Active modal control simulation of vibro-acoustic response of a fluid-loaded plate

被引：25

作者：

Li, Sheng ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Sch Naval Architecture, Fac Vehicle Engn & Mech, Dalian 116024, Peoples R China

来源：

JOURNAL OF SOUND AND VIBRATION | 2011年 / 330卷 / 23期

关键词：

BOUNDARY-ELEMENT APPROACH; SOUND RADIATION; VIBRATION;

D O I：

10.1016/j.jsv.2011.07.001

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Active modal control simulation of vibro-acoustic response of a fluid-loaded plate is presented. The active modal control of the vibro-acoustic response is implemented using piezoelectric actuators/sensors. The active modal damping is added to the coupled system via negative velocity feedback. The feedback gain between the piezoelectric actuators/sensors for the modal control is obtained using the in-vacuo modal matrix and the incompressible fluid-loaded modal matrix. The modal control performance of structural vibration and acoustic radiation of a baffled plate is numerically studied. It is shown that the proposed method increases the modal damping ratio and achieves reduction in the mean square velocity and the sound power for given modes of the fluid-loaded plate. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：5545 / 5557

页数：13

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