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Dynamic analysis of a megawatt wind turbine drive train

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Abstract

The dynamic performance of a wind turbine drive train significantly influences the operation of an entire machine. In this work, a megawatt wind turbine drive train is subject to theoretical and experimental dynamic analysis. The method of rigid-flexible coupling multibody dynamics was applied to develop a dynamic model of the entire drive train. This model was then used to study the natural characteristics of the system. The blades, hub, main shaft, and speed-up gearbox in the dynamic model were modeled as flexible bodies. The potential resonances of the system were detected through Campbell and modal energy distribution analyses. Theoretical results show that the first-order natural frequency of the system is approximately 1.72 Hz. This frequency represents a torsional vibration mode, Moreover, resonances are not observed within the normal operating speed range of the drive train. An experimental remote real-time system was developed to monitor the torsional vibration of the drive train. This vibration was used to measure the torsional vibration of the system overall. The experimental results are consistent with the theoretical results.

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Authors and Affiliations

  1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400030, China

    Caichao Zhu, Shuang Chen, Chaosheng Song & Huaiju Liu

  2. Chongqing Wangjiang Industry Co., LTD, Chongqing, 400071, China

    Houyi Bai & Fei Ma

Authors
  1. Caichao Zhu
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  2. Shuang Chen
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  3. Chaosheng Song
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  4. Huaiju Liu
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  5. Houyi Bai
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  6. Fei Ma
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Corresponding author

Correspondence to Caichao Zhu.

Additional information

Recommended by Associate Editor Cheolung Cheong

Caichao Zhu is currently a professor at the State Key Laboratory of Mechanical Transmission, Chongqing University, China. His research interests include the dynamics of gear systems, the tribology of mechanical transmissions, and the design of accurate transmission, among others. He has published more than 100 technical papers in international journals.

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Zhu, C., Chen, S., Song, C. et al. Dynamic analysis of a megawatt wind turbine drive train. J Mech Sci Technol 29, 1913–1919 (2015). https://doi.org/10.1007/s12206-015-0413-6

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  • DOI: https://doi.org/10.1007/s12206-015-0413-6

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