Stable adaptive systems
A new model-free adaptive sliding controller for active suspension system
International Journal of Systems Science
Design of a fuzzy sliding-mode synchronization controller for two different chaos systems
Computers & Mathematics with Applications
Computers & Mathematics with Applications
No-chattering sliding mode control chaos in Hindmarsh-Rose neurons with uncertain parameters
Computers & Mathematics with Applications
Tracking control of a biaxial piezo-actuated positioning stage using generalized Duhem model
Computers & Mathematics with Applications
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Recently, the micropositioner has become an important developing target for achieving the requirements of precision machinery. The piezo-actuating device plays a very important role in this application area. In this paper, a model-free adaptive sliding-mode controller is proposed for a 3D piezo-actuating system because of the system's hysteresis nonlinearity and time-varying characteristics. This control strategy employs the functional approximation technique to establish the unknown function for releasing the model based requirements of the sliding-mode control. The update laws for the coefficients of the Fourier series function parameters are derived from a Lyapunov function to guarantee the control system stability. To verify the effectiveness of the proposed controller, drilling process control using the designed controller is investigated in this paper.