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Analysis of vibration characteristics of gear system during start-stop process
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Wenbing TU1, Dengliang HU1, Hao WANG1, Chenlu LIU1, Zheng CAO2
Journal of Mechanical Strength | 2025, 47(6) : 1 - 10
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Journal of Mechanical Strength | 2025, 47(6): 1-10
• Vibration·Noise·Monitoring·Diagnosis •
Analysis of vibration characteristics of gear system during start-stop process
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Wenbing TU1, Dengliang HU1, Hao WANG1, Chenlu LIU1, Zheng CAO2
Affiliations
  • 1.School of Mechatronic and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, China
  • 2.School of Electrical Engineering and Automation, Anhui University, Hefei 230601, China
Published: 2025-06-15 doi: 10.16579/j.issn.1001.9669.2025.06.001
Outline
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When the gear system starts or stops in non-stationary working conditions, a sharp change of the speed can cause it to exhibit complex vibration characteristics which has a significant impact on the performance and lifespan of the gear. Considering the influence of time-varying meshing stiffness, backlash and gear meshing error, a dynamics model of spur gear system was established. The influence of external load and angular acceleration on the vibration characteristics of the start-stop process was studied. At the same time, the time-frequency analysis of the non-stationary vibration signal of the gear system was carried out by using the short-time Fourier transform. The results show that increasing the load and angular acceleration during the start and stop processes will exacerbate the degree of vibration and impact of the gear pair, and both will make the unstable motion process in the early start period end earlier, and the unstable motion process in the late stop period appear later, but the impact components in the late start period (the early stop period) will increase (decrease). In the frequency domain, increasing the external load will enhance the energy of the harmonic component of the gear system’s meshing frequency, but it has no effect on the fundamental energy of the meshing frequency. However, increasing the angular acceleration will enhance the energy of both the fundamental and harmonic components of the meshing frequency.

Gear system  /  Dynamics  /  Start-stop process  /  Short-time Fourier transform  /  Vibration characteristic
Wenbing TU, Dengliang HU, Hao WANG, Chenlu LIU, Zheng CAO. Analysis of vibration characteristics of gear system during start-stop process[J]. Journal of Mechanical Strength, 2025 , 47 (6) : 1 -10 . DOI: 10.16579/j.issn.1001.9669.2025.06.001
Funding
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  • National Natural Science Foundation of China(51965018)
  • Education Department Science and Technology Project of Jiangxi Province(GJJ2200603)
  • Natural Science Foundation of Anhui Province(2108085QE224)
Appendix
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Year 2025 volume 47 Issue 6
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.06.001
  • Receive Date：2023-11-05
  • Online Date：2026-03-18
  • Published：2025-06-15
Article Data
Affiliations
History
  • Received：2023-11-05
  • Revised：2023-12-03
Funding
National Natural Science Foundation of China(51965018)
Education Department Science and Technology Project of Jiangxi Province(GJJ2200603)
Natural Science Foundation of Anhui Province(2108085QE224)
Affiliations
    1.School of Mechatronic and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, China
    2.School of Electrical Engineering and Automation, Anhui University, Hefei 230601, China

Corresponding:

CAO Zheng, E-mail：
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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