Investigation of Elastico-Viscous Hydrodynamic Lubrication of Sleeve Bearing

Abstract
An experimental investigation of the pressure distribution in a full film hydrodynamic sleeve bearing was carried out. The pressure profiles of nearly-Newtonian and significantly elastico-viscous fluids were compared. The results verify previous theoretical predictions of a small additional elastico-viscous component, perpendicular to the “Newtonian component.” For the case investigated viscoelasticity does not contribute significantly in steady state to the LCC, which is determined practically by the highest average rate of shear UIC (1-ε)