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Sliding Mode Control with Fuzzy Tuning for Position Tracking of an Electro-Hydraulic Actuator

100%

Antić D. , Nikolić V. , Mihajlov M. , Aleksić K.

Machine Dynamics Problems

2002

tom Vol. 26, No. 1

81-93

This paper considers the position control problem of an electro-hydraulic actuator subjected to parameter uncertainties and an external disturbance. The system is described by a comprehensive model that accounts for nonlinearities and friction effects. Friction in the hydraulic cylinder and load variations are taken into account as the external disturbance. The variable structure control with a sliding mode is used in the first step of the controller design. In order to overcome known drawbacks of the sliding mode control, fuzzy logic is applied. The simulation results show good tracking performance and strong robustness.

Process razlozenia apatita

100%

Mihajlov M. , Blinicev V. , Postnikova I.

tom R. 105, z. 2-M

205-212

The purpose of the given work is intensification process of decomposition of apatite in manufacture of a phosphoric acid. We had been offered various ways mechanical activation apatite. Together with it we research process mechanical loading apatite and carry out kinetic and diffusion calculations.