铁道标准设计2016，Vol.60Issue(6)：5-8,9,5.DOI:10.13238/j.issn.1004-2954.2016.06.002
道床板长度对减振垫轨道结构振动性能影响分析
Analysis of Track Slab Length Impact on Vibration Performance of Damping Track Structure
付琪璋1
作者信息
- 1. 中铁第一勘察设计院集团有限公司，西安 710043
- 折叠
摘要
Abstract
The railway track with rubber vibration-damping pad is a new type of vibration damping track. However, the selection of the track slab length is not specified in engineering practices. Two methods of modal analysis and harmonic response analysis are applied to analyze the natural frequency, vibration mode and transfer functions of track slabs of different lengths. Research results show that:(1) the length of the unit slab has significant influences on the vibration frequency of vertical bending and torsion;(2) spectrum amplitude of unit slab appears in the transverse bending frequency of the first order at the lengths of 2. 5,3. 75m and when it is greater than or equal to 5m, it appears near the corresponding frequency of the floating vibration mode; ( 3 ) the spectrum amplitude of curves is greatly reduced with increase in length of the unit track slab; ( 4 ) the spectrum amplitude varies a little with the change of unit length where the length of the unit track structure is 5m or over.关键词
轨道结构/道床板/振动/固有频率/传递函数Key words
Track structure/Track slab/Vibration/Natural frequency/Transfer function分类
交通工程引用本文复制引用
付琪璋..道床板长度对减振垫轨道结构振动性能影响分析[J].铁道标准设计,2016,60(6):5-8,9,5.
