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Design and active vibration control of composite beams with bonded piezoelectric sensors and actuators

Stavroulakis Georgios, D. Marinova, G. Foutsitzi, E. Hadjigeorgiou

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Περίληψη

Mathematical formulation and the computational model for the activevibration control of a slender beam bonded with piezoelectric sensorsand actuators are presented.The problem of active control is studied by using the classical LQRand the robust H2 optimal approaches.The comparison between the two proposed control laws shows thatboth strategies are effective. The second method is preferred due to therobustness properties.The numerical simulations show that the proposed methods are usablefor vibration suppression of a laminated beam subjected to differentkind of loading.A detailed investigation of the dynamical response of active beamsand other structures will give us confidence in order to propose concreteindustrial applications. Among others, suppression of wind vibrationsand noise reduction in lightweight (e.g., aluminium) facades inarchitecture and civil engineering can be achieved by means of theproposed method.

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