Simultaneous Stabilization of Piezo Actuated Structures using Fast Output Sampling Control Involving Data Fusion

This paper presents the design of a simultaneous Fast Output Sampling (FOS) feedback controller, for minimizing the structural vibration of three cantilever beam structures, of different length and mass. Vibrations of each of these structures are measured by two homogeneous piezoelectric sensors, whose outputs are used for estimating the states of that particular structure, by a pair of information filter. The outputs of these filters are fused using information fusion algorithm, which is then applied as controller input. The controller designed is used to minimize the first two modes of vibration of the structures. Controller performance is demonstrated by exciting the structures at their individual resonant conditions. Simulation results show that use of data fusion results in improved closed loop performance.