Modeling the pressure-density relationship in thin films at asperity contacts in mixed lubrication

A. Martini*, R. Cantrell, Q. Wang, R. Q. Snurr

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In mixed lubricated contact, the asperity contact regions may be separated by a thin layer of lubricant film. Simulations of mixed lubrication often use empirical formulae to describe the change of density with pressure in the lubricated areas. However, these models may not be applicable to molecularly thin films at asperity contact regions. We present a molecular simulation approach for density characterization of the fluid at asperity contact regions in mixed lubrication. The resultant density-pressure relationship is compared to the traditional Dowson-Higginson model. It is found that the two models predict comparable densities at low pressures but diverge at higher pressures.

Original languageEnglish (US)
Title of host publicationProceedings of the World Tribology Congress III - 2005
PublisherAmerican Society of Mechanical Engineers
Pages933-934
Number of pages2
ISBN (Print)0791842010, 9780791842010
DOIs
StatePublished - 2005
Event2005 World Tribology Congress III - Washington, D.C., United States
Duration: Sep 12 2005Sep 16 2005

Publication series

NameProceedings of the World Tribology Congress III - 2005

Other

Other2005 World Tribology Congress III
CountryUnited States
CityWashington, D.C.
Period9/12/059/16/05

ASJC Scopus subject areas

  • Engineering(all)

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