Spiral bevel and hypoid gears are key components widely used for transmitting significant power in various types of vehicles and engineering machineries. In reality, these gear surfaces are quite rough with three-dimensional (3D) topography that may significantly influence the lubrication formation and breakdown as well as components failures. Previous spiral bevel and hypoid gears lubrication studies, however, were limited mostly to cases under the full-film lubrication condition with smooth surfaces. In the present study, a comprehensive analysis for gearing geometry, kinematics, mixed lubrication performance, and friction and interfacial flash temperature in spiral bevel and hypoid gears is developed based on a recently developed mixed elastohydrodynamic lubrication (EHL) model that is capable of handling practical cases with 3D machined roughness under severe operating conditions and considering the effect of arbitrary entrainment angle. Obtained results from sample cases show that the simulation model developed can be used as an engineering tool for spiral bevel and hypoid gears design optimization and strength prediction.
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October 2015
Research-Article
Mixed Elastohydrodynamic Lubrication With Three-Dimensional Machined Roughness in Spiral Bevel and Hypoid Gears
Wei Pu,
Wei Pu
School of Aeronautics and Astronautics,
Sichuan University
,Chengdu 610065
, China
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Jiaxu Wang,
Jiaxu Wang
1
School of Aeronautics and Astronautics,
Sichuan University
,Chengdu 610065
, China
Research Center of Electromechanical
Transmission and Delivery Equipment,
e-mail: cquwjx@foxmail.com
Transmission and Delivery Equipment,
Chongqing University
,Chongqing 400044
, China
e-mail: cquwjx@foxmail.com
1Corresponding author.
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Rongsong Yang,
Rongsong Yang
School of Manufacturing Science
and Engineering,
and Engineering,
Sichuan University
,Chengdu 610065
, China
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Dong Zhu
Dong Zhu
School of Aeronautics and Astronautics,
Sichuan University
,Chengdu 610065
, China
Search for other works by this author on:
Wei Pu
School of Aeronautics and Astronautics,
Sichuan University
,Chengdu 610065
, China
Jiaxu Wang
School of Aeronautics and Astronautics,
Sichuan University
,Chengdu 610065
, China
Research Center of Electromechanical
Transmission and Delivery Equipment,
e-mail: cquwjx@foxmail.com
Transmission and Delivery Equipment,
Chongqing University
,Chongqing 400044
, China
e-mail: cquwjx@foxmail.com
Rongsong Yang
School of Manufacturing Science
and Engineering,
and Engineering,
Sichuan University
,Chengdu 610065
, China
Dong Zhu
School of Aeronautics and Astronautics,
Sichuan University
,Chengdu 610065
, China
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received November 9, 2014; final manuscript received March 13, 2015; published online May 6, 2015. Assoc. Editor: Xiaolan Ai.
J. Tribol. Oct 2015, 137(4): 041503 (11 pages)
Published Online: October 1, 2015
Article history
Received:
November 9, 2014
Revision Received:
March 13, 2015
Online:
May 6, 2015
Citation
Pu, W., Wang, J., Yang, R., and Zhu, D. (October 1, 2015). "Mixed Elastohydrodynamic Lubrication With Three-Dimensional Machined Roughness in Spiral Bevel and Hypoid Gears." ASME. J. Tribol. October 2015; 137(4): 041503. https://doi.org/10.1115/1.4030185
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