Influence of surface waviness on the thermal elastohydrodynamic lubrication of an eccentric-tappet pair

J. Wang, C. H. Venner, A.A. Lubrecht

    Research output: Contribution to journalArticleAcademicpeer-review

    12 Citations (Scopus)

    Abstract

    The effect of single-sided and double-sided harmonic surface waviness on the film thickness, pressure, and temperature oscillations in an elastohydrodynamically lubricated eccentric-tappet pair has been investigated in relation to the eccentricity and the waviness wavelength. The results show that, during one working cycle, the waviness causes significant fluctuations of the oil film, pressure, and temperature, as well as a reduction in minimum film thickness. Smaller wavelength causes more dramatic variations in oil film. The fluctuations of the pressure, film thickness, temperature, and traction coefficient caused by double-sided waviness are nearly the same compared with the single-sided waviness, but the variations are less intense. 

    Original languageEnglish
    Article number021001
    Number of pages11
    JournalJournal of tribology - Transactions of the ASME
    Volume135
    Issue number2
    DOIs
    Publication statusPublished - 2013

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