Simultaneous periodic output feedback control of a smart cantilever beam with data fusion

This paper presents the design and simulation of simultaneous periodic output feedback controller to minimize structural vibration using piezoelectric actuator and sensor. The vibrating modes are measured by two homogeneous piezoelectric sensors. Sensors output are applied to individual information filters for estimating the states and the states generated by these filters are fused, which is applied as input to the controller. The performance of the controller is evaluated by considering three smart cantilever beams which differ in length and mass. The controller is simulated by exciting the structures at resonance and it is observed that, data fusion improves the closed loop response of the system, as compared to the response obtained with single sensor.