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An experimental and modeling study on vibro-acoustic response of double-walled steel cylindrical shells

An experimental and modeling study on vibro-acoustic response of double-walled steel cylindrical shells
An experimental and modeling study on vibro-acoustic response of double-walled steel cylindrical shells
Based on precise transfer matrix method (PTMM), the analytical model of the double-walled steel cylindrical shell was setup by taking into account of the annular plate and interlayer water. Under the linear sweep frequency excitation or the fixed frequency excitation, an experimental model of the double-walled steel cylindrical shell has been designed, which is performed to gain the natural frequencies, forced vibration in air and water, underwater acoustic radiation. The analytical model was established to calculate natural frequencies, vibration acceleration level and sound pressure level and compare with the relevant experimental results. The compared results show that analytical results coincide with the experimental value and prove that the analytical model established by PTMM is reliable and credible. Meanwhile, the forced vibration behaviour of measuring positions at inner and outer shells was investigated both theoretically and experimentally. Effects of different types of external excitations on the vibration and sound radiation of the double-walled cylindrical shell are discussed. As to acoustic radiation, the acoustic excitation plays a leading role in the low-frequency range. The force excitation is a major contributor in middle-high frequency range conversely.
Double-walled cylindrical shells · Sound source excitation · Acoustic radiation · Vibration
1598-2351
1-19
Wang, Xian-Zhong
cb2179c9-46bb-4873-9b46-04b2606763d9
Chen, Li
fce2798c-42e7-470c-84bd-eae5a2c162d3
Li, Ning
9d42e455-b923-43ee-8214-da4e6be75318
Xia, Yu
8c42ff27-4530-4781-b76b-c1861e73c92b
Xiong, Ye-Ping
51be8714-186e-4d2f-8e03-f44c428a4a49
Wang, Xian-Zhong
cb2179c9-46bb-4873-9b46-04b2606763d9
Chen, Li
fce2798c-42e7-470c-84bd-eae5a2c162d3
Li, Ning
9d42e455-b923-43ee-8214-da4e6be75318
Xia, Yu
8c42ff27-4530-4781-b76b-c1861e73c92b
Xiong, Ye-Ping
51be8714-186e-4d2f-8e03-f44c428a4a49

Wang, Xian-Zhong, Chen, Li, Li, Ning, Xia, Yu and Xiong, Ye-Ping (2020) An experimental and modeling study on vibro-acoustic response of double-walled steel cylindrical shells. International Journal of Steel Structures, 20 (4), 1-19. (doi:10.1007/s13296-020-00344-2).

Record type: Article

Abstract

Based on precise transfer matrix method (PTMM), the analytical model of the double-walled steel cylindrical shell was setup by taking into account of the annular plate and interlayer water. Under the linear sweep frequency excitation or the fixed frequency excitation, an experimental model of the double-walled steel cylindrical shell has been designed, which is performed to gain the natural frequencies, forced vibration in air and water, underwater acoustic radiation. The analytical model was established to calculate natural frequencies, vibration acceleration level and sound pressure level and compare with the relevant experimental results. The compared results show that analytical results coincide with the experimental value and prove that the analytical model established by PTMM is reliable and credible. Meanwhile, the forced vibration behaviour of measuring positions at inner and outer shells was investigated both theoretically and experimentally. Effects of different types of external excitations on the vibration and sound radiation of the double-walled cylindrical shell are discussed. As to acoustic radiation, the acoustic excitation plays a leading role in the low-frequency range. The force excitation is a major contributor in middle-high frequency range conversely.

Text
Final accepted manuscript_IJSS_Wang&Xiong - Accepted Manuscript
Restricted to Repository staff only until 17 April 2021.
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More information

Accepted/In Press date: 3 April 2020
e-pub ahead of print date: 17 April 2020
Keywords: Double-walled cylindrical shells · Sound source excitation · Acoustic radiation · Vibration

Identifiers

Local EPrints ID: 439634
URI: http://eprints.soton.ac.uk/id/eprint/439634
ISSN: 1598-2351
PURE UUID: cbe5f17d-ece0-4943-8d8f-2ab089e52e83
ORCID for Ye-Ping Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 28 Apr 2020 16:35
Last modified: 18 Feb 2021 16:55

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