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

高速发动机油膜惯性对活塞裙润滑影响(英文)

作　　者：孟凡明 张优云 

机构地区：[1]Theory of Lubrication and Bearing Institute, Xi'an Jiaotong University

出　　处：《Chinese Journal of Aeronautics》2004年第1期1-6,共6页中国航空学报（英文版）

基　　金：NationalNaturalScienceFoundationofChina(5 0 3 75 115 )

摘　　要：The influence of oil film inertia on piston skirt lubrication in a high speedengine is investigated by an iteration method that alternately solves the Navier-Stocks equationsand the Reynolds equa-tion by finite element method and difference method. The Reynolds lubricationequation including oil film inertia is developed, in which the inertia coefficient is introduced toinvestigate the effect of oil film inertia. The iteration procedure and finite formulation ofsolving the new Reynolds lubrication equation are given to analyze the effect of oil film on pistonskirt in this kind of engine. The calculation results show that the oil film inertia has someeffects on the friction force, pressure force and load capacity of oil film and its effect isobvious for the last. The Reynolds lubrication equation proposed can be also used to analyze thelubrication performance of the piston skirt in low or medium speed engine and some other lubricationproblems generally excluding oil film inertia with the inertia coefficient being set at zero.The influence of oil film inertia on piston skirt lubrication in a high speedengine is investigated by an iteration method that alternately solves the Navier-Stocks equationsand the Reynolds equa-tion by finite element method and difference method. The Reynolds lubricationequation including oil film inertia is developed, in which the inertia coefficient is introduced toinvestigate the effect of oil film inertia. The iteration procedure and finite formulation ofsolving the new Reynolds lubrication equation are given to analyze the effect of oil film on pistonskirt in this kind of engine. The calculation results show that the oil film inertia has someeffects on the friction force, pressure force and load capacity of oil film and its effect isobvious for the last. The Reynolds lubrication equation proposed can be also used to analyze thelubrication performance of the piston skirt in low or medium speed engine and some other lubricationproblems generally excluding oil film inertia with the inertia coefficient being set at zero.

关 键 词：high speed engine piston skirt INERTIA inertia coefficient reynoldslubrication equation iteration method finite element difference method 

分 类 号：V231[航空宇航科学与技术—航空宇航推进理论与工程]