Estimation of wave forces on large compliant platforms |
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| Authors: | S Mirzaie Sefat M J Ketabdari |
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| Institution: | Faculty of Marine Technology, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran |
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| Abstract: | Compliant offshore structures such as spars, tension leg platforms (TLPs) and semi-submersibles have been dramatically improved in recent years due to their capability for deep water operation. Waves are the most important environmental phenomenon affecting these offshore structures. Estimation of wave forces is vital in offshore structure design. For large compliant offshore plat-forms, Morrison's equation is not valid anymore and usually diffraction theory is used. In this research, by using the finite difference method, a detailed analysis of the first-order diffraction of monochromatic waves on a large cylinder as a structural element is per-formed to solve the radiation and diffraction potentials. The results showed that the developed model is a reliable tool to estimate the wave forces and hydrodynamic coefficients on large structure elements when wave diffraction and radiation are considered. |
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| Keywords: | Laplace equation finite difference method wave diffraction wave radiation |
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