Electronic Journal Technical Acoustics ISSN 1819-2408

Z.M. Xu, R.Y. Shen, H.X. Hua

Coupling vibro-acoustic behavior from a submarine power cabin equipped with floating-raft isolating systems

language: English

received 27.06.2002, published 10.10.2002

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ABSTRACT

Prediction of the fluid-structure vibration and acoustic radiation from a submerged submarine is a key problem in the naval engineering. In this paper, for a simulated submarine power cabin with ring-stiffened double shell, the fluid-structure coupling model is built by finite element software ANSYS. The vibrating transfer function inside the cabin, vibration velocity of the outer hull and radiated acoustic power are calculated by FEM/BEM for different parameters of the floating-raft isolating systems, i. e. (1) stiffness of two-stage elastic mounts; (2) raft mass ratio; (3) raft stiffness. This computational procedure can be further used to perform acoustic design of a real submarine.

10 pages, 5 figures

Сitation: Z.M. Xu, R.Y. Shen, H.X. Hua. Coupling vibro-acoustic behavior from a submarine power cabin equipped with floating-raft isolating systems. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2002, 11.

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		Z. M. Xu - a student at State National Key Laboratory, Shanghai Jiaotong University. Current research interests: fluid-structure vibration; shape optimization. E-mail: xuzhangming(at)sjtu.edu.cn
no photo		R. Y. Shen R. Y. Shen, State National Key Laboratory, Shanghai Jiaotong University. Current research interests: ship vibration and noise control; power flow. E-mail: ryshen(at)sjtu.edu.cn
no photo		H. X. Hua H. X. Hua, State National Key Laboratory, Shanghai Jiaotong University. Current research interests: structural finite element analysis. E-mail: hxhua(at)sjtu.edu.cn