Modal-survey testing is an increasingly common part of the qualification procedure for aerospace structures, since it offers an experimental verification of normal mode parameters determined by dynamic finite-element analysis. Moreover, it permits identification structural damping, knowledge of which is essential for reliable flight-load calculations for space structures. A state of the art of modern modal-survey testing is given here, covering the phase-resonance method and various phase-separation methods. The use of modal-survey results in the dynamic qualification of aerospace structures is discussed, emphasizing the correlation of analytical and experimental modal data. This aspect has attracted growing interest in recent years, due to the obvious need for convenient tools that allow finite-element models to be updated with measured modal data.
Modal analysis technique used in germany for aerospace structures
In Deutschland angewandte Modalanalyseverfahren fuer Raumfahrzeugkonstruktionen
Proc. of the 4th Int. Modal Analysis Conf., Union College-Schenectady ; 1 , Feb ; 378-385
1986
8 Seiten, 7 Bilder, 3 Tabellen, 17 Quellen
Aufsatz (Konferenz)
Englisch
MODALANALYSE , MATHEMATISCHES VERFAHREN , FINITE-ELEMENTE-METHODE , RAUMFAHRT , RAUMFAHRZEUG , KONSTRUKTIONSDATEN , DYNAMISCHES VERHALTEN , DYNAMISCHE BELASTUNG , SCHWINGUNGSVERHALTEN , SCHWINGUNGSSYSTEM , FREQUENZGANG , RESONANZFREQUENZ , DAEMPFUNGSFAKTOR , MESSWERTVERARBEITUNG , MODELLUNTERSUCHUNG , ANWENDUNGSBEREICH
Theoretical and Experimental Modal Analysis of Nonlinear Aerospace Structures
British Library Conference Proceedings | 2010
|Aerospace Education in Germany
SAE Technical Papers | 2001
|Modal Correlation of an Aerospace Structure
SAE Technical Papers | 2006
|Advanced debonding detection technique for aerospace composite structures
Emerald Group Publishing | 2021
|