VIBRATION CONTROL OF FLOATING OFFSHORE WIND TURBINE UNDER STOCHASTIC WIND AND WAVE LOADS USING MULTIPLE TUNED MASS DAMPER

Han Dongdong; Wang Wenhua; Li Xin

doi:10.19912/j.0254-0096.tynxb.2021-0735

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (12) : 256-264. DOI: 10.19912/j.0254-0096.tynxb.2021-0735

VIBRATION CONTROL OF FLOATING OFFSHORE WIND TURBINE UNDER STOCHASTIC WIND AND WAVE LOADS USING MULTIPLE TUNED MASS DAMPER

Han Dongdong, Wang Wenhua, Li Xin

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Abstract

Based on the theory of multi-body dynamics, the coupled analysis model named FAST-SC-MTMD of floating offshore wind turbine with multiple tuned mass damper（MTMD） is established in the recompiled FAST-SC. Taking the barge-type offshore wind turbine as research object, the parameters are designed using the recommended optimization formulas for MTMD in offshore engineering. Then, the mitigation effects of TMD and MTMD are evaluated based on the reductions of structural responses of the floating offshore wind turbine under stochastic environmental loads. It can be seen that the pitch frequency should be prior designated as the MTMD tuning frequencies and the MTMD should be mounted in the nacelle and platform, in order to mitigate the motions of the tower and floating platform effectively.

Key words

offshore wind turbines / vibration control / dynamic response / tuned mass damper / coupled dynamic analysis

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Han Dongdong, Wang Wenhua, Li Xin. VIBRATION CONTROL OF FLOATING OFFSHORE WIND TURBINE UNDER STOCHASTIC WIND AND WAVE LOADS USING MULTIPLE TUNED MASS DAMPER[J]. Acta Energiae Solaris Sinica. 2022, 43(12): 256-264 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0735

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