In this study a numerical model is presented to investigate the effect of surface roughness in point-contact (elliptical contact)
elastohydrodynamic lubrication. Similar to the authors'approach for line-contact EHL, the modified Raynolds equation by Patir and Cheng the bulk elastic deformation of the surfaces and the elasto-plastic asperity contact equations by Zhao . are simultaneously solved to obtain the pressure and the film profile.The central and the minimum film thickness and the asperity
load ratio are then obtained from the results.At the next step by performing the regression analyses based on the results of a
wide range of simulations,curve-fit expressions are presented to readily predict the film thickness and the asperity load ratio in mixed lubrication elliptical contact.Finally,the results from these formulas are compared with the results presented in other publications to show the efficiency of the present approach