一种数值求解弹流润滑膜厚和压力的新方法

A New Numerical Approach for Calculating EHL Film Thickness and Pressure

本文通过直接迭代法对弹流润滑中点、线接触的膜厚和压力进行数值求解。在接触区内,GaussSeidel迭代法用于求解低压区压力,而Jacobi双极子迭代法用于高压区的求解。该方法有编程容易、计算速度快和收敛性好等优点。实际计算表明如何区分高压和低压区从而采用对应的迭代方法对收敛很重要。因此,本文对此做了详细的讨论。

The film thickness and pressure in elastohydrodynamically lubricated line and point contacts have been calculated by using a direct iteration approach. In the lubrication region, the Gauss-Seidel iteration is used for the low pressure parts and the Jacobi double polar iteration for the high ones. The approach has advantages of programming easily and converging quickly. Results show that in calculation the division of the low and high pressure parts is very important.Therefore, how to divide different iterations is discussed in detail.