The Vibro-Acoustic Characteristics of the Cylindrical Shell Partially Submerged in the Fluid

Abstract:

The characteristics of the sound radiation and vibrational power flow of the partially submerged cylindrical shell under a harmonic excitation are studied. The approximate acoustic boundary of the free surface is used to solve the fluid domain. The structure-fluid coupling equation is established based on the Flügge and Helmholtz theories. The far-field sound pressure is calculated and compared with that in infinite field. It is found that the far-field sound pressure presents large gap in different immersion status in the presence of the free surface while the results of the input power flow in these cases have less differences.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 2303-2311
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.2303
• Online since: May 2012
• Authors: Wen Bing Ye, Tian Yun Li, Xiang Zhu
• Keywords: Cylindrical Shell, Far-Field Sound Pressure, Free Surface, Vibro-Acoustic Characteristics

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