A new concept in rotary shaft seal lubrication : viscoelastohydrodynamic (VEHD) lubrication

H.J. Leeuwen, van, M.J.L. Stakenborg

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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    Abstract

    In practice rotary shaft seals will experience a small-amplitude dynamic excitation. It is shown that under periodic excitation circumferentially nonuniform clearances develop due to viscous seal material behaviour. The nearby fluid will fill these gaps, so entrainment and squeeze effects can develop fluid pressures, which are sufficiently high to overcome the radial preload. Viscous seal properties are essential in this type of EHD lubrication. Hence it is designated viscoelastohydrodynamic (VEHD) lubrication. At present, this lubrication concept is the only macrohydrodynamic theory that explains the existence of a consistent circumferentially nonuniform film geometry of appreciable dimensions. Moreover, calculated values of film thickness and friction are in agreement with experimental data.
    Original languageEnglish
    Title of host publicationVehicle tribology : proceedings of the 17th Leeds-Lyon symposium, held in Bodington Hall, the University of Leeds, England, 4-7 September 1990
    EditorsD. Dowson, C.M. Taylor, M. Godet
    Place of PublicationAmsterdam
    PublisherElsevier
    Pages373-380
    ISBN (Print)0-444-88796-2
    Publication statusPublished - 1991

    Publication series

    NameTribology series
    Volume18
    ISSN (Print)0167-8922

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