Developments in elastohydrodynamic lubrication calculations with multilevel techniques

W.E. ten Napel, C.H. Yenner

    Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

    Abstract

    Since the beginning of the eighties quite a number of papers regarding film thickness and pressure calculations in E.H.L. have been published. Different methods, i.e. Newton Raphson, Gauss Seidel, variational techniques and even finite element techniques, have been applied. At the University of Twente, since 1986, an alternative method, i.e. the multigrid method, has been developed and applied. The advantages and features of this method are discussed in this paper. It is shown that the complexity of the method, in combination with a multi-level integration technique, is about O(n). As a result of this low complexity the method enables accurate solution, i.e. using large numbers of nodes, of the problems; even on small capacity computers. Furthermore it allows detailed simulations of transient problems. Such simulations are of particular interest with respect to the relation between surface features, e.g. indentations, and fatigue life of E.H. L. components. In this paper some recent results with regard to the over-rolling of a surface irregularity are presented. (A)

    Original languageEnglish
    Title of host publicationRolling element bearings towards the 21st century
    Subtitle of host publicationpapers presented by the Tribology Group of the Institution of Mechanical Engineers and held at the Institution of Mechanical Engineers on 16 November 1990
    Place of PublicationLondon
    PublisherMechanical Engineering Publications Ltd.
    ISBN (Print)9780852987520
    Publication statusPublished - 1990

    Publication series

    NameIMechE Seminar ;1990-7
    PublisherMechanical Engineering Publications
    Volume1990-7

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    ten Napel, W. E., & Yenner, C. H. (1990). Developments in elastohydrodynamic lubrication calculations with multilevel techniques. In Rolling element bearings towards the 21st century: papers presented by the Tribology Group of the Institution of Mechanical Engineers and held at the Institution of Mechanical Engineers on 16 November 1990 (IMechE Seminar ;1990-7; Vol. 1990-7). London: Mechanical Engineering Publications Ltd..