Hybrid Control Method of Beams using Two Kinds of Smart Material
Sun Dongchang^1,2 Song Zhen²  Wang Dajun³ Wei Zhi¹ Zheng Zuoxin¹
(1 Hebei University of Technology, Tianjin, 300132)
(2 Beijing Institute of Control Engineering, Beijing, 100080)
(3 Peking University, Beijing, 100871)

Abstract: A hybrid control scheme for vibration control of smart beams is presented in which the passive control method is used to suppress the vibration with large amplitude by taking advantage of the supper elasticity of shape memory alloy, and the   active control method is used simultaneously to perform precise control by using distributed segmented piezoelectric sensors and actuators. The simulation results show that control effect of the hybrid method is much better than that of the distributed piezoelectric element method itself.
Keywords: smart structure, vibration control, piezoelectric modal sensor,piezoelectric modal actuator, shape memory alloy.