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Journal of Intelligent Material Systems and Structures
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19/5/573    most recent
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Multimodal Vibration Control of a Flexible Structure using Piezoceramic Sensor and Actuator

Vineet Sethi

Department of Mechanical Engineering, University of Houston, Houston, TX 77204, USA

Gangbing Song

Department of Mechanical Engineering, University of Houston, Houston, TX 77204, USA, gsong{at}uh.edu

This study presents results of multimodal vibration suppression of a smart flexible cantilever beam with piezoceramic actuator and sensor by using a pole placement controller. Piezoceramic PZT (lead zirconate titanate) patches are surface-bonded on the beam and function as actuator and sensor. Nonparametric identification for the dynamics of the first three modes is carried out. From the nonparametric model, a parametric model is identified to assist the control system design. The identified model is used for state estimation and development of control algorithm. A linear pole placement controller is designed and simulated using the identified model. Experimental results demonstrate the effectiveness of observer-based multimodal active vibration control of the structure using piezoceramic smart materials.

Key Words: piezoceramics • pole placement • system identification • observer • vibration suppression • active vibration control.

This version was published on May 1, 2008

Journal of Intelligent Material Systems and Structures, Vol. 19, No. 5, 573-582 (2008)
DOI: 10.1177/1045389X07077853
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