Abstract
An identification method for exciting force source inside underwater elastic structure by matched field processing (MFP) is presented. An underwater elastic cylindrical shell in free field is selected as the investigated subject, and the copy field of sound radiation transfer function is constructed by numerical method. The particle swarm optimization (PSO) algorithm is adopted for the search strategy. Both the simulation results and the experiment results show that: this identification method for exciting force source is effective for locating the exciting force source and analyzing the source intensity. The identification result can be applied to predict the radiated noise of the structure accurately.
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