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Conventional sliding mode control (SMC) is so-called robust to the system uncertainty and the external disturbance, however, it requires the knowledge about the upper bound of uncertainties and external disturbances. In the practical system, uncertainties and external disturbances are often unknown. A adaptive backstepping sliding mode controller (ABSMC) is proposed to deal with the uncertainty in...
Electro-hydraulic servo valve is the key element of hydraulic servo system. The failure of electro-hydraulic servo valve has great influence to the reliability of hydraulic servo system. The valve element wear failure has a highly frequency and concealment. Failure simulation technology has been widely used in astronautics field, and it also made success in other field. Composition and structure of...
Because of its high power-to-weight ratio, safe, clean and other advantages, pneumatic servo systems are widely applied in the factory automation and the other applications. However, due to the compressibility of gas and friction, the high precision control is a challenge and key problem of pneumatic servo system. In this paper, an adaptive backstepping controller is designed to control rodless cylinder...
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