Dynamic Anti-wear Design and Analysis for Hypoid Gears with Ease-off Flank Modification

被引：0
|
作者：
Jiang J. [1 ,2 ]
Liu Z. [1 ,2 ]
Liu H. [1 ,2 ]
机构：
[1] School of Automotive, Chang'an University, Xi'an
[2] Key Laboratory of Automotive Transportation Safety Techniques of Ministry of Transport, Chang'an University, Xi'an
来源：
| 1600年 / Chinese Mechanical Engineering Society卷 / 57期
关键词：
Ease-off modified; Hypoid gear; LTCA; Tooth dynamic wear; Vibration;
D O I：
10.3901/JME.2021.19.155
中图分类号：
学科分类号：
摘要：
Methods of ease-off flank modification are developed to improve the dynamic performances and reduce tooth wear for hypoid gears. Firstly, the modified pinion are expressed by a sum of two vector of conjugate tooth of the gear and its normal ease-off modification represented by functions of both profile modification curves and predesigned transmission error. Secondly, a numerical method of loaded tooth contact analysis with wear(WLTCA) is proposed, and its principle are that: meshing stiffness and static loads are obtained based on loaded tooth contact analysis(LTCA), and then based on which the dynamic loads are achieved by dynamic analysis, and then tooth wear depth are acquired based on Archard wear formula, and then the wear depth of simultaneous meshing tooth pairs are added to the initial clearances which provided with accurate parameters for the next LTCA, and then the both wear times and depths are calculated by repeating the above steps. Thirdly, the best ease-off deviations are determined by minimizing mean square value of normal vibration and tooth wear depths based on optimization algorithm. Finally, coupling action between tooth wear and dynamic responses are revealed. Besides, results show that the best ease-off tooth is mainly characterized by profile modification, and reduces the wear and improves the dynamic response. The approach fully considers the coupling of dynamic responses, tooth surface modification and wear, and provides with a theoretical reference of dynamic anti-wear and vibration reduction for the high performances hypoid gears. © 2021 Journal of Mechanical Engineering.
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页码：155 / 164
页数：9
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