Abstract
Abstract
With the continuous progress and development of the military strength of various countries, the concealment performance of submarines has received more and more attention from various countries. It has gradually become an effective way to reduce vibration and noise by studying the vibration and sound radiation characteristics of the propeller-shaft-boat coupling structure. The previous research methods for the vibration and sound radiation characteristics of simple and uniform structures are insufficient in meeting current actual engineering needs. Therefore, it is necessary to explore a more accurate and efficient method for modeling and calculating the complex non-uniform structure of the propeller-shaft-boat.