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Publications
Uğurlu B. and Guedes Soares, C. (2008), “Application of the Fourier-Kochin Theory to the Hydroelastic Analysis of Stationary Floating Structures”, Proceedings of the TEAM 2008, Ergin, A. (Ed.), Istanbul, Turkey, pp. 158-166
A linear 3-D numerical method is proposed for the frequency domain hydroelastic analysis of floating structures. The method is based on the linear potential-flow theory with modal analysis principles, allowing the expressions of the structural response and radiation potential as a summation of distortions in the principle modes and a series of components corresponding to each principal mode, respectively, where the fluid-structure interaction is considered by assuming that the elastic body preserves its principle modal shapes when in contact with the surrounding fluid. During the analysis, initially a finite element analysis is performed to evaluate the dynamic characteristics of the freely vibrating structure, followed by the boundary element solution of the corresponding fluid problem for calculating the frequency dependent interaction forces, where the Fourier-Kochin theory of free-surface flows [1] is adopted. The method has been applied to a freely floating ellipsoid, with keeping the radiation forces as the main interest.
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