveller 300 is for having the sandwich of rigid layer 310 and damped elasticity material 320 formation.Damping layer 200 adopts high damping elastomeric material to form.
During actual installation, middle low frequency bump leveller and restraint layer and fragment-free track slab are connected, and the mode that bolt attachment or cement (or other adhesive) can be adopted to bond is connected.
Claims (4)
1. across a low-and high-frequency broadband plate type dynamic vibration absorber, be arranged on absorbing damping capacity fragment-free track slab increasing bridge floor track plates, it is characterized in that, be arranged in parallel two absorbing damping units between two one steel rails of every block fragment-free track slab; Described absorbing damping unit has middle low frequency bump leveller (300) and four multiple constraint amortisseur bars; Multiple constraint amortisseur bar is made up of restraint layer (100), damping layer (200), the directed wing plate (110) of the upper vertically-arranged of restraint layer (100); Multiple constraint amortisseur bar is the thin wedge structure in thick end, middle part by center to outer end; Four multiple constraint amortisseur bars are connected with middle low frequency bump leveller (300) crisscross; Multiple constraint amortisseur bar is dissymmetrical structure, that is: the setting direction difference 90 degree of the directed wing plate of two adjacent damping-constraining bars; Described middle low frequency bump leveller is made up of rigid mass plate (310), spring (320) and damping mechanism, four side elevations of rigid mass plate are placed in the damping slot (350) of coaming plate (340) surrounding, are filled with damping fluid (330) in damping slot; Described damping layer (200) adopts high damping elastomeric material to form.
2. according to claim 1ly it is characterized in that across low-and high-frequency broadband plate type dynamic vibration absorber, described multiple constraint amortisseur bar is the close frequency structure in broadband.
3. according to claim 1ly it is characterized in that across low-and high-frequency broadband plate type dynamic vibration absorber, described middle low frequency bump leveller and restraint layer and fragment-free track slab are connected.
4. according to claim 3ly it is characterized in that across low-and high-frequency broadband plate type dynamic vibration absorber, described middle low frequency bump leveller and restraint layer and fragment-free track slab adopt bolt to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310329457.2A CN103422403B (en) | 2013-07-31 | 2013-07-31 | A kind of across low-and high-frequency broadband plate type dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310329457.2A CN103422403B (en) | 2013-07-31 | 2013-07-31 | A kind of across low-and high-frequency broadband plate type dynamic vibration absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103422403A CN103422403A (en) | 2013-12-04 |
| CN103422403B true CN103422403B (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310329457.2A Expired - Fee Related CN103422403B (en) | 2013-07-31 | 2013-07-31 | A kind of across low-and high-frequency broadband plate type dynamic vibration absorber |
Country Status (1)
| Country | Link |
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| CN (1) | CN103422403B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172744A (en) * | 1984-02-17 | 1985-09-06 | Nissan Motor Co Ltd | Vibrationproof device containing fluid |
| DE3528213A1 (en) * | 1984-08-07 | 1986-02-20 | The Toyo Rubber Industry Co., Ltd., Osaka | SUPPORT DEVICE FOR FLUID DAMPING AND VIBRATION ISOLATION |
| US5845895A (en) * | 1993-09-08 | 1998-12-08 | Kabushiki Kaisha Komatsu Seisakusho | Liquid sealed rubber mount |
| CN201738195U (en) * | 2010-05-17 | 2011-02-09 | 上海轨通减振技术有限公司 | Composite damper spring vibration isolator for floating slab tracks in rail transit |
-
2013
- 2013-07-31 CN CN201310329457.2A patent/CN103422403B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172744A (en) * | 1984-02-17 | 1985-09-06 | Nissan Motor Co Ltd | Vibrationproof device containing fluid |
| DE3528213A1 (en) * | 1984-08-07 | 1986-02-20 | The Toyo Rubber Industry Co., Ltd., Osaka | SUPPORT DEVICE FOR FLUID DAMPING AND VIBRATION ISOLATION |
| US5845895A (en) * | 1993-09-08 | 1998-12-08 | Kabushiki Kaisha Komatsu Seisakusho | Liquid sealed rubber mount |
| CN201738195U (en) * | 2010-05-17 | 2011-02-09 | 上海轨通减振技术有限公司 | Composite damper spring vibration isolator for floating slab tracks in rail transit |
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| CN103422403A (en) | 2013-12-04 |
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Granted publication date: 20150819 Termination date: 20180731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |