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Development of Deep Draught Semisubmersible Shape  

Lee, Jin-Ho (Samsung Heavy Industry Ltd, Marine Research Institute)
Lee, June-Young (Samsung Heavy Industry Ltd, Offshore Engineering Team)
Kim, Byung-Woo (Samsung Heavy Industry Ltd, Marine Research Institute)
Publication Information
Journal of Ocean Engineering and Technology / v.22, no.5, 2008 , pp. 138-141 More about this Journal
Abstract
This paper treats the development of a new type of deep draught semisubmersible offshore structural shape that has excellent heave motion response and less down-time. This new type of semisubmersible shape is characterized by heave dampers at each pontoon corner and appropriate column size adjustment to achieve the desired cancellation and resonance motion period. It was found that the final model had efficient workability, based on the wavescatter diagrams for the GoM and North Atlantic ocean, due to less heave motion, although the specific heave response at the 100 year return period wave condition in the North Atlantic was more or less increased.
Keywords
Deep draught semisubmersible; Heave motion response; Down-time; Heave damper; Column size;
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