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

doi:10.1007/s11249-015-0536-z

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

Faculty of Engineering Technology

Research output: Contribution to journal › Article › Academic › peer-review

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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 language	English
Article number	19
Number of pages	11
Journal	Tribology letters
Volume	59
Issue number	1
Early online date	31 May 2015
DOIs	https://doi.org/10.1007/s11249-015-0536-z
Publication status	Published - Jul 2015

Keywords

Mixed lubrication
Friction modeling
Half-space approximation

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10.1007/s11249-015-0536-zLicence: CC BY

ArticleFinal published version, 1.19 MBLicence: CC BY

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

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.",

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AU - Lugt, Pieter M.

AU - van Drogen, Mark

N1 - Open access

PY - 2015/7

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N2 - 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.

AB - 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.

KW - Mixed lubrication

KW - Friction modeling

KW - Half-space approximation

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ER -

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

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Keywords

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