Study on the influence of friction coefficient on the wheel-rail contact and rolling contact fatigue for the low-floor vehicle

作     者：Li, Xue Wang, Yuexin Wang, Kaiyun Pu, Gao 

作者机构：School of Mechanical Engineering Lanzhou Jiaotong University Lanzhou730070 China State Key Laboratory of Rail Transit Vehicle System Southwest Jiaotong University Chengdu610031 China Chengdu Metro Operation Company Chengdu610074 China 

出 版 物：《International Journal of Vehicle Systems Modelling and Testing》 (Int. J. Veh. Syst. Model. Test.)

年 卷 期：2025年第19卷第1期

页      面：74-89页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 0823[工学-交通运输工程] 

基　　金：This research was supported by the National Natural Science Foundation of China (61863021)  and the Special Funds for Guiding Local Scientific and Technological Development by the Central Government (22ZY1QA005) 

主　　题：Friction 

摘      要：The wheel-rail friction coefficient (FC) is one of the critical parameters in the wheel-rail contact. This study focuses on the wheel-rail contact and rolling contact fatigue for the low-floor vehicle under the different FC. Firstly, the dynamic model of the low-floor vehicle is developed. Then, the area of contact patch, tangential stress, creep force, and normal force as the important indicators are investigated. Finally, based on the Shakedown Diagram and Dang-Van criterion, the rolling contact fatigue of traditional wheelset (TW) and independently rotating wheel (IRW) is studied. The results show that the superficial fatigue index of TW is always lower than that of IRW as the radius of the curve increases. The accumulated fatigue damage is more severe in the FC range of 0.15–0.25, where the accumulated fatigue damage of TW and IRW is increased by 0.0158 and 0.0311, respectively. Copyright © 2025 Inderscience Enterprises Ltd.