Coupling Algorithm for EHL of Journal Bearings

A coupling algorithm for EHL of journal bearings is put forward.It uses such methods as the APDL language in ANSYS software to program,difference method to solve Reynolds equation and finite element method to obtain the quantity of elastic deformation to reduce computation time and get a more accurate result of a journal bearing under EHL condition.The pressure and thickness distribution of oil-film are obtained using the algorithm with specified parameters,and the correctness of the algorithm is verified.The quantity of elastic deformation in journal is also calculated.The results show that the contact surfaces between each bearing journal end and bearing pedestal is vulnerable to wear by abrasive grains,because the operation time interval is short,and this theoretically explains why the position at bearing journal is wear much more severe than the middle parts.