Radiated noise is an important index for evaluating the operational performance and ability of survive of submarines, and also the main factor to destroy the acoustic stealth performance. Prediction of the vibration and sound radiation of underwater structures is an important basis of vibration and noise reduction designing. Prediction of the vibration and sound radiation of underwater structures is an important basis of vibration and noise reduction designing. Therefore, improving the computational efficiency of sound and vibration prediction of large underwater structures without losing...