Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics

Predictions are provided for mixed elastohydrodynamic conditions of meshing hyoid gear teeth pairs of light truck differentials. Under transient conditions, pertaining to vehicle cruising or in urban driving, the lubricant is subjected to non-Newtonian traction. The meshing teeth are subjected to co...

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Main Authors:	Gajarajan Sivayogan, Ramin Rahmani, Homer Rahnejat
Format:	Default Article
Published:	2021
Subjects:	Mechanical engineering not elsewhere classified Vehicular differential Hypoid Gears Transient mixed elastohydrodynamics Non-Newtonian shear Mechanical Engineering
Online Access:	https://hdl.handle.net/2134/17212022.v1
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spelling	rr-article-172120222021-12-10T00:00:00Z Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics Gajarajan Sivayogan (2546056) Ramin Rahmani (1250418) Homer Rahnejat (1247550) Mechanical engineering not elsewhere classified Vehicular differential Hypoid Gears Transient mixed elastohydrodynamics Non-Newtonian shear Mechanical Engineering Predictions are provided for mixed elastohydrodynamic conditions of meshing hyoid gear teeth pairs of light truck differentials. Under transient conditions, pertaining to vehicle cruising or in urban driving, the lubricant is subjected to non-Newtonian traction. The meshing teeth are subjected to complex kinematics, comprising rolling, sliding and squeeze film motions. Furthermore, instantaneously varying angled lubricant flow into the contact constitutes a precession of contact footprint, further complicating the prevailing conditions. The inclusion of all these interacting kinematics shows that the lubricant film thickness, shear characteristics and transmission efficiency are significantly affected by the ensuing transience. This cannot be adequately represented by the usual quasi-steady analyses. The in-depth detailed analysis of the hypoid gear pairs of vehicular differentials constitutes the main contribution of the paper. 2021-12-10T00:00:00Z Text Journal contribution 2134/17212022.v1 https://figshare.com/articles/journal_contribution/Transient_non-Newtonian_elastohydrodynamics_of_rough_meshing_hypoid_gear_teeth_subjected_to_complex_contact_kinematics/17212022 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified Vehicular differential Hypoid Gears Transient mixed elastohydrodynamics Non-Newtonian shear Mechanical Engineering
spellingShingle	Mechanical engineering not elsewhere classified Vehicular differential Hypoid Gears Transient mixed elastohydrodynamics Non-Newtonian shear Mechanical Engineering Gajarajan Sivayogan Ramin Rahmani Homer Rahnejat Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics
description	Predictions are provided for mixed elastohydrodynamic conditions of meshing hyoid gear teeth pairs of light truck differentials. Under transient conditions, pertaining to vehicle cruising or in urban driving, the lubricant is subjected to non-Newtonian traction. The meshing teeth are subjected to complex kinematics, comprising rolling, sliding and squeeze film motions. Furthermore, instantaneously varying angled lubricant flow into the contact constitutes a precession of contact footprint, further complicating the prevailing conditions. The inclusion of all these interacting kinematics shows that the lubricant film thickness, shear characteristics and transmission efficiency are significantly affected by the ensuing transience. This cannot be adequately represented by the usual quasi-steady analyses. The in-depth detailed analysis of the hypoid gear pairs of vehicular differentials constitutes the main contribution of the paper.
format	Default Article
author	Gajarajan Sivayogan Ramin Rahmani Homer Rahnejat
author_facet	Gajarajan Sivayogan Ramin Rahmani Homer Rahnejat
author_sort	Gajarajan Sivayogan (2546056)
title	Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics
title_short	Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics
title_full	Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics
title_fullStr	Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics
title_full_unstemmed	Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics
title_sort	transient non-newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics
publishDate	2021
url	https://hdl.handle.net/2134/17212022.v1
_version_	1796461360779886592

Transient non-Newtonian elastohydrodynamics of rough meshing hypoid gear teeth subjected to complex contact kinematics

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