Structure-Acoustic Coupling Analysis of Vibration and Underwater Acoustic Radiation of a Ring-Stiffened Conical Shell | Zendy

Qingtao Gong | Zendy; Zhanyang Chen | Zendy; Hongbin Gui | Zendy; Dong Yu | Zendy

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Structure-Acoustic Coupling Analysis of Vibration and Underwater Acoustic Radiation of a Ring-Stiffened Conical Shell

Author(s) -

Qingtao Gong,

Zhanyang Chen,

Hongbin Gui,

Dong Yu

Publication year - 2021

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2021/5027939

Subject(s) - underwater , acoustics , acoustic radiation , conical surface , shell (structure) , vibration , boundary element method , submarine , finite element method , sound pressure , coupling (piping) , radiation , sound power , physics , engineering , sound (geography) , optics , structural engineering , geology , mechanical engineering , marine engineering , oceanography

The underwater acoustic radiation of the submarine power cabin has recently become a hot topic in the industry and also in the academia. In this article, the vibration and underwater acoustic radiation of a ring-stiffened conical shell with bases are investigated numerically by means of the combination of the finite element method and boundary element method. The acoustic radiation field is obtained by the traditional acoustic field model and ISO acoustic field model, respectively. A series of numerical examples are given, and the results are compared. Besides, the sound pressure at different positions with frequency is further studied. It is shown that the sound radiated by the structure mainly propagates to the side directions of the shell and propagates relatively less to the front side and the rear side.

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