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김철현(Chuelhyun Kim),김용수(Young-Soo Kim),이영범(Young Bum Lee),김덕수(Deok-Su Kim),김대웅(DaeWoong Kim) 한국해양환경·에너지학회 2012 한국해양환경공학회 학술대회논문집 Vol.2012 No.5
The importance to take into account second-order motion of semi-submersibles in waves is being emphasized because sometimes, the low frequency roll motions were enen greater than the wave frequency roll motions. The paper describes characteristics of second-order roll motion of semi-submersibles in regular and irregular waves with results obtained with model tests. From the model tests in regular head wave it was observed that a semi-submersible could take on a steady list angle in specific wave period Second-order motion characteristics of a semi-submersibles are investigated from the model tests at different drafts, wave and current speeds. Also, time domail analysis has been used to calculate the roll motion of the semi-submersible and the results gave a good agreement with those of the model test.
김철현(Chuelhyun Kim),김용수(Young-Soo Kim),이영범(Young Bum Lee),김덕수(Deok-Su Kim),김대웅(DaeWoong Kim) 대한조선학회 2012 대한조선학회 학술대회자료집 Vol.2012 No.5
The importance to take into account second-order motion of semi-submersibles in waves is being emphasized because sometimes, the low frequency roll motions were even greater than the wave frequency roll motions. The paper describes characteristics of second-order roll motion of semi-submersibles in regular and irregular waves with results obtained with model tests. From the model tests in regular head wave it was observed that a semi-submersible could take on a steady list angle in specific wave period. Second-order motion characteristics of a semi-submersibles are investigated from the model tests at different drafts, wave and current speeds. Also, time domain analysis has been used to calculate the roll motion of the semi-submersible and the results gave a good agreement with those of the model test.