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Citation:
　Jun-jie Zhang,Tian-yun Li,Wen-bing Ye and Xiang Zhu.Acoustic Radiation of Damped Cylindrical Shell with Arbitrary Thickness in the Fluid Field[J].Journal of Marine Science and Application,2010,(4):431-438.
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Acoustic Radiation of Damped Cylindrical Shell with Arbitrary Thickness in the Fluid Field

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Title:
Acoustic Radiation of Damped Cylindrical Shell with Arbitrary Thickness in the Fluid Field
Author(s):
Jun-jie Zhang;  Tian-yun Li;  Wen-bing Ye and Xiang Zhu
Affilations:
Author(s):
Jun-jie Zhang;  Tian-yun Li;  Wen-bing Ye and Xiang Zhu
School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Keywords:
insertion loss;  acoustic radiation;  coated layer;  Lamè resolution;  Helmholtz equation
分类号:
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DOI:
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Abstract:
The insertion loss of acoustic radiation of damped cylindrical shell described by 3-D elasticity Navier equations under radial harmonic applied load in fluid is presented. The classical integral transform technique, potential theory and Lamè resolution are used to derive the solutions of Navier equations. The higher precision inversion computation is introduced to solve the linear equations. Comparing with acoustic radiation of one-layer cylindrical shell, the influence of thickness, mass density, dilatational wave loss factor and Young’s modulus of damping material and circumferential mode number of the cylindrical shell on the insertion loss is concluded. The theoretical model in the paper can be used to deal with the arbitrary thickness and any frequency of the coated layer in dynamic problem. The conclusions may be of theoretical reference to the application of damping material to noise and vibration control of submarines and underwater pipes.

References:

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Last Update: 2011-04-29