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A solution to the hydrodynamic lubrication of a circular point contact sliding over a flat surface with cavitation
Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Functional Surfaces.ORCID iD: 0000-0003-0292-893X
2012 (English)In: Theoretical and Applied Mechanics Letters, ISSN 2095-0349, Vol. 2, no 3, article id 032004Article in journal, Letter (Refereed) Published
Abstract [en]

This letter presents an analytical solution to the hydrodynamic lubrication of a circular point contact sliding over a flat surface with cavitation. The solution is found by solving the Reynolds equation with Reynolds boundary condition for cavitation. The cavitation boundary is shown to be straight lines directed 108.4° against the sliding direction. The result is experimentally verified in the limit of large values of viscosity, sliding velocity and radius of a spherical ball. The solution raises questions about the coupling between cavitation and film rupture and can be used as an independent check on the validity of numerical solutions.

Place, publisher, year, edition, pages
Melville, NY: American Institute of Physics (AIP), 2012. Vol. 2, no 3, article id 032004
Keywords [en]
Reynolds equation, analytical solution, cavitation, point contact
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:hh:diva-17792DOI: 10.1063/2.1203204OAI: oai:DiVA.org:hh-17792DiVA, id: diva2:529811
Funder
Swedish Foundation for Strategic Research Available from: 2012-05-31 Created: 2012-05-31 Last updated: 2018-01-12Bibliographically approved

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Löfgren, Hans Bertil

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  • asciidoc
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