ABSTRACT
Recent progress in piezoelectric materials for distributed actuators and sensors has triggered a considerable interest in smart structures. In general, the smart structures featuring surface-bonded or embedded piezoelectric actuators and/or sensors are primarily applied to vibration and position control of fl exible structural systems. Research on the vibration control of fl exible structures using piezoelectric actuators was initiated by Bailey and Hubbard [1]. They proposed simple but effective control algorithms for transient vibration control, namely, constant amplitude controller (CAC) and constant gain controller (CGC). Crawley and de Luis [2] analyzed the stiffness effect of piezoelectric actuators on the elastic property of the host structures. Baz and Poh [3] worked on the vibration control of the smart structures via a modifi ed independent modal space control by considering the effect of the bonding layer between the piezoelectric actuator and the host structure. Tzou [4] investigated the piezoelectric effect on vibration control through a modal shape analysis. Choi et al. [5] formulated a fi nite element model and controller for suppressing elastodynamic responses of high-speed industrial robotic systems featuring a set of piezoelectric actuators and sensors. More recently, Choi and Shin [6] applied the piezoceramic actuator to the end-point vibration control of a single-link fl exible manipulator.
