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Coupled Nonlinear Motion of Floating Structures With Water Columns in Open-Bottom Tanks

[+] Author Affiliations
Q. W. Ma

Robert Gordon University, Aberdeen, UK

M. H. Patel

University College London, London, UK

Paper No. OMAE2002-28548, pp. 783-791; 9 pages
doi:10.1115/OMAE2002-28548
From:
  • ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
  • 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1
  • Oslo, Norway, June 23–28, 2002
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3611-8 | eISBN: 0-7918-3599-5
  • Copyright © 2002 by ASME

abstract

This paper examines the behaviour in ocean waves of floating structures that incorporate open-bottom tanks on their submerged hull geometry. These tanks contain water columns that can flow in or out through their open bottoms, and may also include a volume of trapped air on the top of such water columns. The trapped air acts as a spring with the motion of the floating structures in ocean waves being influenced by interactions between the vessel, the air springs and the water columns underneath them. During operations, the volume of air above the water columns can be trapped or allowed to flow freely to and from the atmosphere.

Copyright © 2002 by ASME

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