基于ANSYS的滑动摩擦热结构耦合分析

利用ANSYS有限元软件分析了在摩擦热和力场的耦合作用下，材料摩擦表面滑动接触区的局部温度变化、应力变化等特性．结果表明：在摩擦滑移过程中，磨损表面相当于接受固定热源作用，接触区温度逐渐上升，温度存在起伏波动现象，温度最高点在接触面中线区域，温度从接触面向四周呈递减趋势，而且温度梯度越来越小；同时，接触应力、摩擦应力也发生变化．滑动过程的热效应问题研究将有助于揭示接触过程中材料表面磨损机理．

Study on the thermal-structural couple field of sliding friction process based on ANSYS

In this paper, the characters of temperature, contact pressure in contact area under the couple effect of friction heating and force during surface sliding friction process were studied by ANSYS. It is shown that in the surface sliding friction process, the contact surface is similar to get steady heat resource,and the temperature of contact surface rises step by step according to the sliding time; the temperature first rise in the contact surface,then spread to the worksheet where maximum temperature surround the contact surface, and the temperature gradient decrease along the worksheet so that the temperature decrease accordingly. This research on heating analysis of surface sliding friction process will be helpful to expose the mechanism of the surface damage.