2134/13317
Mahdi Mohammadpour
Mahdi
Mohammadpour
Stephanos Theodossiades
Stephanos
Theodossiades
Homer Rahnejat
Homer
Rahnejat
Elastohydrodynamic lubrication of hypoid gear pairs at high loads
Loughborough University
2013
Hypoid gears
Elastohydrodynamics
Tooth contact analysis
Elliptical point contact
Angled entrainment flow
Mechanical Engineering not elsewhere classified
Mechanical Engineering
2013-10-10 11:34:02
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Elastohydrodynamic_lubrication_of_hypoid_gear_pairs_at_high_loads/9576980
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.