中文摘要：

应用多重网格法，求解得到了指数率（Power Law）非牛顿流体在线接触时变变温条件下的弹流润滑数值解。分析了稳态条件下流变指数n对压力、油膜厚度及温度的影响；时变条件下流变指数n对承载量和摩擦因数的影响。结果表明：稳态条件下，随着流变指数n的减小，油膜厚度增大，油膜人口压力和第二压力峰也在增大，出口温度减小，其它部分温度升高；时变条件下，流变指数n对承载量的影响主要集中在π／2与3π／2附近且在π／2附近影响显著；随着流变指数n的增大摩擦因数明显增大，且时变周期内摩擦因数的波动变大。

英文摘要：

With the multi-level method, a numerical solution was obtained for the power law fluid in the EHL line contact considering the thermal and transient effects. Influences of the index n on the pressure, film thickness and temperature under steady conditions and the carrying capacity and friction coefficient under transient conditions were investigated. The results show that with the decrease of the index n, the film thickness, the inlet pressure and the second pressure peak experience an increase, and the outlet temperature lowers but the rest heightens under steady conditions. Effects of the index n on the carrying capacity focus near both and, and the effect is more significant at in transient conditions. With the increase of the index n, the friction coefficient becomes apparently larger and shows a bigger fluctuation in a transient period.