Results 21 to 30 of about 16,705 (192)

A Heterogeneous Parallel Algorithm for Euler-Lagrange Simulations of Liquid in Supersonic Flow

open access: yesApplied Sciences, 2023
In spite of its prevalent usage for simulating the full-field process of the two-phase flow, the Euler–Lagrange method suffers from a heavy computing burden.
Xu Liu   +7 more
doaj   +1 more source

Trajectory Tracking Control of Euler–Lagrange Systems Using a Fractional Fixed-Time Method

open access: yesFractal and Fractional, 2023
The results of this research provide fixed-time fractional-order control for Euler–Lagrange systems that are subject to external disturbances. The first step in the process of developing a new system involves the introduction of a method known as ...
Saim Ahmed   +3 more
doaj   +1 more source

Fractional variational problems depending on indefinite integrals [PDF]

open access: yes, 2012
We obtain necessary optimality conditions for variational problems with a Lagrangian depending on a Caputo fractional derivative, a fractional and an indefinite integral.
Pooseh, Shakoor   +8 more
core   +2 more sources

Design of Distributed Interval Observers for Multiple Euler–Lagrange Systems

open access: yesMathematics, 2023
This paper investigates the problem of distributed interval estimation for multiple Euler–Lagrange systems. An interconnection topology is supposed to be strongly connected.
Zhihang Yin, Jun Huang, Thach Ngoc Dinh
doaj   +1 more source

On the structure of minimizers of causal variational principles in the non-compact and equivariant settings [PDF]

open access: yes, 2012
We derive the Euler-Lagrange equations for minimizers of causal variational principles in the non-compact setting with constraints, possibly prescribing symmetries.
Finster, Felix, Bernard, Yann
core   +1 more source

An efficient design for solving discrete optimal control problem with time-varying multi-delays [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2022
The focus of this article is on the study of discrete optimal control problems (DOCPs) governed by time-varying systems, including time-varying delays in control and state variables.
S.M. Abdolkhaleghzade   +2 more
doaj   +1 more source

A Survey of Euler Diagrams [PDF]

open access: yes, 2014
Euler diagrams visually represent containment, inpresstersection and exclusion using closed curves. They first appeared several hundred years ago, however, there has been a resurgence in Euler diagram research in the twenty-first century.
Rodgers, Peter
core   +1 more source

Safe-by-design control for Euler-Lagrange systems [PDF]

open access: yes, 2022
Safety-critical control is characterized as ensuring constraint satisfaction for a given dynamical system. Recent developments in zeroing control barrier functions (ZCBFs) have provided a framework for ensuring safety of a superlevel set of a single ...
Cortez, Wenceslao Shaw,   +1 more
core   +1 more source

An Efficient Fault Tolerant Control Scheme for Euler–Lagrange Systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
Every closed-loop system holds a level of fault tolerance, which could be increased by using a fault tolerant control (FTC) scheme. In this paper, an efficient FTC scheme for a class of nonlinear systems (Euler–Lagrange ones) is proposed, which ...
Leal-Leal Ivon E., Alcorta-Garcia Efrain
doaj   +1 more source

Partial Lagrangian for Efficient Extension and Reconstruction of Multi-DoF Systems and Efficient Analysis Using Automatic Differentiation

open access: yesRobotics, 2022
In the fields of control engineering and robotics, either the Lagrange or Newton–Euler method is generally used to analyze and design systems using equations of motion.
Takashi Kusaka, Takayuki Tanaka
doaj   +1 more source

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