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A mixed lubrication model incorporating measured surface topography: Part 1: theory of flow factors
Siemens Industrial Turbomachinery AB.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0001-9110-2819
SKF Engineering & Research Center, Nieuwegein.ORCID-id: 0000-0001-9356-7599
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. 335-351Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A mixed lubrication model that permits real three-dimensional surface topography as input is developed. The theory of computing flow factors within the model is presented, and with a following paper (Part 2) the method of measuring and adapting the surface roughness, and model validation through flow measurements and application to a bearing is shown. A contact mechanics model is used to calculate the elastoplastic displacement of a periodic topography signal. A method based on homogenization is used to calculate flow factors for all lubrication regimes. The flow factors are compared with the Patir and Cheng method. Results indicate that the two methods compare well for longitudinal roughness lay, but differ significantly for a cross-patterned surface roughness due to the more complete flow description of the current model.

sted, utgiver, år, opplag, sider
2010. Vol. 224, nr 4, s. 335-351
Emneord [en]
Engineering mechanics - Fluid mechanics
Emneord [sv]
Teknisk mekanik - Strömningsmekanik
HSV kategori
Forskningsprogram
Maskinelement
Identifikatorer
URN: urn:nbn:se:ltu:diva-8575DOI: 10.1243/13506501JET658ISI: 000277675800003Scopus ID: 2-s2.0-77951134519Lokal ID: 71772350-4677-11df-a0f4-000ea68e967bOAI: oai:DiVA.org:ltu-8575DiVA, id: diva2:981513
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, RolandAlmqvist, AndreasLugt, PietMarklund, Pär

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Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology

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