Acoustic Radiation of Damped Cylindrical Shell with Arbitrary Thickness in the Fluid Field

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 equa...

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Bibliographic Details
Published in:Journal of marine science and application 2010-12, Vol.9 (4), p.431-438
Main Authors: Zhang, Jun-jie, Li, Tian-yun, Ye, Wen-bing, Zhu, Xiang
Format: Article
Language:English
Subjects:
Electrical Machines and Networks
Engineering
Geotechnical Engineering & Applied Earth Sciences
Machinery and Machine Elements
Navier方程
Offshore Engineering
Power Electronics
Research Papers
圆柱壳
插入损耗
计算精度
辐射阻尼
阻尼材料
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Summary: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.
ISSN:1671-9433
1993-5048
DOI:10.1007/s11804-010-1030-5