北京交通大学学报2017，Vol.41Issue(4)：77-84,90,9.DOI:10.11860/j.issn.1673-0291.2017.04.011
城市轨道交通钢轨波浪形磨耗检测仿真研究
Detection technique research of rail corrugation in urban rail transit
摘要
Abstract
Urbon rail traffic corrugation increases the maintenance costs,makes passengers uncomfortable and makes noise.It may even endanger the safety of vehicles.This paper provides a new detection method of corrugations which based on the operating vehicles.An operating vehicle-track dynamic model is built to extract the signature tunes of corrugation based on the multi-body dynamics software SIMPACK.Then all the profiles which have been simulated are introduced into the vehicle-track dynamic model to obtain bogie acceleration data based on defects.In this paper,the time domain analysis,frequency domain analysis,wavelet analysis and Hilbert-Huang transform(HHT) are used to analyze bogie acceleration data and extract the frequency features of the detection signal.The simulation results show that feature frequencies obtained from the continuous wavelets analysis and feature modes derived from the empirical mode decomposition(EMD) can be used for track defects diagnosis.The feasibility and reliability of the method of detecting the corrugation damages based on the operating vehicles is validated.关键词
波浪形磨耗/SIMPACK/时、频域分析/小波分析/希尔伯特黄变换Key words
corrugation/SIMPACK/time and domain analysis/wavelet packet/Hilbert-Huang transform分类
交通工程引用本文复制引用
翟国锐,贺延芳,魏秀琨..城市轨道交通钢轨波浪形磨耗检测仿真研究[J].北京交通大学学报,2017,41(4):77-84,90,9.基金项目
国家科技支撑计划(2015BAG13B00)National Key Technology Research and Development Program of China(2015BAG13B00) （2015BAG13B00）
