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《Computer Simulation》 2007-08
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Array Radiation Sound Field Calculation and Beam-Synthesis Based on Wave Superposition Method

JIANG Wei,WANG Dong-hai(Institute of Acoustic Engineering,Northwestern Polytechnical University,Xi'an Shanxi 710072,China)  
The radiation sound field calculation,especially the beam synthesis of the underwater acoustic transducer array are of great importance in the design of underwater systems,therefore,much attention is paid to this item.However,the current methods,the boundary integral method for example,fail to provide an unique solution for the characteristic frequency,and even become singular.On the contrary,due to completing its integral calculation in the interior part of the radiator,wave superposition method does not have the defects as the boundary integral methods do.In this paper,a mathematical model for the radiation sound field calculation as well as the beam synthesis based on the wave superposition method(WSM) is presented,and the corresponding formulas are provided. Furthermore,two methods for solving the formula equations——least squared(LS) method and singular value decomposition(SVD) method are presented as well.Computer simulations and water-tank experiments are carried out for a 14-element circular array mounted on a half-spherical rigid baffle.The results verify the correctness of the proposed model.In conclusion,the proposed model is helpful for the design of underwater acoustic systems and performance predications.
【CateGory Index】: TN912.1
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Chinese Journal Full-text Database 1 Hits
1 Xiang Yu 1,2 Huang Yuying 1 ( 1 College of Civil Engineering and Mechanics, Huazhong University of Science & Technology, Wuhan, 430074) ( 2 Department of Automobile Engineering, Guangxi University of Technology, Liuzhou, 545006);WAVE SUPERPOSITION METHOD BASED ON VIRTUAL SOURCE BOUNDARY WITH COMPLEX RADIUS VECTOR FOR SOLVING ACOUSTIC RADIATION PROBLEMS[J];Acta Mechanica Solida Sinica;2004-01
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