Coupled rotor-floater response analysis is essentially important for the design of Rotor Nacelle Assembly (RNA) and floating support structure of Floating Offshore Wind Turbine (FOWT). The authors have developed an analysis code UTWind for analysis of the coupled structural response. Blades and floater are modeled as frame structure with beam elements. Lumped mass model is use for mooring. Aerodynamic load on blade is calculated by Blade Element Momentum Theory (BEM), and hydrodynamic load is calculated by Hooft’s method, and Morison equation was modified to be applicable to cylindrical element with cross section with two axes of lines symmetry. The equations of motion of rotor, floater and mooring are solved in time domain by weak coupling algorithm. The numerical results by the code were compared with responses measured by experiment in wave and wind-and-wave coexistence field with/without blade pitch control and showed good agreement. Response by negative damping was reproduced by the code and showed good agreement with experiments.
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ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
June 9–14, 2013
Nantes, France
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5542-3
PROCEEDINGS PAPER
Development of an Analysis Code of Rotor-Floater Coupled Response of a Floating Offshore Wind Turbine Available to Purchase
Hideyuki Suzuki,
Hideyuki Suzuki
University of Tokyo, Kashiwa, Japan
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Hajime Shibata,
Hajime Shibata
University of Tokyo, Kashiwa, Japan
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Hiroyuki Fujioka,
Hiroyuki Fujioka
Nippon Steel & Sumikin Engineering Co. Ltd., Osaki, Japan
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Shinichiro Hirabayashi,
Shinichiro Hirabayashi
University of Tokyo, Kashiwa, Japan
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Kimiko Ishii,
Kimiko Ishii
University of Tokyo, Kashiwa, Japan
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Hiroki Kikuchi
Hiroki Kikuchi
University of Tokyo, Kashiwa, Japan
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Hideyuki Suzuki
University of Tokyo, Kashiwa, Japan
Hajime Shibata
University of Tokyo, Kashiwa, Japan
Hiroyuki Fujioka
Nippon Steel & Sumikin Engineering Co. Ltd., Osaki, Japan
Shinichiro Hirabayashi
University of Tokyo, Kashiwa, Japan
Kimiko Ishii
University of Tokyo, Kashiwa, Japan
Hiroki Kikuchi
University of Tokyo, Kashiwa, Japan
Paper No:
OMAE2013-10444, V008T09A026; 10 pages
Published Online:
November 26, 2013
Citation
Suzuki, H, Shibata, H, Fujioka, H, Hirabayashi, S, Ishii, K, & Kikuchi, H. "Development of an Analysis Code of Rotor-Floater Coupled Response of a Floating Offshore Wind Turbine." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 8: Ocean Renewable Energy. Nantes, France. June 9–14, 2013. V008T09A026. ASME. https://doi.org/10.1115/OMAE2013-10444
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