Comparison of transient EHL calculations with shut-down experiments

Holmes, M. J., Evans, Henry Peredur ORCID: https://orcid.org/0000-0002-6989-0190 and Snidle, Raymond Walter ORCID: https://orcid.org/0000-0001-9333-7195 2003. Comparison of transient EHL calculations with shut-down experiments. Presented at: 29th Leeds-Lyon Symposium on Tribology, Leeds, UK, 3-6 September 2002. Published in: Dowson, D., Priest, M., Dalmaz, G. and Lubrecht, A. A. eds. Tribological research and design for engineering systems :proceedings of the 29th Leeds-Lyon Symposium on Tribology held at Bodington Hall, University of Leeds, UK 3rd - 6th September, 2002. Tribology Series (41) London: Elsevier, pp. 91-99. 10.1016/S0167-8922(03)80122-0

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Abstract

The paper presents numerical results for the elastohydrodynamic lubrication of point contacts where the entrainment velocity is reduced with time. The cases considered correspond to experimental work presented by Glovnea and Spikes [1] for the case where entrainment is reduced to zero with constant deceleration. The experiments modelled involve simple sliding of a steel ball on a glass disk and, due to the poor conductivity of the stationary glass component and the sliding configuration, the temperature is not known with accuracy. The steady state characteristics of the test case, detailed in the experimental result for the beginning of the transient behaviour, are therefore used to select appropriate values of the lubricant parameters for incorporating in a transient numerical analysis of the test conditions. The paper compares the numerical results obtained using a differential deflection point contact transient analysis with the detailed published experimental film thickness measurements presented by Glovnea et al, and good correlation is shown.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TJ Mechanical engineering and machinery
Uncontrolled Keywords:	elastohydrodynamic; transient; non-Newtonian; shut-down
Publisher:	Elsevier
ISBN:	9780444512437
Last Modified:	21 Oct 2022 10:35
URI:	https://orca.cardiff.ac.uk/id/eprint/40664

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