Semi-active control of a thin piezoactuated structure

被引：5

作者：

Bisegna, P ^{[1
]}

Caruso, G ^{[1
]}

Del Vescovo, D ^{[1
]}

Galeani, S ^{[1
]}

Menini, L ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, Dept Civil Engn, I-00133 Rome, Italy

来源：

SMART STRUCTURES AND MATERIALS 2000: DAMPING AND ISOLATION | 2000年 / 3989卷

关键词：

vibration suppression; LQG control; damped piezoelectric actuation; piezoelectric finite-elements;

D O I：

10.1117/12.384571

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Vibration damping of a cantilever plate is achieved by using a piezoelectric element simultaneously as passive single-mode device and active broad-band actuator. Control strategies are designed on the basis of a modal model of the coupled electromechanical structure. This model is obtained by using a suitable finite-element formulation together with a modal analysis. A purely passive single-mode control composed of an optimally tuned external RL shunt circuit and a purely active control based on classical LQG techniques are compared to a semi-active control obtained by tuning the external shunt circuit on the second vibration mode of the structure and using a LQG controller designed on the only first-mode model.

引用

页码：300 / 311

页数：12