Elastohydrodynamic Lubrication of Rough Contacts under Rolling/sliding Conditions

Description

The aim of the research is to extend the understanding of the EHL of rough contacts under rolling/sliding conditions and to develop a rational, real-time design process for components such as gears, cams and rolling element bearings.Three main activities will be undertaken:onterferometric measurements of the film thickness under rolling/sliding conditions will be made because accurate measurements of clearance provide the only direct way of checking the predictions of EHL theory;the maximum predicted stress in contacts with transverse and in-line roughness will be checked using the inverse method because it allows checks to be made under more realistic operating conditions and it allows checks of the maximum stress to be made for general roughnesses; andcalculation of the pressures and clearances in rough EHL contacts is extremely lengthy and there are problems with the short wavelength components of roughness, so a rapid analysis technique for rolling contacts will be extended to rolling/sliding conditions.