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Title: Transient mixed non-Newtonian thermo-elastohydrodynamics of vehicle differential hypoid gears with starved partial counter-flow inlet boundary
Authors: Mohammadpour, Mahdi
Theodossiades, Stephanos
Rahnejat, Homer
Keywords: Vehicle differential
Hypoid gears
Dynamic transmission error
Elstohydrodynamic lubrication
Zero reverse flow inlet boundary
Starvation
Non-Newtonian shear
Issue Date: 2014
Publisher: Sage Publications © IMechE
Citation: MOHAMMADPOUR, M., THEODOSSIADES, S. and RAHNEJAT, H., 2014. Transient mixed non-Newtonian thermo-elastohydrodynamics of vehicle differential hypoid gears with starved partial counter-flow inlet boundary. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 228 (10), pp. 1159-1173.
Abstract: The paper presents solutions for transient mixed thermo-elastohydrodynamics of meshing differential hypoid gears of a vehicle under low speed urban driving and high speed cruising. Realistic gear meshing conditions, such as contact load including inertial effects are used, in line with engine power torque and wheel traction. This constitutes simultaneous solution of gear pair dynamics, non-Newtonian elastohydrodynamics as well as vehicle longitudinal inertial dynamics, an approach not hitherto reported in the literature. The important link between contact tribology and vehicle gearing dynamics is highlighted. It is also shown that gear teeth pairs are subjected to a starved inlet boundary condition, represented by realistic inlet flow analysis. These conditions lead to the formation of a thin lubricant film with non-Newtonian shear and with modest boundary interactions.
Description: This article was published in the serial, Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology [Sage Publications © IMechE]. The definitive version is available at: http://dx.doi.org/10.1177/1350650114537805
Version: Accepted for publication
DOI: 10.1177/1350650114537805
URI: https://dspace.lboro.ac.uk/2134/15067
Publisher Link: http://dx.doi.org/10.1177/1350650114537805
ISSN: 1350-6501
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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