中国铁道科学2017，Vol.38Issue(6)：118-124,7.DOI:10.3969/j.issn.1001-4632.2017.06.16
高速动车组横向悬挂系统失效故障的诊断方法
Fault Diagnosis Method for Lateral Suspension System of High Speed EMU
摘要
Abstract
The existing method based on Kalman filter technique for fault diagnosis cannot effectively diagnose the failure problems of the lateral suspension system for high speed EMU.The dynamics simulation model of the lateral suspension system for high speed EMU is established to analyze fault characteristics.The study shows that the anti-hunting damper fault is sensitive to the lateral vibration acceleration signal of bogie in the frequency range of 0～10 Hz,and the secondary lateral damper fault is sensitive to the lateral vibration acceleration signal of carbody in the frequency range of 0～2 Hz.Based on the above analysis,an improved fault diagnosis method based on Kalman filtering technique is put forward to diagnose the failure of the lateral suspension system for high speed EMU.With the improved method,the lateral vibration acceleration signals of the bogie and carbody are first filtered in the frequency ranges of 0～10 Hz and 0～2 Hz respectively.Then the feature index of comprehensive weighed sum squared residual (WSSR) is calculated.If the WSSR becomes much higher,it indicates that the failure of the lateral suspension system for high speed EMU occurs.Simulation results show that at the running speed of 300 km · h-1,the improved method can effectively diagnose the failure of anti-hunting damper and the secondary lateral damper in the lateral suspension system for high speed EMU.关键词
kalman滤波器/车辆动力学模型/高速动车组/横向悬挂系统/故障诊断/横向减振器/抗蛇行减振器Key words
Kalman filter/Vehicle dynamics model/High speed EMU/Lateral suspension system/Fault diagnosis/Lateral damper/Anti-hunting damper分类
交通工程引用本文复制引用
胡晓依..高速动车组横向悬挂系统失效故障的诊断方法[J].中国铁道科学,2017,38(6):118-124,7.基金项目
中国铁路总公司科技研究开发计划项目(SY2016G002,J2017G011-C) （SY2016G002,J2017G011-C）
