• Title/Summary/Keyword: wind turbine noise

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Analysis of Resonance for Drive-train in Wind Turbine (풍력발전기 드라이브트레인 공진 해석)

  • Leem, Sang-Hyuck;Park, Sun-Ho;Bang, Jo-Hyug;Chung, Chin-Wha;Ryu, Ji-Yune
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.27 no.1
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    • pp.20-27
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    • 2017

  • This study investigated the problems in current practice of drive-train resonance analysis procedure and suggested solutions. The first problem is the resonance occurrence at the un-identified resonance point by the current practice, as for a solution the force spectrum analysis for each critical force transmitting component was suggested. The second one is the inaccurate estimation of potential resonance point in eigenfrequency analysis because of the non-consideration about the eigenfrequency dependency on rotor-speed, the fine linearization at each rotor speed point all over operational range was proposed to account for the affection. Lastly the insufficient time for resonance activation under run-up simulation condition was recognized as a problem in resonance load increasing analysis, as an alternative, steady state condition was suggested to estimate the maximum load increasing level.

  • https://doi.org/10.5050/KSNVE.2017.27.1.020 인용 PDF KSCI