A New Approach to the Characterization for Ship Vibration, considering the Distribution of Energy in the Structures

Abstract

It has become common works in the shipbuilding yards, to analize precisely the vibration characteristics of the ship structures by the numerical method such as the Finite Element Method, in order to avoid excessive response of ship vibration. We developed a new approach method to know the characteristics of the ship vibration, considering its energy distribution and parametric sensitivities of the structures. The results of our study show that this method is very useful to understand the vibration phenomena and make it easy to find effective countermeasures for remedy of structures to prevent harmful ship vibration.