EHL line contact central and minimum film thickness equations for lubricants with linear piezoviscous behavior

Abstract

Full EHL line contact simulations for smooth surfaces are carried out under fully flooded condition to obtain central and minimum film thickness equations pertaining to lubricants with linear piezoviscous response. The present analysis is based upon the assumptions of isothermal condition and Newtonian fluid model. A major drop in the sensitivity of pressure viscosity coefficient (and hence, the material parameter G) is observed. The exponent of the speed parameter U is marginally smaller while that of load parameter is slightly increased. There is close agreement between the simulated and fitted film thickness values.