Effects of Surface Textures on Tribological and Dynamic Characteristic Variables of Lubricated Line Contacts

This paper presents the tribological and dynamic performance characteristics of ellipsoidal dimpled textured EHL concentrated line contacts. The simulated investigation involves coupled solution of incompressible Reynolds lubrication equation considering cavitation, elastic deformation, and rheological effects. The performance parameters (pressure profile, film thickness, frictional coefficient, contact dynamic stiffness and damping coefficients) of the textured line contacts have been evaluated and compared with conventional contacts at the sets of input data. The results reveal substantial increase (10–38%) in minimum film thickness and significant reduction (16–50%) in frictional coefficient with textured contacts.