Numerical Analysis of Elasto-Hydrodynamically Lubricated Point Contacts with Three Dimensional Laser Micro-Texturing Asperity

摘要

Though the influence of micro-surface texturing on hydrodynamic lubrication has been widely investigated in the last decade, very little attention has been paid to its effect on elasto-hydrodynamically Lubricated (EHL) contact problem, which is the main aim of this paper. The Reynolds equation, film thickness equation and complementarily equations form a non-linear solution for the micro-EHL problem. By the full multi-grid method, the film thickness and pressure distribution are solved for a wide range of loading conditions. The effect of micro-texturing parameters on lubrication is investigated. The results indicate that the film thickness and pressure distribution are sensitive to the micro-surface texturing, which affects vitally the. coefficient of friction.