 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13217 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8152
|
| In English (Mech. Solids): | | 5065 |
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| << Previous article | Volume 60, Issue 2 / 2025 | Next article >> |
| Guang Li, Junhui Zhang, Yangcheng Zhang, Yongliang Li, and Yan Wang, "Nonlinear Dynamic Behavior of Faulty Planetary Gear System," Mech. Solids. 60 (2), 1314-1328 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
2 |
Pages |
1314-1328 |
| DOI |
10.1134/S0025654425600461 |
| Title |
Nonlinear Dynamic Behavior of Faulty Planetary Gear System |
| Author(s) |
Guang Li (Beijing Satellite Manufacturing Factory, Beijing, 100094 China, liguang8384@163.com)
Junhui Zhang (Beijing Satellite Manufacturing Factory, Beijing, 100094 China, 15313532565@163.com)
Yangcheng Zhang (Beijing Satellite Manufacturing Factory, Beijing, 100094 China, 782962200@163.com)
Yongliang Li (Beijing Satellite Manufacturing Factory, Beijing, 100094 China, lyliang925@163.com)
Yan Wang (Beijing Satellite Manufacturing Factory, Beijing, 100094 China, 345929552@qq.com) |
| Abstract |
The nonlinear dynamic behavior of the planetary gear system will be altered as the gear failure occurs. Tooth root crack are among the most prevalent forms of gear failures, leading to a degradation in meshing stiffness and consequently having a substantial impact on the nonlinear dynamic
characteristics of the system. In this paper, a comprehensive dynamic model of a planetary gear system
with tooth root crack is established to investigate the nonlinear dynamic behavior of the system in a
faulty state. Firstly, considering the elastoplastic deformation of the cracked gear tooth and combining
it with the potential energy method, we derive an accurate meshing stiffness for the gear pair. Secondly, by introducing time-varying tooth backlash, time-varying meshing stiffness, damping, and
manufacturing errors, we establish a nonlinear dynamic model for the planetary gear system. Finally,
we compare the global bifurcation characteristics between a healthy system and a faulty one under different excitation frequencies and tooth backlash to reveal the path of the system emerging into chaos.
The results demonstrate that faulted planetary gear systems are more prone to enter chaotic states with
nonlinear excitation parameters. This research can offer a robust theoretical framework for the design and fault diagnosis of gearboxes. |
| Keywords |
faulty planetary gear system, time-varying meshing stiffness, nonlinear dynamic behavior, bifurcation, chaos |
| Received |
27 January 2025 | Revised |
10 March 2025 | Accepted |
12 March 2025 |
| Link to Fulltext |
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