PLANE EHL PROBLEMS FOR PRE-CRITICAL HEAVI-LOADED CONTACT: STABLE NUMERICAL SOLUTIONS

摘要

The paper is aimed at considering the classic isothermal plane EHL problem for heavy-loaded contacts lubricated by Newtonian and non-Newtonian fluids. The analytical analysis of the problem is based on matched asymptotic expansions. For pre-critical lubrication regimes asymptotic equations for pressure and gap are derived and solved numerically in the inlet and exit zones. The number of input parameters in asymptotic equations is reduced. The numerical solutions are stable. Formulas for lubrication film thickness for Newtonian and non-Newtonian fluids for pre- and over-critical regimes are derived based on the asymptotic analysis.