Traction in thermal elastohydrodynamic lubrication of rough surfaces

L. Chang

    Research output: Contribution to journalArticlepeer-review

    57 Scopus citations


    This paper studies the traction behavior of elastohydrodynamically lubricated line contacts between two rough surfaces. The study uses a thermal micro-elastohydrodynamic-lubrication (micro-EHL) model and obtains traction coefficients for a wide range of operating conditions and for film parameters as small as 1.50. The simulation results suggest that the traction is generally insensitive to the roughness structure and magnitude as long as the contact maintains a full EHL film. The results also indicate clearly that the lubricant squeeze induced by the motion and interaction of rough surfaces significantly affects the numerical solutions to thermal micro-elastohydrodynamic lubrication.

    Original languageEnglish (US)
    Pages (from-to)186-191
    Number of pages6
    JournalJournal of Tribology
    Issue number1
    StatePublished - Jan 1992

    All Science Journal Classification (ASJC) codes

    • Mechanics of Materials
    • Mechanical Engineering
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films


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