The control of underactuated mechanical systems (UMS) remains an attracting field where researchers can develop their algorithms. To this date, various linear and nonlinear techniques using classical intelligent methods have been published in literature. In work, adaptive controller sliding mode (SMC) wavelets network (WN) is proposed for a class second-order UMS with two degrees freedom (DOF)....

In this work, a prescribed-time second-order sliding mode (SOSM) controller is constructed to address class of nonlinear systems in the presence asymmetric output constraints. To handle constraints, frequently-used barrier Lyapunov function employed. Meanwhile, time-varying scaling introduced ensure convergence closed-loop system. On basis, SOSM by inserting BLF and into modified power integrat...

In this paper, a quaternion-based finite-time sliding mode attitude controller is designed for a spacecraft performing high-thrust orbital maneuvers, with cold gas thrusters as its actuators. The proposed controller results are compared with those of a quaternion feedback controller developed for the linearized spacecraft dynamics, in terms of settling time, steady-state error, number of thrust...