Results 11 to 20 of about 219,479 (266)

Lagrange–Poincaré field equations

open access: yesJournal of Geometry and Physics, 2011
Submitted to Journal of Geometry and Physics, 45 pages, 1 ...
Ellis, David C. P.   +3 more
openaire   +5 more sources

Continuous Choreographies as Limiting Solutions of $N$-body Type Problems with Weak Interaction [PDF]

open access: yes, 2016
We consider the limit $N\to +\infty$ of $N$-body type problems with weak interaction, equal masses and $-\sigma$-homogeneous potential ...
Castaneira, Reynaldo   +2 more
core   +3 more sources

Dynamic modeling of dual-arm cooperating manipulators based on Udwadia–Kalaba equation

open access: yesAdvances in Mechanical Engineering, 2016
Dual-arm cooperating manipulators subject to a certain constraint brought about by the desired trajectory and geometric constraint show high nonlinearity and coupling in their dynamic characteristic. Therefore, it is hard to build dynamical equation with
Jia Liu, Rong Liu
doaj   +1 more source

Necessary Condition for an Euler-Lagrange Equation on Time Scales

open access: yesAbstract and Applied Analysis, 2014
We prove a necessary condition for a dynamic integrodifferential equation to be an Euler-Lagrange equation. New and interesting results for the discrete and quantum calculus are obtained as particular cases. An example of a second order dynamic equation,
Monika Dryl, Delfim F. M. Torres
doaj   +1 more source

Lie symmetries and conserved quantities of fractional nonconservative singular systems

open access: yesInternational Journal of Mechanical System Dynamics, 2023
In this paper, according to the fractional factor derivative method, we study the Lie symmetry theory of fractional nonconservative singular Lagrange systems in a configuration space.
Mingliang Zheng
doaj   +1 more source

Simple method to the dynamic modeling of industrial robot subject to constraint

open access: yesAdvances in Mechanical Engineering, 2016
It is a common movement type in industrial production for the end-effector of industrial robot executing tasks according to desired track. High nonlinearity and coupling are shown from the dynamic characteristic of industrial robot because of the ...
Jia Liu, Rong Liu
doaj   +1 more source

Fractional-Order Euler-Lagrange Equation for Fractional-Order Variational Method: A Necessary Condition for Fractional-Order Fixed Boundary Optimization Problems in Signal Processing and Image Processing

open access: yesIEEE Access, 2016
This paper discusses a novel conceptual formulation of the fractional-order Euler-Lagrange equation for the fractional-order variational method, which is based on the fractional-order extremum method. In particular, the reverse incremental optimal search
Yi-Fei Pu
doaj   +1 more source

On the variational principle in the unfolded dynamics

open access: yesPhysics Letters B, 2022
The interplay between off-shell and on-shell unfolded systems is analyzed. The formulation of invariant constraints that put an off-shell system on shell is developed by adding new variables and derivation in the target space, that extends the original Q-
A.A. Tarusov, M.A. Vasiliev
doaj   +1 more source

16QAM Blind Equalization via Maximum Entropy Density Approximation Technique and Nonlinear Lagrange Multipliers

open access: yesThe Scientific World Journal, 2014
Recently a new blind equalization method was proposed for the 16QAM constellation input inspired by the maximum entropy density approximation technique with improved equalization performance compared to the maximum entropy approach, Godard’s algorithm ...
R. Mauda, M. Pinchas
doaj   +1 more source

Analysis of constraint forces in multibody systems based on the null space matrix method of differential equation type

open access: yesNihon Kikai Gakkai ronbunshu, 2020
In previous papers, the author presented motion analysis methods of multibody systems. In the presented methods, the null space matrix for the constraint Jacobian is obtained by solving a differential equation, then the Lagrange multipliers are ...
Keisuke KAMIYA
doaj   +1 more source

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