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Three-Dimensional Analysis of Hydroelastic Behaviors of an Aircushion Type Large Floating Structure

[+] Author Affiliations
Tomoki Ikoma, Koichi Masuda, Hisaaki Maeda

Nihon University, Funabashi, Chiba, Japan

Chang-Kyu Rheem

University of Tokyo, Tokyo, Japan

Paper No. OMAE2005-67057, pp. 349-355; 7 pages
doi:10.1115/OMAE2005-67057
From:
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 2
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4196-0 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME

abstract

This paper describes theoretical formulations for a prediction of hydrodynamic forces on the aircushion type large floating structure and shows corresponding results. Therefore, a new program code is developed. The structure is supported by large mono-aircushion. The present theory is based on the three-dimensional singular point distribution method. Effect of the aircushion is considered in this. Then, a processing of a singular integral of the boundary integral method is shown and its validity is confirmed. In conclusion, the draft effect to the pressure within the aircushion is discussed. As a result, when width of the skirt is thin, the draft effect is little. However, in case that the width is large, the draft effect is enlarged.

Copyright © 2005 by ASME

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