Inertia Effects in Externally Pressurized Conical Bearings with Unequal Slider Pad Temperature

Abstract

This paper investigates the influence of convective inertia on the characteristics of an externally-pressurized conical bearing with unequal slider pad temperature, rotating with a uniform angular velocity. The fluid is assumed to be incompressible and have a constant viscosity. The governing equations of motion using conical coordinates appear as a system of non-linear partial differential equations. This system is simplified by averaging inertia terms across the film thickness, and the resulting system is solved numerically using a finite difference scheme. An energy equation with convection and dissipation terms is used to determine temperature distribution. It is observed that inclusion of the inertia terms causes a decrease in the dimensionless load capacity and an increase in dimensionless torque. Temperature decreases in the lower half of the bearing gap, and increases in the upper half when inertia terms are included. Presented at the 46th Annual Meeting In Montreal, Quebec, Canada April 29–May 2,...