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Dynamic Response of 6MW Spar Type Floating Offshore Wind Turbine by Experiment and Numerical Analyses

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Abstract

The floating offshore wind turbine (FOWT) is widely used for harvesting marine wind energy. Its dynamic responses under offshore wind and wave environment provide essential reference for the design and installation. In this study, the dynamic responses of a 6MW Spar type FOWT designed for the water depth of 100 m are investigated by means of the wave tank experiment and numerical analysis. A scaled model is manufactured for the experiment at a ratio of 65.3, while the numerical model is constructed on the open-source platform FAST (Fatigue, Aerodynamics, Structures, and Turbulence). Still water tests, wind-induced only tests, wave-induced only tests and combined wind-wave-current tests are all conducted experimentally and numerically. The accuracy of the experimental set-up as well as the loading generation has been verified. Surge, pitch and heave motions are selected to analyze and the numerical results agree well with the experimental values. Even though results obtained by using the FOWT calculation model established in FAST software show some deviations from the test results, the trends are always consistent. Both experimental and numerical studies demonstrate that they are reliable for the designed 6MW Spar type FOWT.

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Authors and Affiliations

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

    Long Meng, Yan-ping He, Yong-sheng Zhao, Jie Yang, Zhao-long Han & Long Yu

  2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE), Shanghai Jiao Tong University, Shanghai, 200240, China

    Long Meng, Yan-ping He, Yong-sheng Zhao, Jie Yang & Long Yu

  3. School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    Long Meng, Yan-ping He, Yong-sheng Zhao, Jie Yang, Zhao-long Han & Long Yu

  4. China Aerodynamics Research and Development Center, Mianyang, 621000, China

    Long Meng

  5. Ocean Engineering Department, Texas A&M University, College Station, TX, 77843, USA

    He Yang

  6. Department of mechanics and Maritime Sciences, Chalmers University of Technology, 41296, Gothenburg, Sweden

    Wen-gang Mao

  7. Ocean Engineering Group, Department of Civil, Architecture and Environmental Engineering, University of Texas at Austin, Austin, Texas, TX, 78712, USA

    Wei-kang Du

Authors
  1. Long Meng
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  5. He Yang
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  7. Long Yu
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  8. Wen-gang Mao
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  9. Wei-kang Du
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Corresponding authors

Correspondence to Yan-ping He or Yong-sheng Zhao.

Additional information

Foundation item: This research was financially supported by the National Natural Science Foundation of China (Grant Nos. 51809170 and 51879160), the National Key R&D Program of China (Grant No. 2019YFB1503700), Program for Intergovernmental International S&T Cooperation Projects of Shanghai Municipality (Grant Nos.19160713600 and 18160744000), and the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (Grant Nos. ZXDF010037 and ZXDF010040).

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Meng, L., He, Yp., Zhao, Ys. et al. Dynamic Response of 6MW Spar Type Floating Offshore Wind Turbine by Experiment and Numerical Analyses. China Ocean Eng 34, 608–620 (2020). https://doi.org/10.1007/s13344-020-0055-z

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  • DOI: https://doi.org/10.1007/s13344-020-0055-z

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