Dynamic Behavior of a Flexible Multi-Column FOWT in Regular Waves
A tank experiment using a flexible multi-column floating offshore wind turbine (FOWT) model in regular waves was carried out to clarify the floater elastic response and its influence on the floater motion. The model motion response from the experiment was compared with the numerical simulations by N...
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| Format: | Article |
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MDPI AG
2021-01-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/2/124 |
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| author | Taisuke Takata Mayuko Takaoka Rodolfo T. Gonçalves Hidetaka Houtani Yasuo Yoshimura Kentaro Hara Sho Oh Raúl Dotta Edgard B. Malta Kazuhiro Iijima Hideyuki Suzuki |
| author_facet | Taisuke Takata Mayuko Takaoka Rodolfo T. Gonçalves Hidetaka Houtani Yasuo Yoshimura Kentaro Hara Sho Oh Raúl Dotta Edgard B. Malta Kazuhiro Iijima Hideyuki Suzuki |
| author_sort | Taisuke Takata |
| collection | DOAJ |
| description | A tank experiment using a flexible multi-column floating offshore wind turbine (FOWT) model in regular waves was carried out to clarify the floater elastic response and its influence on the floater motion. The model motion response from the experiment was compared with the numerical simulations by NK-UTWind and WAMIT codes. The dynamic elastic deformation of the model was also compared between the experiment and NK-UTWind. The experiment observed significant elastic deformation for the decks and columns of the model around the wave period corresponding to the natural period of the structural vibration. Furthermore, comparing the heave response amplitude operator (RAO) between experiments and numerical simulations, a small peak appeared around this period in the experiment and NK-UTWind simulation instead of WAMIT simulation. These results indicated that dynamic elastic deformation affected the heave response of the model. The change in the model rigidity revealed that such elastic deformation could affect the motion response statistics in an actual sea condition if the peak period of the onsite wave spectrum is close to the floater natural vibration period. These investigations indicated the importance of considering the elastic behavior of a FOWT at its design stage. |
| first_indexed | 2024-03-09T03:30:07Z |
| format | Article |
| id | doaj.art-033e71b419d246329d8c3c5d7f0a31b9 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T03:30:07Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-033e71b419d246329d8c3c5d7f0a31b92023-12-03T14:55:31ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-01-019212410.3390/jmse9020124Dynamic Behavior of a Flexible Multi-Column FOWT in Regular WavesTaisuke Takata0Mayuko Takaoka1Rodolfo T. Gonçalves2Hidetaka Houtani3Yasuo Yoshimura4Kentaro Hara5Sho Oh6Raúl Dotta7Edgard B. Malta8Kazuhiro Iijima9Hideyuki Suzuki10OSPL—Ocean Space Planning Laboratory, Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, JapanOSPL—Ocean Space Planning Laboratory, Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, JapanOSPL—Ocean Space Planning Laboratory, Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, JapanOSPL—Ocean Space Planning Laboratory, Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, JapanOSPL—Ocean Space Planning Laboratory, Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, JapanShip Structure Integrity Subarea, Department of Naval Architecture and Ocean Engineering, Osaka University, Osaka 565-0871, JapanClassNK—Nippon Kaiji Kyokai, Tokyo 102-8567, JapanTPN—Numerical Offshore Tank Laboratory, Department of Naval Architecture and Ocean Engineering, University of São Paulo, São Paulo 05508-030, BrazilTechnomar Engenharia Oceânica, São Paulo 05419-905, BrazilShip Structure Integrity Subarea, Department of Naval Architecture and Ocean Engineering, Osaka University, Osaka 565-0871, JapanOSPL—Ocean Space Planning Laboratory, Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, JapanA tank experiment using a flexible multi-column floating offshore wind turbine (FOWT) model in regular waves was carried out to clarify the floater elastic response and its influence on the floater motion. The model motion response from the experiment was compared with the numerical simulations by NK-UTWind and WAMIT codes. The dynamic elastic deformation of the model was also compared between the experiment and NK-UTWind. The experiment observed significant elastic deformation for the decks and columns of the model around the wave period corresponding to the natural period of the structural vibration. Furthermore, comparing the heave response amplitude operator (RAO) between experiments and numerical simulations, a small peak appeared around this period in the experiment and NK-UTWind simulation instead of WAMIT simulation. These results indicated that dynamic elastic deformation affected the heave response of the model. The change in the model rigidity revealed that such elastic deformation could affect the motion response statistics in an actual sea condition if the peak period of the onsite wave spectrum is close to the floater natural vibration period. These investigations indicated the importance of considering the elastic behavior of a FOWT at its design stage.https://www.mdpi.com/2077-1312/9/2/124floating offshore wind turbine (FOWT)elastic characteristicsdeformationwave tests |
| spellingShingle | Taisuke Takata Mayuko Takaoka Rodolfo T. Gonçalves Hidetaka Houtani Yasuo Yoshimura Kentaro Hara Sho Oh Raúl Dotta Edgard B. Malta Kazuhiro Iijima Hideyuki Suzuki Dynamic Behavior of a Flexible Multi-Column FOWT in Regular Waves Journal of Marine Science and Engineering floating offshore wind turbine (FOWT) elastic characteristics deformation wave tests |
| title | Dynamic Behavior of a Flexible Multi-Column FOWT in Regular Waves |
| title_full | Dynamic Behavior of a Flexible Multi-Column FOWT in Regular Waves |
| title_fullStr | Dynamic Behavior of a Flexible Multi-Column FOWT in Regular Waves |
| title_full_unstemmed | Dynamic Behavior of a Flexible Multi-Column FOWT in Regular Waves |
| title_short | Dynamic Behavior of a Flexible Multi-Column FOWT in Regular Waves |
| title_sort | dynamic behavior of a flexible multi column fowt in regular waves |
| topic | floating offshore wind turbine (FOWT) elastic characteristics deformation wave tests |
| url | https://www.mdpi.com/2077-1312/9/2/124 |
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