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http://dx.doi.org/10.5050/KSNVN.2002.12.1.005

Multi-modal Vibration Control of Intelligent Laminated Composite Plates Using System Identification and Optimal Control  

김정수 (현대자동차 연구소)
강영규 (인하대학교 기계공학과)
박현철 (포항공과대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.12, no.1, 2002 , pp. 5-11 More about this Journal
Abstract
Active vibration control of intelligent laminated composite plates is performed experimental1y Laminated composite place is modeled by the system identification method. For the system identification process, the laminated composite place is excited by two piezoelectric actuators with PRBS signals. At the same time, the displacement of the laminated composite plate is measured by a gap sensor. From these excited PRBS signals and the measured displacement sequence, system parameters of the laminated composite plate are estimated using a recursive prediction error method. Model of the laminated composite plate with two piezoeletric actuators is assumed to be the form of ARMAX. From the estimated ARHMAX model, a state space equation of the observable canonical form is obtained. With this state space equation, a controller and an observer for active vibration control is designed using the optimal control method. Controller and observer are implemented on a digital system. Experiments on the vibration control are Performed with changing the outer layer fiber orientation of intelligent composite plates.
Keywords
Intelligent Laminated Composite Plate; Multi-modal Vibration Control; System Identification; Optimal Control;
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Times Cited By KSCI : 2  (Citation Analysis)
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