On a Model for the Prediction of the Friction Coefficient in Mixed Lubrication Based on a Load-Sharing Concept with Measured Surface Roughness

A new model was developed for the simulation of the friction coefficient in lubricated sliding line contacts. A half-space-based contact algorithm was linked with a numerical elasto-hydrodynamic lubrication solver using the load-sharing concept. The model was compared with an existing asperity-based...

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Bibliographic Details
Published inTribology letters Vol. 59; no. 1; pp. 1 - 11
Main Authors Akchurin, Aydar, Bosman, Rob, Lugt, Piet M., van Drogen, Mark
Format Journal Article
LanguageEnglish
Published New York Springer US 01.07.2015
Springer Nature B.V
Subjects
Algorithms
Asperity
Chemistry and Materials Science
Coefficient of friction
Computer simulation
Corrosion and Coatings
Friction
Half spaces
Lubrication
Materials Science
Mathematical models
Nanotechnology
Original Paper
Physical Chemistry
Sliding
STLE Tribology Frontiers Conference 2014
Surface roughness
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thin Films
Tribology
Mixed lubrication
Friction modeling
Half-space approximation
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Summary:A new model was developed for the simulation of the friction coefficient in lubricated sliding line contacts. A half-space-based contact algorithm was linked with a numerical elasto-hydrodynamic lubrication solver using the load-sharing concept. The model was compared with an existing asperity-based friction model for a set of theoretical simulations. Depending on the load and surface roughness, the difference in friction varied up to 32 %. The numerical lubrication model makes it possible to also calculate lightly loaded contacts and can easily be extended to solve transient problems. Experimental validation was performed by measuring the friction coefficient as a function of sliding velocity for the stationary case.
ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-015-0536-z