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Elastohydrodynamic lubrication (EHL) is a type of fluid-film lubrication where hydrodynamic behaviors at contact surfaces are affected by both elastic deformation of surfaces and lubricant viscosity. Modelling of contact interfaces under EHL is challenging due to high nonlinearity, complexity, and the multi-disciplinary nature. This paper aims to understand the state of the art of computational modelling of EHL by (1) examining the literature on modeling of contact surfaces under boundary and mixed lubricated conditions, (2) emphasizing the methods on the friction prediction occurring to contact surfaces, and (3) exploring the feasibility of using commercially available software tools (especially, Simulia/Abaqus) to predict the friction and wear at contact surfaces of objects with relative reciprocating motions.


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State of the art of friction modelling at interfaces subjected to elastohydrodynamic lubrication (EHL)

Show Author's information Zhuming BI1( )Donald W. MUELLER1Chris W. J. ZHANG2
Civil and Mechanical Engineering, Purdue University Fort Wayne, IN 46805, USA
Department of Mechanical Engineering, University of Saskatchewan, Saskatoon SK S7N 5A9, Canada

Abstract

Elastohydrodynamic lubrication (EHL) is a type of fluid-film lubrication where hydrodynamic behaviors at contact surfaces are affected by both elastic deformation of surfaces and lubricant viscosity. Modelling of contact interfaces under EHL is challenging due to high nonlinearity, complexity, and the multi-disciplinary nature. This paper aims to understand the state of the art of computational modelling of EHL by (1) examining the literature on modeling of contact surfaces under boundary and mixed lubricated conditions, (2) emphasizing the methods on the friction prediction occurring to contact surfaces, and (3) exploring the feasibility of using commercially available software tools (especially, Simulia/Abaqus) to predict the friction and wear at contact surfaces of objects with relative reciprocating motions.

Keywords: elastohydrodynamic lubrication (EHL), surface roughness, lubricant rheology, finite element analysis (FEA), friction prediction, Simulia/Abaqus, coefficient of friction (CoF)

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Received: 24 May 2020
Revised: 14 July 2020
Accepted: 25 August 2020
Published: 18 November 2020
Issue date: April 2021

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© The author(s) 2020

Acknowledgements

The first author Zhuming Bi would like to acknowledge the sponsorship of Senior Summer Faculty Grant from Purdue University Fort Wayne (PFW) and the Faculty Collaborative Research Grant from Purdue University Fort Wayne (PFW).

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