R.S. Pappa, A. Schenk, N. Niedbal, E. Klusowski

This paper discusses work performed under a collaborative research agreement between NASA and DLR in the area of Dynamics and Control of Large Space Systems. The objective is to develop improved techniques for system identification of future large spacecraft. Recent laboratory results using a refined Phase Resonance Method (PRM) and the Eigensystem Realization Algorithm (ERA) on the same test structure arc reported. These methods are dissimilar modal identification techniques developed at DLR and NASA, respectively. The theory, application approach, and results obtained for each technique are summarized and compared. Although both methods worked well in this application, significant differences occurred in some identified mode shapes. Comparison of independently derived modal parameters provides the means for disclosing such discrepancies in night projects.

International Forum on Aeroelasticity and Structural Dynamics 1991, Aachen

Conference Paper

englisch

21,0 x 29,7 cm, 9 Seiten

DGLR-Bericht, 1991, 1991-06, International Forum on Aeroelasticity and Structural Dynamics 1991 Proceedings; S.195-203; 1991; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

aeroelasticity

Bestellbar

1991