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Wind, Wave, and Current Loads on Semisubmersibles

AuthorsWalree, F. van, Boom, H.J.J. van den
Conference/JournalOffshore Technology Conference (OTC), Houston, Texas, USA
Date1 Jan 1991
Prediction of environmental forces on offshore structures is indispensable in the design and engineering stage. Evaluation and dimensioning of mooring and/or dynamic positioning systems require accurate information on both the mean forces and the dynamic loading.For semi-submersibles the complicated non-streamline geometry was normally prohibitive for calculating such environmental loads. Based on systematic wind tunnel tests, model tests and diffraction analysis a practical calculation procedure has been developed recently. The method is based on a component building block approach with special attention paid to component interaction and lift force effects.

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