摘要
基于实验室获得的CL60车轮材料Tγ/A-磨损率曲线建立车轮踏面磨损模型,通过Simpack软件建立C80货车模型进行车辆轨道动力学仿真,利用Tγ/A-磨损率车轮踏面磨损模型对车轮踏面的磨耗规律进行仿真分析。结果表明:25 t轴重、600 m曲线半径工况下,同一转向架的前轮对较后轮对磨耗严重,同时与内轨处车轮相比,外轨处车轮磨耗较为严重;由于Tγ/A-磨损率曲线中磨损率输入取值的连续性,相同工况使用该模型获得的仿真结果比采用Archard磨损系数仿真得到的结果要小,其结果具有更好的精度。基于Tγ/A-磨损率的车轮踏面磨损模型为未来复杂服役环境下的车轮踏面磨耗预测提供了重要的方法。
The model of wheel material wear is built based on the Tγ/A-wear rate curve of CL60 wheel from laboratory. The simulation of vehicle-track dynamics of C80 freight car＇s model built by SIMPACK software is performed. And the law of wheel wear is analyzed by the model of material wear based on the Tγ/A-wear rate. The numerical results under the working condition of 25 tons axle load and wheel passing through 600 m curve shows that the wear of the leading wheelset is severer than that of the trailing wheelset in same bogie. Compared with inner rail wheels, the outer rail wheels shows serious wear. The wear value computed by Tγ/A-wear rate curve is smaller and more precise compared with the model calculated by Archard wear index owing to the fact that the input parameter values of the Tγ/A-wear rate curve is continuous. The model of wheel tread wear based on the Tγ/A-wear rate provides important methods to wear prediction of wheel tread under the complex service conditions in future.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2017年第22期101-108,共8页
Journal of Mechanical Engineering
基金
国家自然科学基金(51475393
51275430)
国家高技术研究发展计划(863计划
2015AA031202)资助项目
