Results 111 to 120 of about 237,894 (262)

Adaptive Motion Control with State Constraints Using Barrier Lyapunov Functions

open access: yesPRZEGLĄD ELEKTROTECHNICZNY, 2016
A servo control with unknown system parameters and the constraints imposed on the maximal position and velocity is considered. The barrier Lyapunov functions approach is applied to assure the preservation of bounds in any conditions. The system performance is compared for three cases of the controller design: based on quadratic Lyapunov functions ...
openaire   +1 more source

A novel RNN terminal sliding mode controller design based on barrier function for uncertain quad-rotor UAV systems

open access: yesAdvances in Mechanical Engineering
A new triple-loop recurrent neural network (TLRNN) super-twisting terminal sliding mode control (TSMC) scheme based on the barrier function is proposed for the attitude tracking control of flight systems with unknown disturbances and parameter ...
Qinglei Li
doaj   +1 more source

Conley barriers and their applications: Chain-recurrence and Lyapunov functions

open access: yesTopology and its Applications, 2009
Conley [\textit{C. Conley}, Isolated invariant sets and the Morse index. Regional Conference Series in Mathematics. No.~38. (Providence), R.I.: American Mathematical Society (AMS). (1978; Zbl 0397.34056)] studied the structure of the set of chain-recurrent points for a continuous map \(f:X\to X\) of a compact metric space in terms of attractors of \(f\)
openaire   +2 more sources

Unified neural output-constrained control for space manipulator using tan-type barrier Lyapunov function

open access: yesAdvances in Space Research, 2022
H. Jahanshahi   +3 more
semanticscholar   +1 more source

An LMI adaptive-barrier function global sliding mode control of uncertain nonlinear systems with input saturation

open access: yesAin Shams Engineering Journal
This paper proposes a barrier function-based adaptive control strategy with a nonlinear sliding surface for a class of uncertain dynamic systems with input saturation.
Rahim Rahimpour   +6 more
doaj   +1 more source

Short- and Long- Time Transport Structures in a Three Dimensional Time Dependent Flow

open access: yes, 2014
Lagrangian transport structures for three-dimensional and time-dependent fluid flows are of great interest in numerous applications, particularly for geophysical or oceanic flows.
Chabreyrie, Rodolphe   +1 more
core   +1 more source

Barrier function-based adaptive synergetic control with state constraints for manipulator with uncertainty and input saturation

open access: yesAin Shams Engineering Journal
This study proposes a barrier function-based adaptive nonsingular terminal synergetic control to mitigate chattering and uncertainty in a nonlinear system with hard state constraints and actuator saturation.
Muhammad Auzan, Yong-Lin Kuo
doaj   +1 more source

Safe and Dynamically Feasible Motion Planning Using Control Lyapunov and Barrier Functions

open access: yesIEEE Transactions on Robotics
This paper considers the problem of designing motion planning algorithms for control-affine systems that generate collision-free paths from an initial to a final destination and can be executed using safe and dynamically-feasible controllers. We introduce the C-CLF-CBF-RRT algorithm, which produces paths with such properties and leverages rapidly ...
Pol Mestres   +2 more
openaire   +2 more sources

Ultra-local model-based predefined-time assist-as-needed control for upper limb patient-exoskeleton system under input and performance constraints

open access: yesAIMS Mathematics
In this work, an ultra-local model-based predefined-time assist-as-needed controller (UPTAC) is presented for a upper limb patient-exoskeleton system (ULPES) under input and performance constraints. The designed UPTAC has a dual-loop control architecture.
Honglin Xie, Yangchun Wei
doaj   +1 more source

Safe navigation of a quadrotor UAV with uncertain dynamics and guaranteed collision avoidance using barrier Lyapunov function

open access: yesAerospace Science and Technology, 2022
Hamed Habibi   +4 more
semanticscholar   +1 more source

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