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The influence of surface roughness on friction in a flexible hybrid bearing
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-9110-2819
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-7029-1112
2011 (English)In: Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, ISSN 1350-6501, E-ISSN 2041-305X, Vol. 225, no J10, p. 975-985Article in journal (Refereed) Published
Abstract [en]

The effect of surface roughness on friction in all lubrication regimes is studied for a flexible hybrid bearing of a radial piston hydraulic motor. The effect is studied by performing experiments in a specially designed test rig and numerical simulations of the real measured surface topographies of the bearings. The simulations are performed with a two-scale model where surface roughness is treated on a local asperity level by homogenized flow factors and a global scale where the bearing structure is included. Three bearings with different surface topographies are included in the study and both experimentally measured and simulated friction are analysed for each of them. Comparison of friction predicted by the model and experimentally measured friction is performed and it reveals that the model is a valuable tool for analysing the effect of surface roughness in this type of bearing

Place, publisher, year, edition, pages
2011. Vol. 225, no J10, p. 975-985
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-4422DOI: 10.1177/1350650111417203ISI: 000295284900002Scopus ID: 2-s2.0-81255161404Local ID: 25e9bafd-5d55-4ecb-a6b9-335d4dc01c72OAI: oai:DiVA.org:ltu-4422DiVA, id: diva2:977295
Note
Validerad; 2011; 20111021 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Isaksson, PatrikNilsson, DanielLarsson, RolandAlmqvist, Andreas

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Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

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