Holmes, Mark James Andrew, Evans, Henry Peredur  ORCID: https://orcid.org/0000-0002-6989-0190, Hughes, Timothy Giffin and Snidle, Raymond Walter ORCID: https://orcid.org/0000-0001-9333-7195
2003.
Transient elastohydrodynamic point contact analysis using a new coupled differential deflection method. Part 1: theory and validation.
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology
217
(4)
, pp. 289-304.
10.1243/135065003768618641
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Abstract
The paper presents a transient analysis technique for point contact elastohydrodynamic (EHL) lubrication problems using coupled elastic and hydrodynamic equations. Full coupling is made possible by use of a novel differential deflection formulation. The way in which the differential deflection is incorporated into the overall solution method for a point contact is discussed. A range of spatial and temporal discretization methods are incorporated and compared. The method is validated under transient conditions by a detailed comparison with published work produced using a different, independent method incorporating a moving roughness feature. A comparison of the results with different discretization methods leads to the conclusion that spatial central differencing with a Crank-Nicolson temporal discretization is the most effective finite difference scheme, and this is generally equivalent to the finite element discretization given in detail in the paper. A comparison of the results produced for moving rough surfaces suggests that the finite element formulation is preferred.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Uncontrolled Keywords: | Point contact EHL ; Non-Newtonian ; Transient ; Coupled method ; Differential deflection |
| ISSN: | 1350-6501 |
| Last Modified: | 07 May 2023 13:53 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/2012 |
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