Articles with "variational integrators" as a keyword



Variational Integrators for a new Lagrangian Approach to Control Affine Systems with a Quadratic Lagrange Term

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Published in 2025 at "Journal of Nonlinear Science"

DOI: 10.1007/s00332-025-10229-5

Abstract: In this work, we analyse the discretisation of a recently proposed new Lagrangian approach to optimal control problems of affine-controlled second-order differential equations with cost functions quadratic in the controls. We propose exact discrete and… read more here.

Keywords: variational integrators; control; integrators new; new lagrangian ... See more keywords

Construction and analysis of higher order variational integrators for dynamical systems with holonomic constraints

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Published in 2017 at "Advances in Computational Mathematics"

DOI: 10.1007/s10444-017-9520-5

Abstract: In this work, variational integrators of higher order for dynamical systems with holonomic constraints are constructed and analyzed. The construction is based on approximating the configuration and the Lagrange multiplier via different polynomials. The splitting… read more here.

Keywords: order; analysis; variational integrators; higher order ... See more keywords

Lagrangian and Hamiltonian Taylor variational integrators

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Published in 2017 at "BIT Numerical Mathematics"

DOI: 10.1007/s10543-017-0690-9

Abstract: In this paper, we present a variational integrator that is based on an approximation of the Euler–Lagrange boundary-value problem via Taylor’s method. This can be viewed as a special case of the shooting-based variational integrator.… read more here.

Keywords: lagrangian hamiltonian; variational integrators; variational integrator; method ... See more keywords

Forced Variational Integrators for the Formation Control of Multiagent Systems

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Published in 2021 at "IEEE Transactions on Control of Network Systems"

DOI: 10.1109/tcns.2021.3065635

Abstract: Formation control of autonomous agents can be seen as a physical system of individuals interacting with local potentials, and whose evolution can be described by a Lagrangian function. In this article, we construct and implement… read more here.

Keywords: forced variational; control; formation control; variational integrators ... See more keywords

Applications of variational integrators to couple of linear dynamical models discussing temperature distribution and wave phenomena

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Published in 2024 at "Modern Physics Letters B"

DOI: 10.1142/s0217984924504359

Abstract: Variational Integrator (VI) is a numerical technique, in which the Lagrangian of the system is used as the action integral. It is a special type of numerical solution that preserves the energy and momentum of… read more here.

Keywords: linear dynamical; variational integrators; applications variational; integrators couple ... See more keywords
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Performance Assessment of Variational Integrators for Thermomechanical Problems

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Published in 2018 at "Journal of Theoretical and Applied Mechanics"

DOI: 10.2478/jtam-2018-0008

Abstract: Abstract Structure-preserving integrators are in the focus of ongoing research because of their distinguished features of robustness and long time stability. In particular, their formulation for coupled problems that include dissipative mechanisms is still an… read more here.

Keywords: thermomechanical problems; assessment variational; variational integrators; performance assessment ... See more keywords