The lubrication of cylinder-piston pair was simulated with an average Reynolds equation considering the second-vibration of the piston and the asperity contact of rough surface.

• 缸体结构振动响应用有限元法来计算，缸套和活塞间的流体润滑计算通过有限差分法求解平均雷诺方程进行，其中考虑了微凸体接触的作用。