School of Naval Architecture and Marine Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China;
Offshore Oil/Gas Research Center,China University of Petroleum,Beijing 102249,China;
School of Naval Architecture and Marine Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China;
Department of Mechanics and Engineering,Peking University,Beijing 100080,China;
COPPE,Federal University of Rio de Janeiro,P.O.Box 68508 RJ 21945-970,Brazil;
Design Division,CNOOC Engineering,Tanggu,Tianjin 300452,China;
