The Causes of Asymmetric Deformation of Surface Roughness Asperities in Elastohydrodynamic Lubrication Contacts
- 8 September 2021
- journal article
- research article
- Published by ASME International in Journal of Tribology
- Vol. 144 (6), 1-38
- https://doi.org/10.1115/1.4052255
Abstract
This paper provides the main causes of asymmetric or directional deformation of surface roughness based on a transient non-Newtonian thermal elastohydrodynamic lubrication (EHL) model, where the contact materials have different thermal conductivities and elastic moduli. It is clarified that the asymmetric deformation of the asperities appears due to two causes. One depends on the slide-roll ratio and the difference in thermal conductivity between contact materials, and the other is caused by the contact pressure between the asperities through the oil film.Keywords
This publication has 32 references indexed in Scilit:
- Elastohydrodynamic Lubrication: A Gateway to Interfacial Mechanics—Review and ProspectJournal of Tribology, 2011
- A Review of Elasto-Hydrodynamic Lubrication TheoryTribology Transactions, 2011
- Traction in EHL Line Contacts Using Free-Volume Pressure-Viscosity Relationship With Thermal and Shear-Thinning EffectsJournal of Tribology, 2008
- Sixty years of EHLLubrication Science, 2006
- Lubricant thermal conductivity and heat capacity under high pressureProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2000
- Lubricant properties for input to hydrodynamic and elastohydrodynamic lubrication analysesProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2000
- Past, present and future studies in elastohydrodynamicsProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 1999
- A Generalized Reynolds Equation for Non-Newtonian Thermal Elastohydrodynamic LubricationJournal of Tribology, 1990
- Fourth Paper: Shear Behaviour of Elastohydrodynamic Oil Films at High Rolling Contact PressuresProceedings of the Institution of Mechanical Engineers, 1967
- The Viscosity WedgeA S L E Transactions, 1958