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

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

Research output: Contribution to journalConference article

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 - Dec 1 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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