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Structural Dynamics Identification by Means of Multi-Axial Base Excitation - Theory and Application -

Füllekrug, U. and Sinapius, M. (1999) Structural Dynamics Identification by Means of Multi-Axial Base Excitation - Theory and Application -. In: Proceedings European Conference on Spacecraft Structures, Materials and Mechanical Testing, ESA SP-428, February 1999, pp. 503-509. European Conference on Spacecraft Structures, Materials and Mechanical Testing, Braunschweig, 4.-6.11.1998.

Full text not available from this repository.

Abstract

Dynamic qualification of spacecraft structures usually are performed on special vibration test facilities applying single or multi-axial base excitation. The same test set-up allows for the identification of the structural dynamics properties of the tested structure if suitable identification methods are employed. Here, the theory and the basic principles of structural dynamics identification by multi-axial base excitation are described. Starting with the fundamental dynamic equations the specifics of base excitation are explained as well as the relationships of relative kinematics. Questions of controllability are discussed. The determination of the relevant dynamic excitation and the structural responses is described. The requirement of a multi-axial test facility for an appropriate identification is explained under consideration of its special advantages and limitations. A survey of identification approaches developed at DLR Göttingen is given. The practical application of a frequency domain identification of two different structures is described. Exemplary results are discussed and an outlook is given.

Item URL in elib:https://elib.dlr.de/14123/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Structural Dynamics Identification by Means of Multi-Axial Base Excitation - Theory and Application -
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Füllekrug, U.UNSPECIFIEDUNSPECIFIED
Sinapius, M.UNSPECIFIEDUNSPECIFIED
Date:1999
Journal or Publication Title:Proceedings European Conference on Spacecraft Structures, Materials and Mechanical Testing
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:ESA SP-428, February 1999
Page Range:pp. 503-509
Status:Published
Keywords:structural dynamics, modal identification, multi-axial base excitation, theory, application examples
Event Title:European Conference on Spacecraft Structures, Materials and Mechanical Testing, Braunschweig, 4.-6.11.1998
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: DLR-Beauftragter, elib
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:26

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