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推导了基于平均流动模型的广义Reynolds方程.这一方程综合体现了Dowson的广义Reynolds方程以及Patir等人提出的平均Reynolds方程的主要特点,可应用于计人表面粗糙度效应的热流体动力润滑分析.给出了压力流量因子和剪切流量因子的确定方法,并提出运用所推导的方程进行热流体动力润滑分析的求解思路.“,”A generalized Reynolds equation based on the average flow model is derived. This equation has the advantages of Dowson s generalized Reynolds equation and Patir s average Reynolds equation. It can be applied for thermalhydrodynamic analysis including the effect of surface roughness. The method for determining pressure flow factor and shear flow factor is given. The approach is put forward for thermalhydrodynamic analysis based on the new equation.