ABSTRACT
A considerable amount of work has been performed to further utilize piezoelectric materials for structural control by integrating them with external electrical circuits to form piezoelectric networks. Such networks can be utilized for passive, semi-active, and active-passive hybrid vibration suppressions. Because of their electromechanical coupling characteristics, piezoelectric materials have been explored extensively for structural vibration control applications. In a purely passive situation, piezoelectric materials are usually integrated with an external shunt circuit. Piezoelectric materials realize a significant change in mechanical stiffness between their open-circuit and short-circuit states. The piezoelectric network can result in high-performance vibration control through the dual effects of the shunt circuit. The active actions in an active-passive hybrid piezoelectric network can also be used to tune passive component parameters. The chapter focuses on systems utilizing active-passive hybrid piezoelectric network (APPN) for general modal damping and control. It has also been found that the APPN configuration could be very effective for narrowband vibration rejection.
