Sound radiation from cylindrical shell with T-shape stiffener in water

Abstract This article analyzes the characteristics of the underwater far-field radiation of reinforced cylindrical shell structure, and explores the distribution of far-ground single-point radiation sound pressure versus driven frequency and the distribution law of the radiation voice pressure with the peripheral angle. Results indicate that, as the excitation frequency increases, the underwater radiation sound power and single-point radiation acoustic pressure increase gradually, and then the wave peak and valley fluctuations appear. As the stimulation frequency increases, the number of petals from the curve of the radiation acoustic pressure circumferential distribution increases gradually, indicating that the structure is obviously angle-dependent in the direction of radiation in the circumference.