FINITE-ELEMENT METHOD FOR EHL ANALYSIS OF SPHERICAL BODIES

A finite-element solution for elastohydrodynamic lubrication (EHL) of spherical bodies undergoing elastic deformation is presented. The Gale rkin finite-element approach is employed and the domain under investig ation is discretized using isoparametric quadrilateral elements. Isoth ermal conditions are assumed and the generation of the pressure is ass umed to be governed by the Reynolds equation. The viscosity and the de nsity of the oil are assumed to be functions of the pressure. It is as sumed that the underlying surface deforms elastically under the hydrod ynamic pressure distribution. The accuracy of the technique is illustr ated in particular examples.