Browsing by Author "Vergne, P."

Éléments finis stabilisés pour les problèmes de lubrification élastohydrodynamique

Habchi, W.; Eyheramendy, D.; Vergne, P. (CFM, 2017-08-23)

Ce travail présente un modèle pour les problèmes de lubrification Élastohydrodynamique (EHD). Une approche de type éléments finis avec couplage fort est employée. Les problèmes hydrodynamique et élastique sont résolus ...

A finite element approach of the fully coupled elastohydrodynamic problem

Habchi, W.; Eyheramendy, D.; Bair, S.; Vergne, P.; Morales-Espejel, G. (ASME, 2017-08-22)

A Finite Element Approach of Thin Film Lubrication in Circular EHD Contacts

Habchi, Wassim; Demirci, I.; Eyheramendy, D.; Morales-Espejel, G. E.; Vergne, P. (2016-05-06)

So far, most of the numerical studies concerning elastohydrodynamic point contact lubrication have been realized using finite differences. This paper describes a finite element approach for the modelling of both, thick and ...

A finite element approach to model thin films in circular EHD contacts

Habchi, W.; Demirci, I.; Eyheramendy, D.; Morales-Espejel, G.; Vergne, P. (Elsevier, 2019-02-06)

Lubrication of machine elements such as gears and bearings appears to be essential for the good functioning of a mechanical system. In many applications, the pressure generated within tribological interfaces is high enough ...

Full Film, Boundary Lubrication and Tribochemistry in Steel Circular Contacts Lubricated with Glycerol

Habchi, W.; Matta, C.; Joly-Pottuz, L.; De Barros, M.I.; Martin, J.M.; Vergne, P. (2015-09-21)

In this article, the lubricating properties of pure glycerol are investigated under both mild and severe EHL regimes. Amazingly low friction coefficients (about 0.01) are reported by experiments in thick film regimes ...

A Full-System Approach of the Elastohydrodynamic Line/Point Contact Problem

Habchi, Wassim; Eyheramendy, D.; Vergne, P.; Morales-Espejel, G. E. (2016-05-09)

The solution of the elastohydrodynamic lubrication (EHL) problem involves the simultaneous resolution of the hydrodynamic (Reynolds equation) and elastic problems (elastic deformation of the contacting surfaces). Up to ...

Influence of Pressure and Temperature Dependence of Thermal Properties of a Lubricant on the Behavior of Circular TEHD Contacts

Habchi, Wassim; Vergne, P.; Bair, S.; Andersson, O.; Eyheramendy, D.; Morales-Espejel, G. E. (2015-09-21)

The aim of this paper is to study the effects of pressure and temperature dependence of a conventional lubricant's thermal properties on the behaviour of heavily loaded thermal elastohydrodynamic lubrication (TEHL) contacts. ...

A need for relevant multi-physics modelling of EHD problems

Habchi, W.; Fillot, N.; Andersson, O.; Bair, S.; Eyheramendy, D.; Vergne, P.; Morales-Espejel, G.E. (2018-01-02)

A numerical investigation of local effects on the global behavior of TEHD highly loaded circular contacts

Habchi, Wassim; Vergne, P.; Bair, S.; Fillot, N.; Morales-Espejel, G. E. (2015-09-21)

This paper presents a numerical investigation of the local behavior of highly loaded thermal elastohydrodynamic contacts. The study is a continuation to a previous work of the authors where it was found that neglecting the ...

Numerical investigation of the use of machinery low-viscosity working fluids as lubricants in elastohydrodynamic lubricated point contacts

Habchi, Wassim; Vergne, P.; Eyheramendy, D.; Morales-Espejel, G. E. (2015-09-21)

This study proposes a numerical investigation of the potential use of machinery working fluids as lubricants in contacts operating under an elastohydrodynamic regime. These fluids are usually of very low viscosity and ...

A numerical study of friction in isothermal EHD rolling-sliding sphere-plane contacts with spinning

Dormois, H.; Fillot, N.; Habchi, W.; Dalmaz, G.; Vergne, P.; Morales-Espejel, G. E.; Ioannides, E. (2015-09-28)

This paper presents a study of the spinning influence on film thickness and friction in EHL circular contacts under isothermal and fully flooded conditions. Pressure and film thickness profiles are computed with an original ...

On friction regimes in quantitative elastohydrodynamics

Habchi, W.; Bair, S.; Vergne, P. (2015-09-21)

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 ...

On the compressive heating/cooling mechanism in thermal elastohydrodynamic lubricated contacts

Habchi, W.; Vergne, P. (2018-01-03)

The importance of compressive heating/cooling occurring within lubricating films in thermal elastohydrodynamic lubricated contacts has not been given sufficient attention in the literature. This paper presents a numerical ...

On the use of ultra-low-viscosity fluids as lubricants in EHL contacts

Habchi, W.; Vergne, P.; Eyheramendy, D.; Morales-Espejel, G. E. (Elsevier, 2019-02-06)

Quantification of Friction Regimes in Elastohydrodynamic Lubrication

Habchi, W.; Bair, S.; Vergne, P. (2019-02-07)

Stabilized Fully-Coupled Finite Elements for Elastohydrodynamic Lubrication Problems

Habchi, Wassim; Eyheramendy, D.; Vergne, P.; Morales-Espejel, G. (2015-09-21)

This work presents a model for elastohydrodynamic (EHD) lubrication problems. A finite element full-system approach is employed. The hydrodynamic and elastic problems are solved simultaneously which leads to fast convergence ...

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

Habchi, W.; Eyheramendy, D.; Bair, S.; Vergne, P.; Morales-Espejel, G. (2015-09-28)

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 ...

Browsing by Author "Vergne, P."

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