@article { author = {Borghei, S.M.}, title = {Dynamic Response of a Moored Semisubmersible in Short-Crested Wave Fields}, journal = {Scientia Iranica}, volume = {11}, number = {4}, pages = {-}, year = {2004}, publisher = {Sharif University of Technology}, issn = {1026-3098}, eissn = {2345-3605}, doi = {}, 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.}, keywords = {}, url = {https://scientiairanica.sharif.edu/article_2539.html}, eprint = {https://scientiairanica.sharif.edu/article_2539_d4c3686587512712246351ed608617b1.pdf} }