Obtaining the Resonant Frequency of the Bubble in the Ship Wake by ANSYS

The acoustic characteristic of the ship wake is mainly determined by bubbles in it. The acoustic characteristic of the bubble is behaved by the reflection and scattering of different frequency of incident sound wave, which is due to the resonant frequency of the bubble. The modal analysis and the harmonic response analysis in the finite-element analysis were used to get the resonant frequency of some structures. The acoustic characteristic of the bubble in the ship wake was got at first, the finite-element structure of bubble was created then, and the ANSYS analysis was applied on fixing the resonant frequency of the bubble at last. After compared to the theoretical value, the finite analysis was proved to have the ability of fluently getting the accurate resonant frequency of the bubble.