The effects of fluid inertia forces in squeeze film bearing lubricated with pseudo-plastic fluids. 1st report Parallel circular squeeze film bearings.

Abstract

In this research work, the effects of fluid inertia forces in parallel circular squeeze film bearings lubricated with pseudo-plastic fluids are examined theoretically. In the analysis, the cubic equation obtained from the empirical flow curves for pseudo-plastic fluids is used as the relation between shear stress and rate of shear and the inertia term in the momentum equation is approximated by the mean value averaged across the film thickness. The effects of inertia forces on the pressure distribution of the circular bearings are discussed for various nonlinear factors of pseudo-plastic fluids.