Results 91 to 100 of about 1,541,248 (274)

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Parallel Algorithm for Conversation Laws with Unstructured Grids

工程科学与技术, 2015
:Efficient parallel algorithm on distributed-memory multi-computers was presented for solving Euler equations on unstructured grids.Domain decomposition method was employed to handle meshes properly and make each processor ...
马欣荣, 刘三阳
doaj  

Numerical method for the ground state solution of Logarithmic nonlinear Schrodinger equation

四川大学学报. 自然科学版, 2021
We construct a numerical method for computing the ground state solution of Logarithmic nonlinear Schrodinger equation. We firstly regularize the energy functional of the model and then compute the ground state solution by using the normalized gradient ...
FENG Zi-Xu, HE Wei-Qing, ZHANG Shi-Quan
doaj  

Error analysis of the implicit Euler scheme for the Maxwell–Kerr system

, 2023
We establish first-order convergence of the implicit Euler scheme for the quasilinear Maxwell equations with Kerr-type material laws. We only impose regularity assumption which are in accordance with the newly established wellposed theory for the PDE system. In recent literure CFL conditions had to be imposed on full discretizations of this system even
openaire   +2 more sources

High‐Order Sliding‐Mode control for MIMO Systems

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper extends Lyapunov‐based homogeneous high‐order sliding‐mode control to a class of uncertain non‐square multi‐input multi‐output (MIMO) nonlinear systems with a well‐defined vector relative degree. The considered systems admit a normal‐form representation with an uncertain but full‐row‐rank input‐gain matrix.
Jaime A. Moreno, Angel Mercado‐Uribe
wiley   +1 more source

Numerical analysis of a semi-implicit Euler scheme for the Keller-Segel model

ESAIM: Mathematical Modelling and Numerical Analysis
We study the properties of a semi-implicit Euler scheme widely used for time discretization of Keller-Segel equations in both parabolic-elliptic and parabolic-parabolic forms. We assume the initial mass of the cell density is sufficiently small to ensure that solutions of the continuous Keller-Segel equations exist globally in time.
Huang, Xueling, Goubet, Olivier, Shen, Jie   +2 more
openaire   +3 more sources

Feedback Linearisation with State Constraints

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Feedback Linearisation (FBL) is a widely used technique that applies feedback laws to transform input‐affine nonlinear control systems into linear control systems, allowing for the use of linear controller design methods such as pole placement.
Songlin Jin, Yuanbo Nie, Morgan Jones
wiley   +1 more source

A novel mid-point upwind scheme for fractional-order singularly perturbed convection-diffusion delay differential equation [PDF]

Iranian Journal of Numerical Analysis and Optimization
This study presents a numerical approach for solving temporal fractionalorder singularly perturbed parabolic convection-diffusion differential equations with a delay using a uniformly convergent scheme.
N.A. Endrie, G.F. Duressa
doaj   +1 more source

Sliding Motions on Non‐Euclidean State Spaces: A Differential‐Geometric Perspective

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper extends sliding‐mode control theory to nonlinear systems evolving on smooth manifolds. Building on differential geometric methods, we reformulate Filippov's notion of solutions, characterize well‐defined vector fields on quotient spaces, and provide a consistent geometric definition of higher‐order sliding modes.
Fernando Castaños
wiley   +1 more source

Linear System Identification and Control of a Low‐Cost High‐Performance Omnidirectional Marine Surface Vehicle for Swarming Applications

Journal of Field Robotics, EarlyView.
ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah, Gianni Cario, Alessandro Casavola, Marco Lupia, Francesco Tedesco   +4 more
wiley   +1 more source