Application of a sound radiation control method to actively control sound transmission through plates

被引：0
|
作者：
Sun C. [1 ]
Zhao D.-Y. [1 ]
机构：
[1] School of Naval Architecture Engineering, Dalian University of Technology
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2010年 / 31卷 / 01期
关键词：
FEM/BEM; Independent modal space control; Piezoelectric patches; Transmission loss;
D O I：
10.3969/j.issn.1006-7043.2010.01.002
中图分类号：
学科分类号：
摘要：
In order to reduce sound transmission loss at low frequencies, a type of active structural acoustic control method was proposed that was based on the independent modal space method. According to the corresponding expressions of the relationship between vibration mode and radiation mode, the sound radiation mode control equation was deduced in a decoupled independent modal space. Numerical simulations of active control of the transmission of sound through plates was developed based on H∞ control, using the finite element method along with the boundary element method (FEM-BEM) as the control equation for sound radiation modes. This method of controlling sound radiation was tested in a simulation and shown to improve control of transmission loss compared with the independent modal space control method (IMSC).
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页码：8 / 14
页数：6
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