Crucial role of solid body temperature on elastohydrodynamic film thickness and traction

Haichao Liu* (Corresponding Author), Binbin Zhang, Norbert Bader, Feng Guo, Gerhard Poll, Pei Yang

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    3 Citations (Scopus)

    Abstract

    The effect of the solid body temperature effect on film thickness and traction in elastohydrodynamic lubrication (EHL) has been studied numerically. At a moderate entrainment velocity, the EHL film behavior is controlled by the solid body temperature as the oil heats up to the body temperature before entering the contact zone and thus the film thickness decreases. For high velocity conditions, inlet shear and compressive heating also contribute to the reduction of film thickness. The results indicate that the measured film thickness and traction on disc machines might be lower than the expected values when the disc temperature exceeds the supplied oil temperature.
    Original languageEnglish
    Pages (from-to)386-397
    JournalTribology international
    Volume131
    Early online date9 Nov 2018
    DOIs
    Publication statusPublished - 1 Mar 2019

    Keywords

    • UT-Hybrid-D

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