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A mixed lubrication model incorporating measured surface topography: Part 2: roughness treatment, model validation, and simulation
Siemens Industrial Turbomachinery AB.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-9110-2819
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2010 (English)In: Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, ISSN 1350-6501, E-ISSN 2041-305X, Vol. 224, no 4, p. 353-365Article in journal (Refereed) Published
Abstract [en]

A mixed lubrication flow factor model that permits real three-dimensional surface topography as input has been developed. Part 1 gives the theory of computing flow factors within the model. In this article, a method of adapting the measured surface topography signal to suit the numerical models is developed and presented in detail. The mixed lubrication model is validated through flow measurements for three different rough surface test specimens. Simulation of a hydrodynamic bearing was conducted and the results are presented in terms of pressure distributions and Stribeck curves covering all lubrication regimes. The results indicate that the model may be an efficient and accurate engineering design and research tool for tribological devices operating in all lubrication regimes.

Place, publisher, year, edition, pages
2010. Vol. 224, no 4, p. 353-365
Keywords [en]
Engineering mechanics - Fluid mechanics
Keywords [sv]
Teknisk mekanik - Strömningsmekanik
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-12178DOI: 10.1243/13506501JET659ISI: 000277675800004Scopus ID: 2-s2.0-77951115678Local ID: b4562ad0-4678-11df-a0f4-000ea68e967bOAI: oai:DiVA.org:ltu-12178DiVA, id: diva2:985128
Note
Validerad; 2010; Bibliografisk uppgift: SAGE Best Paper Award, 2010; 20100412 (rola)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Sahlin, FredrikLarsson, RolandMarklund, PärAlmqvist, AndreasLugt, Piet

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Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

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