Thermal Elastohydrodynamic Lubrication of Point Contacts Using a Newtonian/Generalized Newtonian Lubricant

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dc.contributor.author Habchi, W.
dc.contributor.author Eyheramendy, D. en_US
dc.contributor.author Bair, S. en_US
dc.contributor.author Vergne, P. en_US
dc.contributor.author Morales-Espejel, G. en_US
dc.date.accessioned 2015-09-28T12:36:04Z
dc.date.available 2015-09-28T12:36:04Z
dc.date.copyright 2008
dc.date.issued 2015-09-28
dc.identifier.issn 1023-8883 en_US
dc.identifier.uri http://hdl.handle.net/10725/2193
dc.description.abstract The classical ElastoHydroDynamic (EHD) theory assumes a Newtonian lubricant and an isothermal operating regime. In reality, lubricating oils do not behave as perfect Newtonian fluids. Moreover, in most operating conditions of an engineering system, especially at high speeds, thermal effects are important and temperature can no longer be considered as constant throughout the system. This is one reason why there has always been a gap between numerical results and experimental data. This paper aims to show that this gap can be reduced by taking into consideration the heat generation that takes place in the contact and using appropriate rheological models. For this, a unique thermal ElastoHydrodynamic lubrication model is developed for both Newtonian and non-Newtonian lubricants. Pressure, film thickness and traction results are then compared to their equivalent isothermal results and experimental data. The agreement between thermal calculations and experiments reveals the necessity of considering thermal effects in EHD models. en_US
dc.language.iso en en_US
dc.title Thermal Elastohydrodynamic Lubrication of Point Contacts Using a Newtonian/Generalized Newtonian Lubricant en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 200804200
dc.author.woa N/A en_US
dc.author.department Mechanical Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Tribology Letters en_US
dc.journal.volume 30 en_US
dc.journal.issue 1 en_US
dc.article.pages 41-52 en_US
dc.keywords EHL with non-Newtonian lubricants en_US
dc.keywords Thermal effects in EHL en_US
dc.identifier.doi http://dx.doi.org/10.1007/s11249-008-9310-9 en_US
dc.identifier.ctation Habchi, W., Eyheramendy, D., Bair, S., Vergne, P., & Morales-Espejel, G. (2008). Thermal elastohydrodynamic lubrication of point contacts using a newtonian/generalized newtonian lubricant. Tribology Letters, 30(1), 41-52. en_US
dc.author.email wassim.habchi@lau.edu.lb
dc.identifier.url http://link.springer.com/article/10.1007/s11249-008-9310-9

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