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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 tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0001-9110-2819
Vise andre og tillknytning
2010 (engelsk)Inngår i: Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, ISSN 1350-6501, E-ISSN 2041-305X, Vol. 224, nr 4, s. 353-365Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
2010. Vol. 224, nr 4, s. 353-365
Emneord [en]
Engineering mechanics - Fluid mechanics
Emneord [sv]
Teknisk mekanik - Strömningsmekanik
HSV kategori
Forskningsprogram
Maskinelement
Identifikatorer
URN: urn:nbn:se:ltu:diva-12178DOI: 10.1243/13506501JET659ISI: 000277675800004Scopus ID: 2-s2.0-77951115678Lokal ID: b4562ad0-4678-11df-a0f4-000ea68e967bOAI: oai:DiVA.org:ltu-12178DiVA, id: diva2:985128
Merknad
Validerad; 2010; Bibliografisk uppgift: SAGE Best Paper Award, 2010; 20100412 (rola)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Sahlin, FredrikLarsson, RolandMarklund, PärAlmqvist, AndreasLugt, Piet

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