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Borghei, S. (2004). Dynamic Response of a Moored Semisubmersible in Short-Crested Wave Fields. Scientia Iranica, 11(4), -.
S.M. Borghei. "Dynamic Response of a Moored Semisubmersible in Short-Crested Wave Fields". Scientia Iranica, 11, 4, 2004, -.
Borghei, S. (2004). 'Dynamic Response of a Moored Semisubmersible in Short-Crested Wave Fields', Scientia Iranica, 11(4), pp. -.
Borghei, S. Dynamic Response of a Moored Semisubmersible in Short-Crested Wave Fields. Scientia Iranica, 2004; 11(4): -.

Dynamic Response of a Moored Semisubmersible in Short-Crested Wave Fields

Article 9, Volume 11, Issue 4, October 2004  XML PDF (873 K)
Author
S.M. Borghei
Department of Civil Engineering,Sharif University of Technology
Abstract
Wind generated sea states are more accurately modeled by short-crested wave fields. Whether or not these short-crested waves can induce larger response amplitudes in floating offshore structures is of great concern to offshore engineers. In this paper, the hydrodynamics of a moored semisubmersible in short-crested wave fields is investigated. Morison-based motion equations with nonlinear damping terms are used to analyze the dynamic behavior of the structure. A generalized three-parameter short-crested wave field is introduced as the incident wave. The effect of transverse phase lag, wave propagation angle and different ratios of in-line and transverse wave numbers are studied on the force and response amplitudes of the floating structure. Finally, the results are compared to that of the long-crested wave fields and critical cases are specified.
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