Effects of lubricant rheology and kinematic conditions on micro-elastohydrodynamic lubrication

L. Chang, C. Cusano, T. F. Conry

    Research output: Contribution to journalConference articlepeer-review

    1 Scopus citations

    Abstract

    The effects of lubricant rheology and surface kinematic conditions on micro-elastohydrodynamic (EHD) lubrication are analyzed under isothermal line-contact conditions. Micro-EHD lubrication is modeled by introducing a surface irregularity in the form of an asperity or a furrow into the contact zone. Under simple sliding conditions, the pressure generated in the vicinity of the irregularity and the resulting surface deformation depend strongly on the lubricant rheology. The surface kinematic conditions have profound effects on micro-EHD lubrication. In general, a stationary surface irregularity produces a relatively strong downstream effect when it is in the inlet region of the contact, and a moving surface irregularity produces a relatively strong upstream effect after it enters the Hertzian central region.

    Original languageEnglish (US)
    Pages (from-to)TRIB27 8p
    JournalAmerican Society of Mechanical Engineers (Paper)
    StatePublished - 1988
    EventPreprint - American Society of Mechanical Engineers - Baltimore, MD, USA
    Duration: Oct 16 1988Oct 19 1988

    All Science Journal Classification (ASJC) codes

    • Mechanical Engineering

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