A critical review of wheel/rail high frequency vibration-induced vibration fatigue of railway bogie in China

Xingwen Wu, Zhenxian Zhang, Wubin Cai, Ningrui Yang, Xuesong Jin, Ping Wang, Zefeng Wen, M. Chi, Shulin Liang, Yunhua Huang
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Abstract

PurposeThis review aims to give a critical view of the wheel/rail high frequency vibration-induced vibration fatigue in railway bogie.Design/methodology/approachVibration fatigue of railway bogie arising from the wheel/rail high frequency vibration has become the main concern of railway operators. Previous reviews usually focused on the formation mechanism of wheel/rail high frequency vibration. This paper thus gives a critical review of the vibration fatigue of railway bogie owing to the short-pitch irregularities-induced high frequency vibration, including a brief introduction of short-pitch irregularities, associated high frequency vibration in railway bogie, typical vibration fatigue failure cases of railway bogie and methodologies used for the assessment of vibration fatigue and research gaps.FindingsThe results showed that the resulting excitation frequencies of short-pitch irregularity vary substantially due to different track types and formation mechanisms. The axle box-mounted components are much more vulnerable to vibration fatigue compared with other components. The wheel polygonal wear and rail corrugation-induced high frequency vibration is the main driving force of fatigue failure, and the fatigue crack usually initiates from the defect of the weld seam. Vibration spectrum for attachments of railway bogie defined in the standard underestimates the vibration level arising from the short-pitch irregularities. The current investigations on vibration fatigue mainly focus on the methods to improve the accuracy of fatigue damage assessment, and a systematical design method for vibration fatigue remains a huge gap to improve the survival probability when the rail vehicle is subjected to vibration fatigue.Originality/valueThe research can facilitate the development of a new methodology to improve the fatigue life of railway vehicles when subjected to wheel/rail high frequency vibration.
中国铁路转向架轮轨高频振动诱发振动疲劳的重要评述
设计/方法/途径 由车轮/轨道高频振动引起的铁路转向架振动疲劳已成为铁路运营商关注的主要问题。以往的综述通常侧重于轮轨高频振动的形成机理。因此,本文对短节距不规则引起的高频振动导致的铁路转向架振动疲劳进行了深入研究,包括简要介绍短节距不规则、铁路转向架的相关高频振动、典型的铁路转向架振动疲劳失效案例以及用于评估振动疲劳的方法和研究空白。与其他部件相比,安装在轴箱上的部件更容易受到振动疲劳的影响。车轮多边形磨损和轨道波纹引起的高频振动是疲劳失效的主要驱动力,疲劳裂纹通常从焊缝缺陷开始。标准中定义的铁路转向架附件振动频谱低估了短节距不规则所产生的振动水平。目前对振动疲劳的研究主要集中在提高疲劳损伤评估精度的方法上,而针对振动疲劳的系统设计方法对于提高轨道车辆在振动疲劳下的存活概率仍是一个巨大的差距。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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