Quantification of Friction Regimes in Elastohydrodynamic Lubrication

Wasim Habchi (1) , Scott Bair , Philippe Vergne (1)

1 TMI - Tribologie et Mécanique des Interfaces

This paper identifies the different friction regimes encountered in elastohydrodynamic lubricated (EHL) point contacts using a quantitative, physics-based approach. The idea is to link different traction regimes (linear, non-linear viscous, plateau and thermoviscous) to dimensionless numbers and identify ranges of those numbers where a given regime is encountered or dominates the frictional 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 the use of three different dimensionless numbers

Domaines: Autre

Wasim Habchi, Scott Bair, Philippe Vergne. Quantification of Friction Regimes in Elastohydrodynamic Lubrication. 5th World Tribology Congress, WTC2013, Sep 2013, Turin, Italy. pp.USB stick. ⟨hal-00862932⟩