New Structural Dynamic Condensation Method for Finite Element Models

A new iterative method is proposed for the reduction of finite element models arising in test-analysis correlation, model updating, finite element modeling, vibration control, structural dynamic optimization, and so on. Based on the modified eigenvalue equation and the eigenvalue shifting technique,...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	AIAA journal 1998-07, Vol.36 (7), p.1320-1324
Hauptverfasser:	Qu, Zu-Qing, Fu, Zhi-Fang
Format:	Artikel
Sprache:	eng
Schlagworte:	Aircraft Applied sciences Buildings. Public works Computational techniques Condensation Exact sciences and technology Finite element analysis Finite-element and galerkin methods Fundamental areas of phenomenology (including applications) Mathematical methods in physics Physics Solid mechanics Strength of materials (elasticity, plasticity, buckling, etc.) Structural analysis. Stresses Structural and continuum mechanics Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...) Vibrations and mechanical waves
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A new iterative method is proposed for the reduction of finite element models arising in test-analysis correlation, model updating, finite element modeling, vibration control, structural dynamic optimization, and so on. Based on the modified eigenvalue equation and the eigenvalue shifting technique, two constraint equations for the dynamic condensation matrix, which relates the deformations associated with the master and stave degrees of freedom, are derived. Two iterative schemes an presented for solving the constraint equations.
ISSN:	0001-1452 1533-385X
DOI:	10.2514/2.517