Wheel/rail wear is one of the key issues in the safe operation of a high-speed railway motor car. This paper analyzes and predicts the wheel wear evolution of motor car during the long-term operation process. Firstly, the detailed motor car with gear transmission systems and trailer car of the high-speed train, which take into account various non-linear factors such as dampers, bump stops, wheel/rail contact relation, etc., are developed to obtain interaction force between wheel and rail. Secondly, according to the tread update strategy based on fixed travel distance, a novel wheel wear prediction model integrating the Archard wear model and previous dynamics system is established. In order to more accurately obtain the dynamic responses of the motor car, the comprehensive gear transmission system coupling with motor bogie is also built, which considers the time-varying mesh stiffness and gear shift coefficient. And the corresponding traction characteristic curve is also applied to the gear transmission system. Finally, the wheel wear evolution in one re-profiling cycle is simulated to verify the developed model, and the wheel wear mechanism is investigated in detail. Furthermore, the influence of traction velocity on wheel wear is also investigated. The simulation shows that the cumulative wear amount of both two cars increases gradually and the wear rate decreases gradually with traveling mileage, but the wear rate of the trailer car decreases faster than that of the motor car due to larger longitudinal creepage and longitudinal creep force induced by traction torque. Moreover, the max wheel wear depth and wear bandwidth for motor car gradually increase with traction velocity. While the discrepancies of the max wheel wear depth and wear bandwidth for trailer car are small under different speeds.

轮轨磨损是高速铁路动车安全运行的关键问题之一。本文分析并预测了汽车在长期运行过程中的车轮磨损演变。首先，考虑到阻尼器、缓冲块、轮轨接触关系等各种非线性因素，开发了高速列车齿轮传动系统的详细动车和挂车，以获得交互作用。车轮和钢轨之间的力。其次，根据基于固定行驶距离的胎面更新策略，建立了一种将Archard磨损模型与以往动力学系统相结合的新型车轮磨损预测模型。为了更准确地获取动车的动态响应，还构建了与转向架耦合的综合齿轮传动系统，其中考虑了时变啮合刚度和换档系数。相应的牵引特性曲线也应用于齿轮传动系统。最后，模拟了一个重新成型循环中的车轮磨损演变，以验证所开发的模型，并详细研究了车轮磨损机制。此外，还研究了牵引速度对车轮磨损的影响。仿真结果表明，随着行驶里程的增加，两辆汽车的累计磨损量逐渐增加，磨损率逐渐降低，但挂车的磨损率下降速度快于动车，原因是纵向爬电和引起的纵向爬行力较大。通过牵引扭矩。此外，汽车的最大车轮磨损深度和磨损带宽随着牵引速度的增加而逐渐增加。