Multimodal vibration control of a flexible structure using piezoceramic sensor and actuator

作者：Sethi Vineet; Song Gangbing

来源：Journal of Intelligent Material Systems and Structures, 2008, 19(5): 573-582.

DOI：10.1177/1045389X07077853

• piezoceramics
• pole placement
• system identification
• observer
• vibration suppression
• active vibration control

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.

• 出版日期2008-5