Study on the Optimization Method for Vibration Level : Optimization for Vibration Level in the Superstructure of the Ship

Abstract

ISO6954(Guidelines for the overall evaluation of vibration in merchant ship), which was adopted by ISO(International Standard Organization)in 1984, is generally used as the guideline for evaluation of vibration level in a superstructure. It is necessary to design the superstructure, in such a way, the vibration that occurs in the superstructure should satisfy the evalution curve of this guideline. In this paper, the vibration level is defined, which contains the vibration force of engine, and the optimization system for vibration level is verified by applying it to a simple approximated FE model of ship structure. In this way a more realistic system can be analised.