Experimental Results and Analytical Predictions of EHL Film Thickness

Details Experimental Results and Analytical Predictions of EHL Film Thickness Experimental Results and Analytical Predictions of EHL Film Thickness

2007-04-18

arxiv.org/abs/0704.2356v1

33rd Leeds Lyon Symposium on Tribology "Tribology at the Interface", Royaume-Uni (12/09/2006)

Physics

Classical Physics

Scientific paper

In this work, we consider several types of lubricants - including non-Newtonian fluids - that were studied under various operating conditions leading us to explore a wide range of dimensionless parameters. The experimental results are compared with predictions given by the usual analytical EHL relationships and by more recently developed models. This broad comparison conducted with particular emphasis on minimum film thickness (hm) showed a fair agreement between experimental data and a few predictions including some obtained from extended models. Commonly used elasto-hydrodynamic lubrication (EHL) models did not systematically gave accurate hm estimation, whereas minimum film thickness not only is a yield value but also serves as a key parameter in estimating lubrication regimes.

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