Abstract
A control methodology for suppressing the elastodynamic responses of high-speed flexible linkage mechanism is presented by adopting the concept of smart structures featuring piezoelectric films. The dynamics of piezoelectric actuators and sensors bonded on the flexible link are developed for a one-dimensional beam model. The linear optimal feedback control law with a Luenberger observer is employed. The instability caused by the combined effect of control and observation spillover is investigated and carefully prevented. Numerical simulation is performed to evaluate the improvement of elastodynamic responses.
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