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Research on Effect of Oil Film Inertia on Piston Skirt by Iteration Method

机译：迭代法研究油膜惯性对活塞裙的影响

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摘要

The influence of oil film inertia on piston skirt lubrication in a high speed engine is investigated by an iteration method that alternately solves the Navier-Stocks equations and the Reynolds equa-tion by finite element method and difference method. The Reynolds lubrication equation including oil film inertia is developed, in which the inertia coefficient is introduced to investigate the effect of oil film inertia. The iteration procedure and finite formulation of solving the new Reynolds lubrication equation are given to analyze the effect of oil film on piston skirt in this kind of engine. The calculation results show that the oil film inertia has some effects on the friction force, pressure force and load capacity of oil film and its effect is obvious for the last. The Reynolds lubrication equation proposed can be also used to analyze the lubrication performance of the piston skirt in low or medium speed engine and some other lubrication problems generally excluding oil film inertia with the inertia coefficient being set at zero.
机译：通过迭代方法研究了油膜惯性对高速发动机活塞裙润滑的影响，该迭代方法通过有限元法和差分法交替求解Navier-Stocks方程和Reynolds方程。建立了包括油膜惯性的雷诺润滑方程，引入了惯性系数来研究油膜惯性的影响。给出了求解新雷诺润滑方程的迭代程序和有限公式，以分析油膜对这种发动机活塞裙的影响。计算结果表明，油膜惯性对油膜的摩擦力，压力和承载能力有一定的影响，最后效果明显。提出的雷诺润滑方程还可用于分析低速或中速发动机中活塞裙的润滑性能，以及一些其他润滑问题，这些惯性问题通常将油膜惯性设置为零，而不包括油膜惯性。

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