Proceedings of the 1st International Conference on Mechanical Engineering and Material Science (MEMS 2012)

Dynamic Absorber Characteristics of Decoupling Coating Covering Underwater Structure

Authors
HE Shi-ping, LIU Gui-feng
Corresponding Author
HE Shi-ping
Available Online December 2012.
DOI
https://doi.org/10.2991/mems.2012.170How to use a DOI?
Keywords
decoupling coating; dynamic absorber; underwater sound radiation; underwater structure
Abstract
It is a difficult problem to reduce the low-frequency vibration and radiation noise of underwater structure by decoupling coating. Assuming decoupling coating as viscoelastic fluid, a vibroacoustic model of a simply supported rectangular plate covered by decoupling coating is presented. The model simulates the vibration and acoustic response of the structure which is water-loaded on one side and air backed on the other. The characteristics of vibration and acoustics reduction by the decoupling coating are analyzed. The results show that: 1) For single flexural mode of plate, plate-decoupling coating-water layer is similar to two-freedom degree system, which has two resonant frequencies and an anti-resonant frequency, and dynamic absorber characteristics are introduced by decoupling coating; 2) Dynamic absorber characteristics could be utilized to reduce the low-frequency vibration and underwater radiation noise by selecting suitable parameters of decoupling coating.
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Volume Title
Proceedings of the 1st International Conference on Mechanical Engineering and Material Science (MEMS 2012)
Series
Advances in Intelligent Systems Research
Publication Date
December 2012
ISBN
978-90-78677-59-8
ISSN
1951-6851
DOI
https://doi.org/10.2991/mems.2012.170How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - HE Shi-ping
AU  - LIU Gui-feng
PY  - 2012/12
DA  - 2012/12
TI  - Dynamic Absorber Characteristics of Decoupling Coating Covering Underwater Structure
BT  - Proceedings of the 1st International Conference on Mechanical Engineering and Material Science (MEMS 2012)
PB  - Atlantis Press
SP  - 649
EP  - 653
SN  - 1951-6851
UR  - https://doi.org/10.2991/mems.2012.170
DO  - https://doi.org/10.2991/mems.2012.170
ID  - Shi-ping2012/12
ER  -