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Experimental studies on the vibro-acoustic behavior of a stiffened submerged conical-cylindrical shell subjected to force and acoustic excitation

Experimental studies on the vibro-acoustic behavior of a stiffened submerged conical-cylindrical shell subjected to force and acoustic excitation
Experimental studies on the vibro-acoustic behavior of a stiffened submerged conical-cylindrical shell subjected to force and acoustic excitation
An experimental model was made to investigate the influence of force and acoustic excitation on the vibration and underwater sound radiation of the stiffened conical-cylindrical shell. Meanwhile, a coupled precise transfer matrix method and wave superposition method was also proposed to analyze vibro-acoustic responses of combined shells. To test accuracy of the present method, vibration and acoustic results of combined shells are firstly examined. As expected, results of present method are in excellent agreement with the ones in literature and model test. The experimental results show that free vibrations of the experimental test are consistent with the literature data and the present method’s results. Forced vibration and acoustic test results are also well agreed with the numerical results from the coupled precise transfer matrix method/wave superposition method. The comparisons show that the coupled precise transfer matrix method/wave superposition method is reliable and credible to solve the vibro-acoustic response of combined shells. The analysis shows that the acoustic excitation is the key factor for radiated noise in low-frequency range. However, the radiated noise resulted from force excitation is dominant in mid-high frequency band.
A conical-cylindrical shell, vibration, sound radiation, Acoustic excitation, Experiment
1461-3484
Wang, Xianzhong
cb2179c9-46bb-4873-9b46-04b2606763d9
Jiang, Quanzhou
5e743a0c-e0bc-4192-a601-c6bb905a9cfa
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Guo, Xin
c1da16ff-f2d9-4500-92c7-aafb401efab8
Wang, Xianzhong
cb2179c9-46bb-4873-9b46-04b2606763d9
Jiang, Quanzhou
5e743a0c-e0bc-4192-a601-c6bb905a9cfa
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Guo, Xin
c1da16ff-f2d9-4500-92c7-aafb401efab8

Wang, Xianzhong, Jiang, Quanzhou, Xiong, Yeping and Guo, Xin (2019) Experimental studies on the vibro-acoustic behavior of a stiffened submerged conical-cylindrical shell subjected to force and acoustic excitation. Journal of Low Frequency Noise, Vibration and Active Control. (doi:10.1177/1461348419844648).

Record type: Article

Abstract

An experimental model was made to investigate the influence of force and acoustic excitation on the vibration and underwater sound radiation of the stiffened conical-cylindrical shell. Meanwhile, a coupled precise transfer matrix method and wave superposition method was also proposed to analyze vibro-acoustic responses of combined shells. To test accuracy of the present method, vibration and acoustic results of combined shells are firstly examined. As expected, results of present method are in excellent agreement with the ones in literature and model test. The experimental results show that free vibrations of the experimental test are consistent with the literature data and the present method’s results. Forced vibration and acoustic test results are also well agreed with the numerical results from the coupled precise transfer matrix method/wave superposition method. The comparisons show that the coupled precise transfer matrix method/wave superposition method is reliable and credible to solve the vibro-acoustic response of combined shells. The analysis shows that the acoustic excitation is the key factor for radiated noise in low-frequency range. However, the radiated noise resulted from force excitation is dominant in mid-high frequency band.

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More information

e-pub ahead of print date: 9 May 2019
Keywords: A conical-cylindrical shell, vibration, sound radiation, Acoustic excitation, Experiment

Identifiers

Local EPrints ID: 431248
URI: http://eprints.soton.ac.uk/id/eprint/431248
ISSN: 1461-3484
PURE UUID: f4d70b28-adc4-429a-b592-0cdc5fa68d50
ORCID for Yeping Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 28 May 2019 16:30
Last modified: 26 Nov 2021 02:44

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Contributors

Author: Xianzhong Wang
Author: Quanzhou Jiang
Author: Yeping Xiong ORCID iD
Author: Xin Guo

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