Abstract
The purpose of this study is to know the change of oil film thickness and traction forces, when the difference of rotational speed of two traction drive rollers becomes unsteadily large by torsional vibration or machine trouble. The simultaneous measurements of optical film thickness and traction forces are performed to investigate the elastohydrodynamic lubrication (EHL) film formation under flooded conditions, on the crowned roller and glass disc interferometry apparatus. The measured profile and thickness of film are compared to the theoretical values given by the two dimensional non-steady thermal EHL calculation. The traction forces measured simultaneously on the crowned roller in the rolling direction are compared to one calculated by two dimensional non-steady thermal non-Newtonian model.
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