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Designing Process and Motion Characteristics of Spar Type Offshore Wind Turbines

[+] Author Affiliations
Yasunori Nihei, Minori Kozen

Osaka Prefecture University, Sakai, Osaka, Japan

Tomoki Ikoma, Fumiya Sato

Nihon University, Funabashi, Chiba, Japan

Motohiko Murai

Yokohama National University, Yokohama, Kanagawa, Japan

Kazuhiro Iijima

Osaka University, Suita, Osaka, Japan

Paper No. OMAE2013-11262, pp. V003T05A025; 9 pages
doi:10.1115/OMAE2013-11262
From:
  • ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 3: Materials Technology; Ocean Space Utilization
  • Nantes, France, June 9–14, 2013
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5535-5
  • Copyright © 2013 by ASME

abstract

In this paper, we will discuss about the designing process and the motion characteristics of the spar type offshore wind turbines. When considering a spar type structure for offshore wind turbines, it is important to take a lot of elements into consideration which have not yet been considered in the case of oil and gas platforms. In this research, we used the following standards to conduct our tests. The limit of the heel angle was 5 degrees when the wind turbines are generating in the rated state. When designing the substructure for this research we have decided to go with a substructure that operates in depth of 100m or more. Following the conditions above we have designed the spar type offshore wind turbine used for this research. In order to compare the simulated result we have created a scale model and performed tank tests under various conditions. Also we observed unexpected motion characteristics in certain mooring arrangement. So we will touch these subjects in this paper.

Copyright © 2013 by ASME

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