Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic Elements

The main method used to determine the equations of motion of a multibody system (MBS) with elastic elements is the method of Lagrange’s multipliers. The assembly of equations for the whole system represents an important step in the elastodynamic analysis of such a system. This paper presen...

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Main Authors: Sorin Vlase, Marin Marin, Maria Luminița Scutaru
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/8/3/399
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author Sorin Vlase
Marin Marin
Maria Luminița Scutaru
author_facet Sorin Vlase
Marin Marin
Maria Luminița Scutaru
author_sort Sorin Vlase
collection DOAJ
description The main method used to determine the equations of motion of a multibody system (MBS) with elastic elements is the method of Lagrange’s multipliers. The assembly of equations for the whole system represents an important step in the elastodynamic analysis of such a system. This paper presents a new method of approaching this stage, by applying Maggi’s equations. In this way, the links that exist between the finite elements and the connections that exist between different bodies of the MBS system are conveniently taken into account, each body having a distinct velocity and acceleration field. Although Maggi’s equations have been used, sporadically, in some applications so far, we are not aware that they have been used in the study of elastic systems using the finite element method. Finally, an algorithm is presented that uses the Maggi formalism to obtain the equations of motion for an MBS system.
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spelling doaj.art-cc53e664d6a84252b246ed829ff7e0e02022-12-21T23:18:09ZengMDPI AGMathematics2227-73902020-03-018339910.3390/math8030399math8030399Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic ElementsSorin Vlase0Marin Marin1Maria Luminița Scutaru2Department of Mechanical Engineering, Transilvania University of Brașov, 500036 Brașov, RomaniaDepartment of Mathematics and Computer Science, Transilvania University of Brasov, 500036 Brașov, RomaniaDepartment of Mechanical Engineering, Transilvania University of Brașov, 500036 Brașov, RomaniaThe main method used to determine the equations of motion of a multibody system (MBS) with elastic elements is the method of Lagrange’s multipliers. The assembly of equations for the whole system represents an important step in the elastodynamic analysis of such a system. This paper presents a new method of approaching this stage, by applying Maggi’s equations. In this way, the links that exist between the finite elements and the connections that exist between different bodies of the MBS system are conveniently taken into account, each body having a distinct velocity and acceleration field. Although Maggi’s equations have been used, sporadically, in some applications so far, we are not aware that they have been used in the study of elastic systems using the finite element method. Finally, an algorithm is presented that uses the Maggi formalism to obtain the equations of motion for an MBS system.https://www.mdpi.com/2227-7390/8/3/399finite elementlagrangemaggifeamultibody systemmbsnonlinear systemelastic elementsanalytical dynamicsrobotics
spellingShingle Sorin Vlase
Marin Marin
Maria Luminița Scutaru
Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic Elements
Mathematics
finite element
lagrange
maggi
fea
multibody system
mbs
nonlinear system
elastic elements
analytical dynamics
robotics
title Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic Elements
title_full Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic Elements
title_fullStr Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic Elements
title_full_unstemmed Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic Elements
title_short Maggi’s Equations Used in the Finite Element Analysis of the Multibody Systems with Elastic Elements
title_sort maggi s equations used in the finite element analysis of the multibody systems with elastic elements
topic finite element
lagrange
maggi
fea
multibody system
mbs
nonlinear system
elastic elements
analytical dynamics
robotics
url https://www.mdpi.com/2227-7390/8/3/399
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