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Underwater sound scattering from a submerged rectangular plate with absorbent coating

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Journal of Shanghai University (English Edition)

Abstract

This paper studies sound scattering from small objects using GTD. Samples are made of steel plate covered with absorbent material. Expressions for scattered sound are derived using uniform GTD formulae for wedges covered with an impedance layer. Numerical results show that edge diffraction is closely associated with parameters such as frequency, angle of incidence, dimension, material property, etc. Measurements are in general agreement with numerical computations. It is expected that the method will eventually lead to empirical formulation for prediction of target strength and free-field measurements of reflectivity of acoustic materials.

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Author information

Authors and Affiliations

  1. School of Communication and Information Eng. Shanghai University, 149 Yanchang Road, 200072, Shanghai

    Wang Shuozhong (Professor)

  2. Dalian 760 Research Institute, China

    Wang Rongqing

  3. System Engineering Division, China National Ship-Building Corporation, China

    Shen Ruixi

Authors
  1. Wang Shuozhong
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  2. Wang Rongqing
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  3. Shen Ruixi
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Additional information

This work is supported by the National Natural Science Foundation of China

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Wang, S., Wang, R. & Shen, R. Underwater sound scattering from a submerged rectangular plate with absorbent coating. J. of Shanghai Univ. 1, 59–63 (1997). https://doi.org/10.1007/s11741-997-0045-x

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  • DOI: https://doi.org/10.1007/s11741-997-0045-x

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