Abstract
To predict the sound radiation of structures, both a structural problem and an acoustic problem have to be solved. In case of thin structures and dense fluids, a strong coupling scheme between the two problems is essential, since the feedback of the acoustic pressure onto the structure is not negligible. A popular idea for solving this class of problems is to discretizing the structural domain with the finite element (FE) method and with boundary element (BE) method on the acoustic field. A wide range of researches has been carried on the coupling the FE and BE methods. For fast prediction of sound radiation characteristic of similar structures, a coupled solver in frequency domain is presented in this essay. Numerical experiments showed acceleration on noise optimization problems of underwater structures with different materials.
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