 | | 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: | | 12788 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8028
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| In English (Mech. Solids): | | 4760 |
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| X. Zhang, H.W. Li, Q. Li, X.J. Niu, and W. Li, "Dynamic Characteristics Analysis of High-Speed Fixed-Axis Gear Pair with Spalling Fault for a Wind Turbine Gearbox Considering Friction and Flash Temperature," Mech. Solids. 59 (2), 1154-1179 (2024) |
| Year |
2024 |
Volume |
59 |
Number |
2 |
Pages |
1154-1179 |
| DOI |
10.1134/S0025654423602392 |
| Title |
Dynamic Characteristics Analysis of High-Speed Fixed-Axis Gear Pair with Spalling Fault for a Wind Turbine Gearbox Considering Friction and Flash Temperature |
| Author(s) |
X. Zhang (School of Aeronautics and Astronautics, Tiangong University, Tianjin, 300387 China; School of Mechanical Engineering, Tiangong University, Tianjin, 300387 China)
H.W. Li (School of Mechanical Engineering, Tiangong University, Tianjin, 300387 China)
Q. Li (School of Aeronautics and Astronautics, Tiangong University, Tianjin, 300387 China)
X.J. Niu (School of Mechanical Engineering, Tiangong University, Tianjin, 300387 China, anplw@163.com)
W. Li (School of Aeronautics and Astronautics, Tiangong University, Tianjin, 300387 China) |
| Abstract |
As one of the main forms of gear failure, tooth spalling makes the pit occur on the tooth surface and causes the gear not to mesh normally. Friction, an important factor in gear transmission, not
only exacerbates the system vibration but also leads to the flash temperature on the tooth surface, and
then the flash temperature reduces the gear stiffness. Hence, this paper reveals the relationship
between gear spalling and nonlinear dynamics for a wind turbine gearbox considering friction and
flash temperature. The friction force and flash temperature are calculated using Coulomb’s law and
Blok’s flash temperature theory, respectively. The time-varying flash temperature stiffness and meshing stiffness of gears with spalling are separately obtained based on Hertz’s theory and potential energy
method. The torsional dynamic model of the gearbox with high-speed driving gear spalling is established to study the influences of friction, flash temperature, and spalling on the dynamic behaviors,
and the frequency spectrums of simulation and experiment of gear spalling are compared. The results
indicate that the gear spalling and flash temperature make the comprehensive time-varying meshing
stiffness decrease, and then affect the dynamic characteristics of the system in various friction states,
especially dry friction. The friction and spalling change the chaotic motion interval in the high-frequency region, but the flash temperature affects the low-frequency region greatly and increases the
quasi-periodic interval. The research provides significant guidance for monitoring the spalling fault of
multi-stage gear transmission systems. |
| Keywords |
wind turbine gearbox, spalling fault, friction, flash temperature |
| Received |
22 November 2023 | Revised |
07 May 2024 | Accepted |
07 May 2024 |
| Link to Fulltext |
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