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中文摘要：
随着铁路的高速化和重载化，车辆运行环境日益恶化，破坏的程度也越严重。针对机车特定轮重、相对滑动速度、摩擦系数的工况，应用有限元分析软件ANSYS对钢轨瞬态温度场作了计算研究，并利用其中的参数化设计语言（APDL）实现了移动载荷的加载。结果表明钢轨轨表面温度随摩擦系数和相对滑动速度的增加而增大，最高温升与摩擦系数和相对滑动速度呈线性关系。
英文摘要：
With the development of high speed and heavy haul, the railway environment for operation of rolling stocks is becoming bad and worse. In this paper, the instantaneous temperature field of the rail is analyzed by the finite element analysis （FEA） software ANSYS on the basis of specified wheel load, relative slipping velocity and friction coefficient of the locomotives. Successfully loading moving load by the ANSYS Parametric Design Language （APDL）. The results show that the wheel/rail surface temperature increase with increasing the friction coefficient and the relative sliding velocity, and the maximum temperature rise is linear with the friction coefficient and relative sliding velocity. Temperature field data provide a basis for the optimal design of rail.
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