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2002, 11

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.

REFERENCES

[1] Petersson, B. and Plunt, J. On effective mobilities in the prediction of structure-bore sound transmission between a source structure and a receiving structure, Part I: theoretical background and basic experimental studies. Journal of Sound and Vibration, 82(4), 517-529, (1982)
[2] Guo, L., Zhu, Sh., and Zhu, Sh. The prediction of local vibration characteristics of naval ship structures. Journal of Ship Mechanics, 4(6), 69-83, (2000)
[3] Shen, Sh., Leng, W., and Cheng Guanyi. Research on vibration and sound radiation of multiplayer isolation system with composite structure. Shipbuilding of China (in Chinese), (3), 49-59, (1997)
[4] Shang, D. and He, Z. The numerical analysis of sound and vibration from a ring-stiffened cylindrical double-shell by FEM and BEM. ACTA ACOUSTICA (in Chinese), 26(3), 193-201, (2001)
[5] Chen, W., and Luo, D. Sound radiation from finite ring-stiffened cylindrical shells coated with viscoelastic layer. ACTA ACOUSTICA (in Chinese), 25(1): 27-32, (2001)
[6] Zheng, H., Liu, G. R., and Tao, J. S. FEM/BEM analysis of diesel piston-slap induced ship hull vibration and underwater noise. Applied Acoustics, 62, 341-358, (2001)
[7] Everstine, G. C., and Henderson, F. M. Coupled finite element/boundary element approach for fluid-structure interaction. JASA, 87(5), 1938-1947, (1990)
[8] Seybert, A. F., Wu, T. W., and Li, W. L., A coupled FEM/BEM for fluid-structure interaction using ritz vectors and eigenvectors. Trans. ASME, Journal of Vibration and Acoustics, 115, 152-158, (1993)


 

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