Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
Volume 221, Issue J3, Pages 223-235Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1243/13506501JET219
Keywords
traction; flash temperatures; heat partition; non-Newtonian; thermal elastohydrodynamic lubrication; limiting shear stress
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Funding
- Engineering and Physical Sciences Research Council [GR/T05059/01] Funding Source: researchfish
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This article presents the results of a series of thermal elastohydrodynamic lubrication (EHL) analyses of a set of disc experiments carried out by Patching et al. The authors have previously calculated the heat partition at each load stage from the experimental data, and the present work seeks to compare the heat partition developed in a thermal EHL analysis of the lubricant film with that calculated from the experiments. These EHL analyses show that the heat partition depends on the non-Newtonian formulation used. Only when the dissipation takes place by wall slip occurring at the faster moving surface do the heat partition results approach those determined from the experimental results. It is concluded that this combination of experimental heat partition results with associated EHL analysis can prove to be a much more discerning test of theological behaviour in EHL contacts than is provided by measurement of traction.
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