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Title: Elastohydrodynamic lubrication of hypoid gear pairs at high loads
Authors: Mohammadpour, Mahdi
Theodossiades, Stephanos
Rahnejat, Homer
Keywords: Hypoid gears
Elastohydrodynamics
Tooth contact analysis
Elliptical point contact
Angled entrainment flow
Issue Date: 2012
Publisher: © Sage
Citation: MOHAMMADPOUR, M., THEODOSSIADES, S. and RAHNEJAT, H., 2012. Elastohydrodynamic lubrication of hypoid gear pairs at high loads. Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, 226 (J3), pp.183-198.
Abstract: Differential hypoid gear pairs have been the mechanism of choice for high torque capacity final drives in all forms of vehicles, at least since mid 19th century. Transmission efficiency as well noise and vibration concerns require combined elastohydrodynamic and tooth contact analysis of hypoid gear teeth pairs through mesh. Although such analyses have been reported for general cases of elliptical point contact conjunctions with angled flow entrainment, they do not comply with the prevailing load and kinematic conditions in differential gears. In particular, teeth pair contacts are subject to significant loads of order of several kN requiring solution to the EHL problem at such high loads. The current analysis reports solutions for rolling and sliding elastohydrodynamics of hypoid gear teeth pairs at realistic drive torques, not hitherto reported in literature.
Description: This article was accepted for publication in the journal Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology. The definitive version can be found at: http://dx.doi.org/10.1177/1350650111431027
Version: Accepted for publication
DOI: 10.1177/1350650111431027
URI: https://dspace.lboro.ac.uk/2134/13317
Publisher Link: http://dx.doi.org/10.1177/1350650111431027
ISSN: 1350-6501
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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