Effective Selection of Piezoceramic Actuators for an Experimental Flexible Wing

The effectiveness of individual or subsets of piezoceramic actuators are investigated in terms of their contributions to the joint controllability and observability for a e xed set of sensors. The method used is based on the decomposition of the Hankel singular values in terms of individual sensor and actuator combinations for e exible structures. The degree of participation of the individual structural modes in the e utter control problem is used to weigh the actuator selection metric in the feedback loop. Simulation results based on H2 and H1 control law designs indicate that closed loop performance can be improved signie cantly and the performance improvement is independent of the particular type of control law.