MODELING AND CONTROL OF ACOUSTIC STRUCTURE INTERACTION PROBLEMS VIA PIEZOCERAMIC ACTUATORS - 2-D NUMERICAL EXAMPLES

被引：19

作者：

BANKS, HT

SILCOX, RJ

SMITH, RC

机构：

[1] Center for Research in Scientific Computation, North Carolina State University, Raleigh, NC

[2] NASA Langley Research Center, Hampton, VA

[3] ICASE, NASA Langley Research Center, Hampton, VA

来源：

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 1994年 / 116卷 / 03期

关键词：

D O I：

10.1115/1.2930440

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The modeling and active control of acoustic pressure in a 2-D cavity with a flexible boundary (a beam) is considered. Control is implemented in the model via piezoceramic patches on the beam, which are excited in a manner so as to produce pure bending moments. Approximation techniques are discussed and, by writing the resulting system as an abstract Cauchy equation, the problem of reducing interior pressure fluctuations can be posed in the context of an LQR time domain state space formulation. Examples illustrating the dynamic behavior of the coupled system, as well as demonstrating the viability of the control method on a variety of problems with periodic forcing functions, are presented.

引用

页码：386 / 396

页数：11

共 20 条

[1]

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[2]

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[9]

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[10]

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