On friction regimes in quantitative elastohydrodynamics

This paper identifies the different friction regimes encountered in elastohydrodynamic lubricated point contacts using a quantitative, physics-based approach. The idea is to link different traction regimes to dimensionless numbers and identify ranges of those numbers where a given regime is encounte...

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Bibliographic Details
Main Author: Habchi, W. (author)
Other Authors: Bair, S. (author), Vergne, P. (author)
Format: article
Published: 2015
Online Access:http://hdl.handle.net/10725/2181
http://dx.doi.org/10.1016/j.triboint.2012.10.005
http://www.sciencedirect.com/science/article/pii/S0301679X12003258
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Summary:This paper identifies the different friction regimes encountered in elastohydrodynamic lubricated point contacts using a quantitative, physics-based approach. The idea is to link different traction regimes to dimensionless numbers and identify ranges of those numbers where a given regime is encountered or dominates the friction response of the contact. A numerical investigation of traction in point contacts lubricated with a typical mineral oil is employed. The measured thermo-physical properties of the oil are used without any modification to force agreement with experiments. The authors propose four friction regimes delimited by the combined values of three dimensionless parameters.