Vibration control of beams with negative capacitive shunting of interdigital electrode piezoceramics

被引：94

作者：

Park, CH ^{[1
]}

Baz, A

机构：

[1] Pohang Univ Sci & Technol, Dept Mech Engn, Pohang 790784, South Korea

[2] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

来源：

JOURNAL OF VIBRATION AND CONTROL | 2005年 / 11卷 / 03期

关键词：

interdigital electrode piezoceramics; shunt circuit; negative capacitive shunting; multimode vibration control;

D O I：

10.1177/107754605040949

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A pair of interdigital electrode (IDE) piezoceramics is used to simultaneously suppress multimode vibrations of a cantilevered beam. This is achieved by connecting the IDE piezoceramics in parallel to a negative capacitive shunt circuit. The governing equations of motion of an IDE piezo/bearn system and associated boundary conditions are derived using the Hamilton principle. The obtained mathematical model is validated experimentally Attenuations ranging between 5 and 20 dB are obtained for all the vibration modes over the frequency range of 0-3000 Hz. The presented theoretical and experimental techniques provide invaluable tools for designing simple and effective passive vibration dampers for structures with closely packed modes.

引用

页码：331 / 346

页数：16

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