On a model for the prediction of the friction coefficient in mixed lubrication based on a load-sharing concapt with measured surface roughness

Aydar Akchurin*, Rob Bosman, Pieter M. Lugt, Mark van Drogen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

35 Citations (Scopus)
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Abstract

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.
Original languageEnglish
Article number19
Number of pages11
JournalTribology letters
Volume59
Issue number1
Early online date31 May 2015
DOIs
Publication statusPublished - Jul 2015

Keywords

  • Mixed lubrication
  • Friction modeling
  • Half-space approximation

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