Abstract
In this research a bladed disk model is equipped with a pair of collocated piezoelectric actuators on each of the eight blades. Thereby, one is used for engine order excitation and one is used for piezoelectric shunt damping. In a case study the effects of a tuned inductance resistance network are compared to piezoelectric switching techniques. In the latter case the Harmonic Balance Method is used to derive a frequency dependent complex stiffness and calculate the linearized Frequency Response Function. Therefore, one bladed disk sector with cylic symmetry constraints is modeled with the Finite Element Method and reduced with a modal reduction technique. In parameter studies different shunt damping techniques are compared with respect to their effectiveness. Thereby, the passive tuned inductance resistance network shows a good damping effect in a frequency range around the resonance frequency of the network. In case of the adaptive switching techniques the frequency range of the damping effect is limited by the resonance frequency of the network only.
