An energy concerving modification of numerical methods for the integration of equations of motion

In the integration of the equations of motion of a system of particles, conventional numerical methods generate an error in the total energy of the same order as the truncation error. A simple modification of these methods is described, which results in exact conservation of the energy.

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Bibliographic Details
Main Authors: Robert A. Labudde, Donald Greenspan
Format: Article
Language:English
Published: Wiley 1987-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171287000218
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author Robert A. Labudde
Donald Greenspan
author_facet Robert A. Labudde
Donald Greenspan
author_sort Robert A. Labudde
collection DOAJ
description In the integration of the equations of motion of a system of particles, conventional numerical methods generate an error in the total energy of the same order as the truncation error. A simple modification of these methods is described, which results in exact conservation of the energy.
format Article
id doaj-art-b48e8820a4d840819b0a031740c171d1
institution Kabale University
issn 0161-1712
1687-0425
language English
publishDate 1987-01-01
publisher Wiley
record_format Article
series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-b48e8820a4d840819b0a031740c171d12025-02-03T01:07:51ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251987-01-0110117317910.1155/S0161171287000218An energy concerving modification of numerical methods for the integration of equations of motionRobert A. Labudde0Donald Greenspan1821 Hialeah Dr., Virginia Beach, 23462, VA, USADepartment of Mathematics, University of Texas, Arlington 76019, Texas, USAIn the integration of the equations of motion of a system of particles, conventional numerical methods generate an error in the total energy of the same order as the truncation error. A simple modification of these methods is described, which results in exact conservation of the energy.http://dx.doi.org/10.1155/S0161171287000218conventional numerical methodsordinary differential equationsmultiplicative parameterstruncation error.
spellingShingle Robert A. Labudde
Donald Greenspan
An energy concerving modification of numerical methods for the integration of equations of motion
International Journal of Mathematics and Mathematical Sciences
conventional numerical methods
ordinary differential equations
multiplicative parameters
truncation error.
title An energy concerving modification of numerical methods for the integration of equations of motion
title_full An energy concerving modification of numerical methods for the integration of equations of motion
title_fullStr An energy concerving modification of numerical methods for the integration of equations of motion
title_full_unstemmed An energy concerving modification of numerical methods for the integration of equations of motion
title_short An energy concerving modification of numerical methods for the integration of equations of motion
title_sort energy concerving modification of numerical methods for the integration of equations of motion
topic conventional numerical methods
ordinary differential equations
multiplicative parameters
truncation error.
url http://dx.doi.org/10.1155/S0161171287000218
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