Prediction of film thickness decay in starved elasto-hydrodynamically lubricated contacts using a thin layer flow model

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Abstract

The prediction of bearing life and performance requires detailed knowledge of the behaviour of elasto-hydrodynamically lubricated (EHL) contacts under varying conditions of load and lubricant supply during many load cycles. Considering starved lubrication, a model is developed that predicts the change of the supply layer to the EHL contact. As the film thickness inside a starved EHL contact is determined by the thickness and distribution of the supply layer, this model can be used to predict the film thickness decay. A formula for the central film thickness decay is obtained for the long-term operation of circular or elliptical contacts under starved conditions. The model is validated experimentally.
Original languageUndefined
Pages (from-to)541-552
Number of pages12
JournalProceedings of the Institution of Mechanical Engineers. Part J: Journal of engineering tribology
Volume223
Issue number3
DOIs
Publication statusPublished - 2009

Keywords

  • METIS-257352
  • IR-98870

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