Dynamic behavior and sound transmission analysis of a fluid-structure coupled system using the direct-BEM/FEM

被引：53
|
作者：
Tong, Z.
Zhang, Y.
Zhang, Z. [1 ]
Hua, H.
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Vibrat Shock & Noise, Shanghai 200240, Peoples R China
[2] Inst Shanghai Marine Equipment Res, Shanghai 200031, Peoples R China
来源：
JOURNAL OF SOUND AND VIBRATION | 2007年 / 299卷 / 03期
关键词：
D O I：
10.1016/j.jsv.2006.06.063
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A direct-BEM/Fem method was proposed to analyze the vibration and acoustic radiation characteristics of a submerged structure. Model parameters of the structure and the fluid-structure interaction due to surrounding water were analyzed by using FEM and direct BEM. Vibration velocity of the outer hull surface and underwater sound pressure were computed through modal superposition technique. The direct-BEM/FEM method was first validated by analyzing a submerged cylindrical shell, then was used to analyze the vibro-acoustic behavior of a submarine stern structure. The results have demonstrated the direct-BEM/FEM method is more effective than FEM in computing the underwater sound radiation of the stern structure. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：645 / 655
页数：11
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