Research on High Efficient Direct Algorithm of Transient Point Contact EHL Problem
A new fast direct algorithm is developed to analyze the transient point contact EHL problem.In the process of solving EHL,by analyzing the characteristics of mesh discretization in the computational domain,and taking the solving strategy of di-viding the discrete Reynolds algebraic equation into blocks by column and solving the algebraic equation column by column,so that the dimension of the equation at each time step is significantly reduced,and the computational efficiency is greatly promoted.The typical characteristics of oil film and pressure evolution process under point contact EHL pure extrusion condition are ob-tained by using the new algorithm,which proves the correctness of the new algorithm.Numerical experiments and comparison show that the new algorithm has an unparalleled high efficiency of the composite direct iteration method,compared with the row-by-row iteration method,the new algorithm also has significantly higher computational efficiency,and with increasing of the number of grids,the efficiency of the new algorithm becomes more prominent.
TransientPoint ContactElastohydrodynamic LubricationColumn MatrixSolve Column by Colu-mnHigh Efficiency Direct Algorithm
NETL
NSTL
万方数据
