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Non-Newtonian fluid model incorporated into elastohydrodynamic lubrication of rectangular contacts
Luleå tekniska universitet.
1983 (English)In: Fluid film lubrication: a century of progress presented at Joint Lubrication Conference, Hartford, Connecticut, Oktober 18-20, 1983 / [ed] S.M. Rohde, American Society of Mechanical Engineers , 1983Conference paper, Meeting abstract (Other academic)
Abstract [en]

A procedure is outlined for the numerical solution of the complete elastohydrodynamic lubrication of rectangular contacts incorporating a non-Newtonian fluid model. The approach uses a Newtonian model as long as the shear stress is less than a limiting shear stress. If the shear stress exceeds the limiting value, the shear stress is set equal to the limiting value. The numerical solution requires the coupled solution of the pressure, film shape, and fluid rheology equations from the inlet to the outlet. Isothermal and no-side-leakage assumptions were imposed in the analysis. The influence of dimensionless speed, load, materials, and sliding velocity and limiting-shear-strength proportionality constant on dimensionless minimum film thickness was investigated. Fourteen cases were used in obtaining the minimum-film-thickness equation for an elastohydrodynamically lubricated rectangular contact incorporating a non-Newtonian fluid model. Computer plots are also presented that indicate in detail pressure distribution, film shape, shear stress at the surfaces, and flow throughout the conjunction.

Place, publisher, year, edition, pages
American Society of Mechanical Engineers , 1983.
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-30333Local ID: 41810e60-963a-11de-8da0-000ea68e967bOAI: oai:DiVA.org:ltu-30333DiVA, id: diva2:1003560
Conference
Fluid Film Lubrication : 18/10/1983 - 20/08/1984
Note
Godkänd; 1983; 20090831 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-01-14Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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  • text
  • asciidoc
  • rtf