The reductions of noise, caused by structural vibrations and the diminishing of devastating vibrations have been of great interest. The design of controllers for smart actuated structures is a challenging problem due to the presence of non-linearities in the structural system and actuators, the limited availability of control force, and the non-availability of accurate mathematical models. The application of adaptive control algorithms for vibration suppression of smart structures is investigated in this paper. The adaptive controller adapts to the parameter variations of the structural system by updating the controller gains. Self tuning regulator is used to force the vibration level with-in the minimum acceptable limit. In this paper, adaptive control algorithms are investigated for designing active controllers for smart structures. Simulation studies presented in this thesis indicate the superior performance of the adaptive controller for vibration suppression.

Keywords: Adaptive controller, Self tuning regulator ( STR), Smart structures