My interests include artificial intelligence and its applications to nonlinear adaptive control, system identification, and managing structure damage. I have been studying the sliding mode control and fuzzy theory. Controllers for a class of nonlinear control systems subjected to uncertainty and disturbance were proposed. They are combinations of adaptive fuzzy sliding mode controllers and compensators including fuzzy-based compensators. I have been also studying Artificial Neural Networks (ANN), Fuzzy Logic (FL), Wavelet Transform (WT), and their applications. I proposed new algorithms for training of ANN, building adaptive neuro-fuzzy inference systems (ANFIS), and solutions for wavelet quantification analysis. Based on these, identifying systems and establishing intelligent controllers for smart structures and systems such as semi-active magnetorheological (MR) vehicle suspensions were presented. Besides, I presented solutions for combination of wavelet quantification and ANN, ANFIS to identify and predict structure damages.