Non-Newtonian thermal elastohydrodynamic lubrication in point contact for a crowned herringbone gear drive

被引：33
作者：
Zhou, Changjiang [1 ,2 ]
Pan, Lijun [1 ]
Xu, Jing [1 ]
Han, Xu [1 ]
机构：
[1] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China
[2] Cent South Univ, State Key Lab High Performance Complex Mfg, Changsha 410083, Hunan, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2017年 / 116卷
基金：
美国国家科学基金会;
关键词：
Thermal EHL; Point contact; Crowned herringbone gear; Parameter effect; SURFACE-ROUGHNESS; FILM THICKNESS; HELICAL GEARS; LOAD; EHL;
D O I：
10.1016/j.triboint.2017.08.007
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Non-Newtonian thermal elastohydrodynamic lubrication (EHL) theory in point contact which deals with the lubrication for a crowned herringbone gear drive is developed, combined with the verified numerical procedure. Effects of the major geometry and working parameters on the lubrication performance (the pressure, film thickness, temperature rise and shear stress), are investigated. The results show that the enlargement of normal module, normal pressure angle, helix angel, and transmission ratio is beneficial for pitting resistance, and that the excessive crowned can debase the contact fatigue strength. It is indicated that severe thermal deformation and scuffing are prone to generation under large load and speed.
引用
收藏
页码：470 / 481
页数：12
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