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Investigations Into Motion Characteristics of a Multi-Column Type FOWT in Waves and Winds

[+] Author Affiliations
Motohiko Murai, Miki Takei, Hotsuma Saeki

Yokohama National University, Yokohama, Japan

Yasunori Nihei

Osaka Prefecture University, Osaka, Japan

Kazuhiro Iijima

Osaka University, Osaka, Japan

Tomoki Ikoma

Nihon University, Chiba, Japan

Paper No. OMAE2013-11131, pp. V003T05A022; 7 pages
  • 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


Many researches about various type of FOWT have been already carried out by many researchers including the authors of this paper. As a result, we know that each type has own advantages and own disadvantages. On the other hand, in general, because the floating type is different for each project, it has not compared its performance among those projects in the same condition. Therefore, the authors have examined the performance of the various types of FOWT under the same experimental conditions.

In this paper, the performance of the FOWT focusing on Semi-submersible type of multi-column type in particular is reported. First, we examined as design requirements the shape of a column with footing, the distance between the columns and the number and the arrangement of the multi-column. Within it, we investigated the combination of the variables for good performance in waves and winds. We manufactured a 1/100 experiment model which is based on the design requirements and carried out the experiment in waves and winds. Then we discuss the effectiveness of the model using the experimental results and the numerical results.

Copyright © 2013 by ASME
Topics: Waves



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