Analysis of micro-elastohydrodynamic lubrication and surface fatigue in gear micropitting tests

Evans, Henry Peredur ORCID: https://orcid.org/0000-0002-6989-0190, Snidle, Raymond Walter ORCID: https://orcid.org/0000-0001-9333-7195 and Sharif, Khairi 2011. Analysis of micro-elastohydrodynamic lubrication and surface fatigue in gear micropitting tests. Presented at: ASME 2011 International Design Engineering Technical Conferences (IDETC), Washington, D. C., USA, 29-31 August 2011. ASME Conference Proceedings: Volume 8: 11th International Power Transmission and Gearing Conference; 13th International Conference on Advanced Vehicle and Tire Technologies. ASME, pp. 585-591. 10.1115/DETC2011-47714

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Abstract

The paper describes results obtained from the micro-elastohydrodynamic lubrication (micro-EHL) modelling of the gear tooth contacts used in micropitting tests together with contact fatigue and damage accumulation analysis of the surfaces involved. Tooth surface profiles were acquired from pairs of helical test gears and micro-EHL simulations were performed corresponding to surfaces that actually came into contact during the meshing cycle. Fatigue and damage accumulation analysis shows that predicted damage is concentrated close to the tooth surfaces and this strongly suggests that micropitting damage arises from fatigue at the asperity contact level.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	ASME
ISBN:	9780791854853
Last Modified:	21 Oct 2022 10:36
URI:	https://orca.cardiff.ac.uk/id/eprint/40730

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