This paper addresses the problem of the fractional sliding mode control (FSMC) for a MEMS optical switch. The proposed scheme utilizes a fractional sliding surface to describe dynamic behavior of the system in the sliding mode stage. After a comparison with the classical integer-order counterpart, it is seen that the control system with the proposed sliding surface displays better transient per...

Designing a robust controller is very important in the control of outdoor unmanned aerial vehicles. This paper presents design procedures and implementation super-twisting sliding mode controller, which nonlinear controller. The applied to an over-actuated quadrotor manipulator with four tiltable rotors. A serial two links mounted on bottom quadrotor. possesses property decoupling its position ...

in this paper a mesh-free model of the functionally graded material (fgm) plate is presented.  the piezoelectric material as a sensor and actuator has been distributed on the top and bottom of the plate, respectively. the formulation of the problem is based on the classical laminated plate theory (clpt) and the principle of virtual displacements. moreover, the particle swarm optimization (pso) ...

the problem of relative motion control for spacecraft formation flying in eccentric orbits is considered in this paper. due to the presence of nonlinear dynamics and external disturbances, a robust fuzzy sliding mode controller is developed. the slopes of sliding surfaces of the conventional sliding mode controller are tuned according to error states using a fuzzy logic and reach the pre-define...

This paper proposes a robust algorithm based on fixed-time sliding mode controller (FTSMC) for Quadrotor aircraft. approach is Lyapunov theory, which guarantees system stability. Nonlinear error dynamics techniques are used to achieve accurate trajectory tracking in the presence of disturbances. The performance FTSMC compared with typical non-singular terminal (NTSMC) evaluate its effectiveness...

one of the most important challenges in nonlinear, multi-input multi-output (mimo) and time variant systems (e.g., robot manipulator) is designing a controller with acceptable performance. this paper focused on design a new artificial non linear controller with on line tunable gain applied in the robot manipulator. the sliding mode fuzzy controller (smfc) was designed as 7 rules mamdani’s infer...

In this paper, we presented a strategy for accurate trajectory tracking control of quadrotor with unknown disturbances. To guarantee that the errors all system state variables converge to zero in finite time and eliminate chattering phenomenon caused by switching action, combines linear prediction model disturbances fuzzy sliding mode (SMC) based on logical framework side conditions (LFSC) was ...