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

被引：10
|
作者：
Ye, Wenbing [1 ]
Lli, Tianyun [1 ]
Zhu, Xiang [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Naval Architecture & Ocean Engn, Wuhan 430074, Peoples R China
来源：
PROGRESS IN CIVIL ENGINEERING, PTS 1-4 | 2012年 / 170-173卷
关键词：
vibro-acoustic characteristics; cylindrical shells; far-field sound pressure; free surface; INPUT POWER-FLOW;
D O I：
10.4028/www.scientific.net/AMM.170-173.2303
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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 Flugge 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.
引用
收藏
页码：2303 / 2311
页数：9
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