The sound scattering from a fluid-loaded stiffened cylindrical shell at normal incidence is studied by theoretical and experimental approaches. The cylindrical shell is reinforced by an internal longitudinal rigid plate attached to the shell along the axial direction. The backscattered sound is analyzed via the frequency-angle spectra. By studying the generation, propagation, and radiation of the waves, the authors found that the dominant features in the frequency-angle spectra can be explained by the resonance of the shell and the interaction between the scattered and radiation waves. The most significant effect of the internal plate is the radiation of the subsonic waves caused by the attachments of the internal plate. Furthermore, simple formulas are given to predict the interference fringes in the frequency-angle spectra due to the interference between the specular reflection and the scattering from the shell structure response.
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June 2018
June 06 2018
Acoustic scattering from a cylindrical shell with an internal rigid plate: Analysis and experiment
Yunzhe Tong;
Yunzhe Tong
Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University
, Shanghai 200240, People's Republic of China
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Jun Fan;
Jun Fan
a)
Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University
, Shanghai 200240, People's Republic of China
Search for other works by this author on:
Bin Wang
Bin Wang
Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University
, Shanghai 200240, People's Republic of China
Search for other works by this author on:
Yunzhe Tong
Jun Fan
a)
Bin Wang
Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University
, Shanghai 200240, People's Republic of China
a)
Electronic mail: [email protected]
J. Acoust. Soc. Am. 143, 3332–3344 (2018)
Article history
Received:
September 06 2017
Accepted:
May 15 2018
Citation
Yunzhe Tong, Jun Fan, Bin Wang; Acoustic scattering from a cylindrical shell with an internal rigid plate: Analysis and experiment. J. Acoust. Soc. Am. 1 June 2018; 143 (6): 3332–3344. https://doi.org/10.1121/1.5040469
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