Investigation into the Vibration of Metro Bogies Induced by Rail Corrugation

作     者：LING Liang LI Wei FOO Elbert WU Lei WEN Zefeng JIN Xuesong 

作者机构：State Key Laboratory of Traction PowerSouthwest Jiaotong UniversityChengdu 610031China College of EngineeringBoston UniversityBoston 02215USA School of Mechanical EngineeringSouthwest Jiaotong UniversityChengdu 610031China 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2017年第30卷第1期

页      面：93-102页

核心收录：

学科分类：08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 080204[工学-车辆工程] 0802[工学-机械工程] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by National Natural Science Foundation of China(Grant Nos.U1361117,51305360) PhD Programs Foundation of Ministry of Education of China(Grant No.20130184110005) Cultivation Program for the Excellent Doctoral Dissertation of Southwest Jiaotong University Guangzhou Metro Corporation Program of China 

主　　题：metro bogie rail corrugation vibration coil spring fatigue failure 

摘      要：The current research of rail corrugation mainly focuses on the mechanisms of its formation and development. Compared with the root causes and development mechanisms, the wheel-rail impacts, the fatigue failure of vehicle-track parts, and the loss of ride comfort due to rail corrugation should also be taken into account. However, the influences of rail corrugation on vehicle and track vibration, and failure of vehicle and track structural parts are barely discussed in the literature. This paper presents an experimental and numerical investigation of the structural vibration of metro bogies caused by rail corrugation. Extensive experiments are conducted to investigate the effects of short-pitch rail corrugation on the vibration accelerations of metro bogies. A dynamic model of a metro vehicle coupled with a concrete track is established to study the influence of rail corrugation on the structural vibration of metro bogies. The field test results indicate that the short-pitch rail corrugation generates strong vibrations on the axle-boxes and the bogie frames, therefore, accelerates the fatigue failure of the bogie components. The numerical results show that short-pitch rail corrugation may largely reduce the fatigue life of the coil spring, and improving the damping value of the primary vertical dampers is likely to reduce the strong vibration induced by short-pitch rail corrugation. This research systematically studies the effect of rail corrugation on the vibration of metro bogies and proposes some remedies for mitigating strong vibrations of metro bogies and reducing the incidence of failure in primary coil springs, which would be helpful in developing new metro bogies and track maintenance procedures.