Generalized-Disturbance Rejection Control for Vibration Suppression of Piezoelectric Laminated Flexible Structures

Figure 8

The time domain response of the controlled and uncontrolled smart beam under a harmonic disturbance with the first eigenfrequency (assumed as unknown): (a) sensor output, (b) control input, and (c) relative error of estimated disturbance.

(a)

(b)

(c)