Vibration absorbing track with pretensioned elastic structure

An elastic structure and track technology, applied in the field of track vibration reduction, can solve the problems of poor stability of sleepers or ballast beds, increased noise, low stiffness, etc., and achieve the effects of reducing corrugation, improving position, and simple structure

Pending Publication Date: 2019-01-18
LANZHOU JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the existing sleeper type or ballast bed type damping track that exists in the prior art, and an elastic layer or an elastic support point is arranged under the sleeper or ballast bed, but in order to improve the vibration damping effect of the damping track, the elastic layer Or the stiffness of elastic support points is generally low, resulting in poor stability of sleepers or ballast beds, causing increased vibration and noise during vehicle operation, and the above-mentioned deficiencies such as corrugation and other diseases generally appear in local areas. Structural damping track

Method used

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  • Vibration absorbing track with pretensioned elastic structure
  • Vibration absorbing track with pretensioned elastic structure
  • Vibration absorbing track with pretensioned elastic structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as Figure 1-4 As shown, a vibration-damping track with a pre-tensioned elastic structure according to the present invention adopts a short pillow type vibration-damped track, including a mass system 1 and a pre-tensioned elastic structure 4 .

[0058] The bottom 11 and the side 12 of the mass system 1 are connected with an elastic damping structure 2, the elastic damping structure 2 is connected to the corresponding base structure 3 of the mass system 1, and the top 14 of the mass system 1 is connected to The pre-tightening elastic structure 4 is connected to the base structure 3 corresponding to the mass system 1; wherein, the mass system 1 is a sleeper, and the corresponding base structure 3 is a ballast bed.

[0059] As a preferred solution of this embodiment, the track bed is a concrete integral track bed; the damping track also includes a damping structure, the top 14 of the mass system 1 is connected to the damping structure, and the damping structure is con...

Embodiment 2

[0062] Such as Figure 5-8 As shown, a damping track with a pre-tightened elastic structure according to the present invention adopts an elastic track mattress damping track, includes a mass system 1 , and also includes a pre-tightened elastic structure 4 .

[0063] The bottom 11 of the mass system 1 is connected to an elastic damping structure 2, the elastic damping structure 2 is connected to the corresponding base structure 3 of the mass system 1, and the top 14 of the mass system 1 is connected to the preloaded The elastic structure 4, the pre-tightened elastic structure 4 is connected to the base structure 3 corresponding to the mass system 1; wherein, the mass system 1 is a ballast bed, and the corresponding base structure 3 is a track foundation.

[0064] As a preferred solution of this embodiment, the track foundation is a concrete track foundation; the damping track also includes a damping structure, the top 14 of the mass system 1 is connected to the damping structur...

Embodiment 3

[0067] Such as Figure 9-12 As shown, a vibration-damping track with a pre-tensioned elastic structure described in the present invention adopts a trapezoidal sleeper vibration-damped track, includes a mass system 1 , and also includes a pre-tensioned elastic structure 4 .

[0068] The bottom 11 of the mass system 1 is connected to an elastic damping structure 2, the elastic damping structure 2 is connected to the corresponding base structure 3 of the mass system 1, and the top 14 of the mass system 1 is connected to the preloaded The elastic structure 4, the pre-tightened elastic structure 4 is connected to the base structure 3 corresponding to the mass system 1; wherein, the mass system 1 is a ballast bed, and the corresponding base structure 3 is a track foundation.

[0069] As a preferred solution of this embodiment, the track foundation is a concrete track foundation; the damping track also includes a damping structure, the top 14 of the mass system 1 is connected to the ...

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Abstract

The invention discloses a vibration absorbing track with a pretensioned elastic structure, which comprises a quality system. A pretensioned elastic structure is also included, The bottom and/or the side of the mass system is connected with an elastic vibration damping structure, the elastic vibration damping structure is connected with the corresponding infrastructure of the mass system, the end and/or the top of the mass system is connected with the pretensioned elastic structure, and the pretensioned elastic structure is connected with the corresponding infrastructure of the mass system. Using the vibration-absorbing track with the pre-compact elastic structure of the invention, By setting the pre-compact elastic structure to adjust the equilibrium point of the mass system and the elastic damping structure system to the direction of increasing the displacement of the mass system, so as to improve the position of the equilibrium point of the mass system and the elastic vibration damping structure system, adjust the natural frequency of the track system, improve the stability of the vibration damping track, reduce the vibration and noise, reduce the occurrence of diseases such as wave milling, etc. The vibration damping track with the pre-compact elastic structure is simple in structure, convenient in use and easy to popularize.

Description

technical field [0001] The invention relates to the field of rail vibration reduction, in particular to a vibration-damping rail with a pre-tightened elastic structure. Background technique [0002] The existing rail transit sleeper type or ballast bed type vibration damping track is to set an elastic layer or elastic support point under the sleeper or ballast bed to provide elasticity and damping for the vibration damping track; in order to improve the vibration damping effect of the vibration damping track, the elastic layer or elastic support The stiffness of the points is generally low, resulting in poor stability of sleepers or ballast beds, causing increased vibration and noise during vehicle operation, and corrugation and other diseases are common in local areas. Contents of the invention [0003] The purpose of the present invention is to overcome the existing sleeper type or ballast bed type vibration damping track existing in the prior art is to arrange elastic l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B3/00E01B19/00
CPCE01B3/00E01B19/00
Inventor 和振兴石广田翟婉明张小安包能能王淑珍
Owner LANZHOU JIAOTONG UNIV
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