Dynamic Response of 6MW Spar Type Floating Offshore Wind Turbine by Experiment and Numerical Analyses
Journal article, 2020

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.

floating offshore wind turbine

dynamic responses

Spar type platform

model test



Long Meng

China Aerodynamics Research and Development Center

Shanghai Jiao Tong University

Yan Ping He

Shanghai Jiao Tong University

Yong Sheng Zhao

Shanghai Jiao Tong University

Jie Yang

Shanghai Jiao Tong University

He Yang

Texas A&M University

Zhao Long Han

Shanghai Jiao Tong University

Long Yu

Shanghai Jiao Tong University

Wengang Mao

Chalmers, Mechanics and Maritime Sciences (M2), Marine Technology

Wei kang Du

The University of Texas at Austin

China Ocean Engineering

0890-5487 (ISSN)

Vol. 34 5 608-620

Subject Categories

Aerospace Engineering

Applied Mechanics

Marine Engineering



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