From linear to nonlinear PGD-based parametric structural dynamics - 14/05/19
pages | 10 |
Iconographies | 6 |
Vidéos | 0 |
Autres | 0 |
Abstract |
The present paper analyzes different integration schemes of solid dynamics in the frequency domain involving the so-called Proper Generalized Decomposition – PGD. The last framework assumes for the solution a parametric dependency with respect to frequency. This procedure allowed introducing other parametric dependences related to loading, geometry, and material properties. However, in these cases, affine decompositions are required for an efficient computation of separated representations. A possibility for circumventing such difficulty consists in combining modal and harmonic analysis for defining an hybrid integration scheme. Moreover, such a procedure, as proved in the present work, can be easily generalized to address nonlinear parametric dynamics, as well as to solve problems with non-symmetric stiffness matrices, always operating in the domain of low frequencies.
Le texte complet de cet article est disponible en PDF.Keywords : Linear and nonlinear parametric dynamics, Proper Generalized Decomposition, Harmonic analysis, Modal analysis, Low frequency domain
Plan
Vol 347 - N° 5
P. 445-454 - mai 2019 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’achat d’article à l’unité est indisponible à l’heure actuelle.
Déjà abonné à cette revue ?