Film Thickness Calculations in Elastohydrodynamically Lubricated Circular Contacts, Using a Multigrid Method

A.A. Lubrecht*, C.H. Venner, W.E. ten Napel, R. Bosma

*Corresponding author for this work

    Research output: Contribution to journalConference articleAcademicpeer-review

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    Abstract

    Minimum, central and average film thickness have been calculated for the isothermal E. H. L. point contact case, for a variety of load, rolling speed, and material parameters. The equations governing this problem were solved using a Multigrid method. This technique offers the possibility to work with a very fine grid, obtaining detailed and accurate solutions, at the cost of moderate cpu times and storage requirements, on medium-size computers. Computations for low loads, requiring a large inlet zone, have been carried out using local grid refinements. The fluid in these calculations is assumed to be compressible and its viscosity-pressure behavior is described by either the Roelands equation, or the Barus equation. The ratio between the calculated minimum film thickness and the central value varied with the parameters governing the problem, but for low loads, a value of 3/4 was obtained.

    Original languageEnglish
    Pages (from-to)503-507
    Number of pages5
    JournalAmerican Society of Mechanical Engineers. Paper
    Volume110
    Issue number3
    DOIs
    Publication statusPublished - 1 Dec 1987
    EventASLE/ASME Tribology Conference 1987 - San Antonio, United States
    Duration: 5 Oct 19878 Oct 1987

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