Constraint damping rail with phi-type expanded layer

A technology of restraining damping and expanding layers, applied in the field of damping rails, can solve problems such as adverse effects on physical and mental health, reduce passenger comfort and stability, and achieve the effect of improving the effect of vibration reduction and noise reduction, and strengthening the shear effect.

Active Publication Date: 2019-01-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The huge vibration and noise generated in the operation of rail transit will adversely affect the physical and mental health of residents along the line, causing them to suffer from anxiety, insomnia and other diseases; at the same time, the vibration and noise will spread to the train compartment, which will also reduce the comfort of passengers sex and stability

Method used

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  • Constraint damping rail with phi-type expanded layer
  • Constraint damping rail with phi-type expanded layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a belt Type expansion layer constrained damping rails, such as figure 1 As shown, including rail body 1, Type expansion layer 2, constraint layer 4 and damping filling layer 3, where:

[0026] The type expansion layer 2 consists of an expansion layer base layer 21 pasted on the non-working surface at the rail waist and rail top of the rail body 1 and a plurality of expansion layer base layers 21 extending outward from the expansion layer base layer 21. Type expansion slot 22;

[0027] Constraint Layer 4 consists of a set of The constrained layer outer layer 41 on the periphery of the type expansion layer 2, a plurality of long T-shaped structural members 42 extending from the constrained layer outer layer 41 to the rail waist, and multiple sets of double short transverse plate structural members 43, each set of double short transverse plate 43 and Type expansion slots 22 are matched and extended into In the type expansion slot 22, the long T-shaped structu...

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PUM

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Abstract

The invention relates to a constraint damping rail with a phi-type expansion layer. The rail includes a rail body, the phi-type expansion layer, a constraint layer and a damping fill layer, wherein phi-type expansion layer is composed of expansion layer base layer attached to rail waist and non-working surface at rail top of rail body and a plurality of extension layers extending from the expansion layer base layer; the constraint layer includes an outer layer of the constraint layer disposed at the periphery of the phi-type expansion layer, a plurality of long T-shaped structures extending from the outer layer of the constraint layer toward the rail waist, and a plurality of groups of double-short horizontal plate structure, the double-short horizontal plates of each group are matched with phi-type expansion slots and protrude into expansion slot, long T-shaped structural members are staggered with phi-shaped expansion slots; the damping fill layer fills the voids between the phi-typeexpansion layer and the constraint layer. Compared with the prior art, the invention increases the shear area of the damping layer parallel to the longitudinal tangent plane of the rail, enhances theshear effect of the damping layer by utilizing the vertical deformation of the rail as a whole, and further improves the vibration and noise reduction effect of the damping layer.

Description

technical field [0001] The invention relates to a damping rail, in particular to a belt that can effectively reduce the vibration noise of the rail. Type-expanded layer-constrained damped rails. Background technique [0002] In recent years, with the increase of the density of the rail transit network, more and more rail transit lines pass through areas where populations gather. The huge vibration and noise generated in the operation of rail transit will adversely affect the physical and mental health of residents along the line, causing them to suffer from anxiety, insomnia and other diseases; at the same time, the vibration and noise will spread to the train compartment, which will also reduce the comfort of passengers sex and stability. Therefore, it will be a long-term and important task in the construction of rail transit to take effective measures to properly solve the problem of rail transit vibration and noise pollution. [0003] Wheel-rail vibration noise is one...

Claims

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Application Information

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IPC IPC(8): E01B5/08E01B19/00
CPCE01B5/08E01B19/003
Inventor 崔日新周劲松宫岛孙文静夏张辉
Owner TONGJI UNIV
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