出版社:The Japan Society of Naval Architects and Ocean Engineers
摘要:This paper discusses characteristics of vertical hull vibration excited by a main engine in regular head waves. The ship structure is modelled by Euler beam to have added mass, which is derived from calculated results of ship motion by using the ordinary strip theory. The engine-excited hull vibration is studied by numerical calculation using the finite element method as well as theoretical analysis based on a simplified mechanical model. It is concluded that the responce to main engine is also magnified with beat near the natural frequencies of ship structure caused by interactive effects with waves.