Mode Experiment and Modeling Calculation with Finite Element Analysis of the Underwater Vehicle

In order to forecast the vibration and noise level of the underwater vehicle, it is very important to establish a vibrated model of the power plant and the shell. The finite element method was used in this paper. The vibration analysis was carried out and the parameters of each shape mode were derived. Based on the method of test modal, the validity was verified. The vibration transfer function from the power plant was discussed, and the method of vibration and noise reduction was surreyed in structure and material.