A Fast Prediction Method of Acoustic Radiation of Underwater Unmanned Vehicle

Aiming at the problem that high cost of acoustic radiation measurement of underwater unmanned vehicle, and the problem that the acoustic pressure measured in the pool is difficult to separate due to the multiple reflection of the wall, an approximate calculation method in engineering is proposed in this paper. The core idea is to calculate the acoustic radiation of underwater unmanned vehicle by using the vibration of underwater unmanned vehicle in finite space and combining with the acoustic radiation efficiency in free field. The simulation results show that the vibration difference between the underwater unmanned vehicle in the finite space and in the free field is small, and the vibration in the finite space can be used to replace its vibration in free field to quickly predict the sound radiation of underwater unmanned vehicle..