LOW VIBRATION MARINE VESSEL STRUCTURE AND ITS DESIGN METHOD

摘要

PROBLEM TO BE SOLVED: To provide a low vibration marine vessel structure reducing effective excitation force of propeller excitation force effectively utilizing a joint and a body of a vibration mode.;SOLUTION: In the low vibration marine vessel structure, a hull main structure has an inherent main hull upper and lower joint vibration mode. An acting position L1 of the propeller excitation force F and a joint position N1' of the main hull upper and lower joint vibration mode are made coincident with each other by an excitation frequency fp of the propeller excitation force F, and an excitation component of the propeller excitation force, i.e., an effective excitation force component can be reduced or eliminated.;COPYRIGHT: (C)2010,JPO&INPIT