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Structural and Acoustic Response of a Finite Stiffened Conical Shell

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Abstract

In this paper, a precise transfer matrix method is presented to calculate the structural and acoustic responses of the conical shell. The governing equations of conical shells are written as a coupled set of first order differential equations. The field transfer matrix of the shell and non-homogenous term resulting from the external excitation are obtained by precise integration method. After assembling the field transfer matrixes, the whole matrix describing dynamic behavior of the stiffened conical shell is obtained. Then the structural and acoustic responses of the shell are solved by obtaining unknown sound pressure coefficients. The natural frequencies of the shell are compared with the FEM results to test the validity. Furthermore, the effects of the semi-vertex angle, driving force directions and boundary conditions on the structural and acoustic responses are studied.

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Authors and Affiliations

  1. Key Laboratory of High Performance Ship Technology of Ministry of Education, Wuhan University of Technology, 430063, Wuhan, China

    Xianzhong Wang & Weiguo Wu

  2. Departments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, 430063, Wuhan, China

    Xianzhong Wang & Weiguo Wu

  3. College of Shipbuilding Engineering, Harbin Engineering University, 150001, Harbin, China

    Xiongliang Yao

Authors
  1. Xianzhong Wang
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  2. Weiguo Wu
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  3. Xiongliang Yao
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Corresponding author

Correspondence to Xianzhong Wang.

Additional information

Project supported by the National Natural Science Foundation of China (No. 51409200) and the Research Fund for the Central University (WUT: 2014-IV-022).

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Wang, X., Wu, W. & Yao, X. Structural and Acoustic Response of a Finite Stiffened Conical Shell. Acta Mech. Solida Sin. 28, 200–209 (2015). https://doi.org/10.1016/S0894-9166(15)30008-2

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  • DOI: https://doi.org/10.1016/S0894-9166(15)30008-2

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