Frictional heating of elliptic contacts

J. Bos, H. Moes

    Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

    10 Citations (Scopus)


    Wherever friction occurs mechanical energy is transformed into heat. The maximum surface temperature associated with this heat generation can have an important influence on the tribological behaviour of the mating components. For band contacts and circular contacts this temperature has already been studied extensively. However for elliptic contacts only approximate solutions exist.

    In this work a fast numerical algorithm is presented to calculate the steady state solution for the flash temperature for elliptic contacts with arbitrary entrainment angle. The heat generation may be due to either a uniform or a semi-ellipsoidal shaped heat source distribution, more or less representing EHL conditions and dry or boundary lubrication conditions, respectively. The asymptotic solutions for large and small Peclet numbers and numerical solutions will be presented. Function fits for the flash temperature will be proposed that are more reliable than the function fits in current use, even for circular contacts. Aspect ratios of the contact ellipse in the range of 0.20 - 5.0 are covered. Within this range the fits were found to be accurate within 5%.
    Original languageEnglish
    Title of host publicationDissipative processes in Tribology
    Subtitle of host publicationProceedings of the 20th Leeds-Lyon Symposium on Tribology held in the Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, 7-10 September 1993
    EditorsD. Dowson, C.M. Taylor, T.H.C. Childs, M. Godett, G. Dalmaz
    Place of PublicationAmsterdam
    PublisherElsevier Science
    ISBN (Print)0-444-81764-6
    Publication statusPublished - 1994
    Event20th Leeds-Lyon Symposium on Tribology 1993 - Laboratoire de Mécanique des Contacts, Institut National des Sciences Appliquées de Lyon, Villeurbanne, France
    Duration: 7 Sep 199310 Sep 1993
    Conference number: 20

    Publication series

    NameTribology Series


    Conference20th Leeds-Lyon Symposium on Tribology 1993


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