Title

Isothermal EHL problem for chemically degrading lubricant

Document Type

Article

Publication Date

12-31-2002

Publication Title

Tribology Series

Abstract

A new formulation for an elastohydrodynamic problem with degrading lubricant is proposed. The formulation takes into account stress-induced degradation of polymer additive to lubricant on the basis of the kinetic equation for polymer degradation. Degradation of polymer additive results in an irreversible viscosity loss, which, in turn, leads to a reduced lubrication film thickness and change in other contact parameters. The problem is solved numerically. A solution of the kinetics equation is compared with some experimental polymer degradation data. The calculated value of the viscosity loss in a lubricated contact is similar to an earlier obtained one in experiments.

Volume

40

Issue

1

First Page

423

Last Page

426

DOI

https://doi.org/10.1016/S0167-8922(02)80046-3

ISSN

0167-8922

Rights

Elsevier

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