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Modal Identification of a Deployable Space Truss.

Schenk, A. and Pappa, R. S. (1990) Modal Identification of a Deployable Space Truss. In: Proceedings of the 15th International Seminar on Modal Analysis and S tructural Dynamics. 15th International Seminar on Modal Analysis and Structural Dynamics 17-21 September 1990, Leuven, Belgium.

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Abstract

This paper summarizes work performed under a collaborative research effort between NASA and the German Aerospace Research Establishment (DLR, Deutsche Forschungsanstalt fuer Luft- und Raumfahrt). The objective is to develop and demonstrate advanced technology for system identification of future large space structures. Recent experiences using the Eigensystem Realization Algorithm (ERA) for modal identification of Mini-Mast are reported. Mini-Mast is a 20-meter long deployable space truss used for structural dynamics and active vibration-control research at the NASA Langley Research Center. Due to nonlinearities and numerous local modes, modal idenfification of Mini-Mast proved to be surprisingly difficult. Methods available with ERA for obtaining detailed, high-confidence results are illustrated.

Document Type:Conference or Workshop Item (Paper)
Additional Information: institution=Katholieke Universiteit Leuven, Department of Mechanical Engineering, LIDO-Berichtsjahr=1990, pages=20,
Title:Modal Identification of a Deployable Space Truss.
Authors:
AuthorsInstitution or Email of Authors
Schenk, A.UNSPECIFIED
Pappa, R. S.UNSPECIFIED
Date:1990
Journal or Publication Title:Proceedings of the 15th International Seminar on Modal Analysis and S tructural Dynamics
Status:Published
Keywords:Modal Identification, Mini-Mass Space Truss, EMAC, MPC, CMI
Event Title:15th International Seminar on Modal Analysis and Structural Dynamics 17-21 September 1990, Leuven, Belgium
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 10:42

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