噪声与振动控制2019，Vol.39Issue(4)：125-129,5.DOI:10.3969/j.issn.1006-1355.2019.04.023
基于小波分析的铁路车辆轮对纵向非稳态振动研究
Study on Railway Wheelset Longitudinal Non-stationary Vibration based on Wavelet Analysis
陶伟文 1刘韦 1罗跟东 2卜继玲 1刘振光1
作者信息
- 1. 株洲时代新材料科技股份有限公司,湖南 株洲 412007
- 2. 无锡地铁集团有限公司,江苏 无锡 214023
- 折叠
摘要
Abstract
Based on the wavelet analysis, the problem of railway wheelset non-stationary vibration is studied. Fourier transform, discrete wavelet transform and continuous wavelet transform methods are adopted to study the longitudinal vibration characteristics of the wheelset under the conditions of primary suspension longitudinal stiffness mutating and vehicle’s running at variable speeds. The results show that using Fourier transform is unable to analyze wheelset non-stationary vibration problems. While using wavelet analysis method can easily extracted the characteristics of wheelset non-stationary vibration signals when the primary suspension longitudinal stiffness is mutating and the vehicle is running at a variable speeds.关键词
振动与波/时频分析/小波分析/轮对纵向非稳态振动/时变参数/变速运动Key words
vibration and wave/ time-frequency analysis/ wavelet analysis/ wheelset longitudinal non-stationary vibration/ time-varing parameters/ non-uniform motion分类
数理科学引用本文复制引用
陶伟文,刘韦,罗跟东,卜继玲,刘振光..基于小波分析的铁路车辆轮对纵向非稳态振动研究[J].噪声与振动控制,2019,39(4):125-129,5.
