Resonant control of structural vibration using charge-driven piezoelectric actuators

Driving piezoelectric actuators by charge, or current rather than voltage is known to significantly reduce the hysteretic nature of these actuators. This paper further investigates properties of piezoelectric transducers driven by charge amplifiers, and proposes multivariable resonant controllers for vibration control of piezoelectric laminates. The paper reports experimental implementation of a multivariable resonant controller on a piezoelectric laminate cantilevered beam.