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Influence of heave plates on the dynamics of a floating offshore wind turbine in waves

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Abstract

This paper presents an analysis of the effects of heave plates with large skirts on the dynamics of a semi-submersible FOWT in waves. The analysis was based on a preliminary hull configuration envisaged for Brazilian waters. A numerical model based on linear frequency-domain hydrodynamics evaluated with panel methods was used for predicting the effects of the heave plates on the natural periods of motions. The predictions were compared to the results of model tests conducted in a wave basin involving ten different configurations of plate diameters and skirt heights. The experimental results confirmed the validity of the numerical predictions and provided quantitative results regarding the variations in viscous damping associated with the dimensions of the heave plates. The data will be used for future calibration of a parametric model for hull geometry optimization.

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Acknowledgements

This work was developed in the context of a Brazil-Japan collaborative research project financed by the Brazilian Coordination for the Improvement of Higher Education Personnel (CAPES) and the Japan Society for Promotion of Science (JSPS). Professors Alexandre N. Simos and Guilherme R. Franzini acknowledge their respective Research Grants from CNPq. Lucas H. S. Carmo also acknowledges CAPES for his PhD grant (Finance code-001). Mateus H. O. Candido thanks the Office of the Naval Research-Global (ONR-G) for his undergraduate scholarship (NICOP Award N62909-16-1-2066). Rodolfo T. Gonçalves thanks the JSPS for the grant as a JSPS International Research Fellow (P18355, Graduate School of Engineering, The University of Tokyo) and also KAKENHI Grant Number JP18F18355. The Japanese team also thank the Japan Society of Naval Architects and Ocean Engineers (JASNAOE) for the opportunity and support given throughout the project “Brazil-Japan collaborative research program”. The authors thank the student Matheus A. Marques (Federal University of Pernambuco, Recife, PE, Brazil) for his help during the image developments.

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Authors and Affiliations

  1. TPN, Numerical Offshore Tank Laboratory, Department of Naval Architecture and Ocean Engineering, Escola Politécnica, University of São Paulo, São Paulo, SP, Brazil

    Pedro C. Mello, Raíza O. P. da Silva, Matheus H. O. Candido, Lucas Henrique S. do Carmo, Izabela F. Alberto & Alexandre N. Simos

  2. Technomar, Engenharia Oceânica, São Paulo, SP, Brazil

    Edgard B. Malta

  3. LMO, Offshore Mechanics Laboratory, Department of Mechanical Engineering, Escola Politécnica, University of São Paulo, São Paulo, SP, Brazil

    Guilherme R. Franzini

  4. OSPL, Ocean Space Planning Laboratory, Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8656, Japan

    Hideyuki Suzuki & Rodolfo T. Gonçalves

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  1. Pedro C. Mello
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  2. Edgard B. Malta
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  3. Raíza O. P. da Silva
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  4. Matheus H. O. Candido
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  5. Lucas Henrique S. do Carmo
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  6. Izabela F. Alberto
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  7. Guilherme R. Franzini
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  8. Alexandre N. Simos
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  9. Hideyuki Suzuki
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  10. Rodolfo T. Gonçalves
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Correspondence to Rodolfo T. Gonçalves.

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Mello, P.C., Malta, E.B., da Silva, R.O.P. et al. Influence of heave plates on the dynamics of a floating offshore wind turbine in waves. J Mar Sci Technol 26, 190–200 (2021). https://doi.org/10.1007/s00773-020-00728-3

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  • DOI: https://doi.org/10.1007/s00773-020-00728-3

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