Evans, H. P. ![]() ![]() ![]() |
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Abstract
The paper briefly reviews Duncan Dowson's ground-breaking contribution to the theory of elastohydrodynamic lubrication in relation to the understanding of lubrication of gear tooth contacts. His early work with Higginson on numerical modelling of elastohydrodynamic lubrication finally explained how gears can operate successfully, and avoid wear, due to the generation of a stiff, protective oil film. The resulting minimum film thickness equation stands as a reliable reference formula for calculations in gear design standards. The paper includes examples of how elastohydrodynamic lubrication theory has been developed by the present authors and their co-workers, and applied to aid the design of engineering components such as worm gears, thrust rims and profile-modified helical gears. Also included is its extension to include the important effects of surface roughness at the asperity level (micro-elastohydrodynamic lubrication) and its relevance to the current, troublesome problem of micropitting.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Engineering |
Publisher: | Professional Engineering Publishing (Institution of Mechanical Engineers) |
ISSN: | 1350-6501 |
Date of First Compliant Deposit: | 10 January 2022 |
Date of Acceptance: | 12 September 2021 |
Last Modified: | 07 Nov 2023 21:24 |
URI: | https://orca.cardiff.ac.uk/id/eprint/146066 |
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