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An integrated structural strength analysis method for Spar type floating wind turbine

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Abstract

An integrated structural strength analysis method for a Spar type floating wind turbine is proposed in this paper, and technical issues related to turbine structure modeling and stress combination are also addressed. The NREL-5MW “Hywind” Spar type wind turbine is adopted as study object. Time-domain dynamic coupled simulations are performed by a fully-coupled aero-hydro-servo-elastic tool, FAST, on the purpose of obtaining the dynamic characteristics of the floating wind turbine, and determining parameters for design load cases of finite element calculation. Then design load cases are identified, and finite element analyses are performed for these design load cases. The structural stresses due to wave-induced loads and wind-induced loads are calculated, and then combined to assess the structural strength of the floating wind turbine. The feasibility of the proposed structural strength analysis method for floating wind turbines is then validated.

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Authors and Affiliations

  1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    Zhi-qiang Hu  (胡志强)

  2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai, 200240, China

    Zhi-qiang Hu  (胡志强)

  3. China National Offshore Oil Corporation Research Institute, Beijing, 100028, China

    Yi Liu  (刘 毅)

  4. COTEC Offshore Engineering Solution, Houston, Texas, 77079, USA

    Jin Wang  (王 晋)

Authors
  1. Zhi-qiang Hu  (胡志强)
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  2. Yi Liu  (刘 毅)
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  3. Jin Wang  (王 晋)
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Corresponding author

Correspondence to Zhi-qiang Hu  (胡志强).

Additional information

This work was financially supported by the National Natural Science Foundation of China (Grant No. 51239007).

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Hu, Zq., Liu, Y. & Wang, J. An integrated structural strength analysis method for Spar type floating wind turbine. China Ocean Eng 30, 217–230 (2016). https://doi.org/10.1007/s13344-016-0013-y

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  • DOI: https://doi.org/10.1007/s13344-016-0013-y

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