Effects of wheel–rail contact modelling on wheel wear simulation
Effects of wheel–rail contact modelling on wheel wear simulation
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DOI：
10.1016/j.wear.2016.05.010
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发表时间：
2016-11
期刊：
影响因子：
5
通讯作者：
G. Tao;Z. Wen;Xin Zhao;Xue-song Jin
中科院分区：
文献类型：
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作者：
G. Tao;Z. Wen;Xin Zhao;Xue-song Jin
三个非椭圆接触模型，即Kik-Piotrowski方法，STRIPES和ANALYN，第一次比较赫兹理论和接触程序的正常接触解决方案。此外，对于接触模型，除了接触，切向接触的解决方案是由一个修改的简化理论的Kalker（FASTSIM）的基础上正常的计算比较。随后，开发了由铁路车辆多体动力学模型、轮轨接触模型和谢菲尔德大学开发的磨损函数组成的车轮磨损预测模型。从计算效率和精度的角度研究了上述五种接触模型对车轮磨损预测的影响。结果表明，在轮对磨损模拟中，采用Hertz理论和FASTSIM分别求解法向和切向接触问题是一种较好的选择，可以兼顾计算效率和精度。
Three non-elliptic contact models, namely Kik–Piotrowski method, STRIPES and ANALYN, are first compared to the Hertz theory and the CONTACT code in terms of the normal contact solution. Further, for the contact models except for CONTACT, the tangential contact solutions are calculated by a modified simplified theory of Kalker (FASTSIM) based on the normal ones to compare with that of CONTACT. Afterwards, a wheel wear prediction model, consisting of a multi-body dynamic model of the railway vehicle, a wheel–rail contact model and a wear function developed by the University of Sheffield, is developed. The influences of the five contact models mentioned above on the wheel wear prediction are investigated from viewpoints of calculation efficiency and accuracy. The results indicate that using Hertz theory and FASTSIM to solve the normal and tangential contact problem, respectively, in the wheel wear simulation is a good choice in order to consider a compromise between the calculation efficiency and accuracy.