Effect of starvation on traction and film thickness in thermo-EHL line contacts with shear-thinning lubricants

Document Type

Article

Publication Date

12-1-2008

Abstract

The effect of starvation on traction and film thickness behavior in thermo-EHL rolling/sliding line contacts has been studied using full EHL simulations. The simulations employed the free volume equation for viscosity-pressure-temperature relationship and Carreau viscosity model to describe the shear-thinning behavior of the EHL lubricant. The simulation results were used to develop equations for estimating the factors by which the traction coefficient increases and film thickness decreases as a function of the degree of starvation. For the situations involving inadequate lubricant supply at the inlet, these factors can be used to correct the traction coefficient and central film thickness predicted with the assumption of fully flooded condition. © 2008 Springer Science+Business Media, LLC.

Publication Source (Journal or Book title)

Tribology Letters

First Page

171

Last Page

177

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