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Optimal Exciter Placement and Force Vector Tuning Required for Experimental Modal Analysis.

Niedbal, N. and Klusowski, E. (1990) Optimal Exciter Placement and Force Vector Tuning Required for Experimental Modal Analysis. In: AIAA 90-1205-CP (1990)., pp. 130-141. AIAA Dynamic Specialist Conference, 5-6 April 1990, Long Beach, CA, U.S.A..

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Abstract

Experiences gained with present modal survey test techniques range from excellent results to unrealistic normal mode parameters. Present experimental modal analysis procedures suffer under the absence of a criterion for optimal exciter placement. In order to increase the reliability and robustness of modern identification methods, a technique for optimal exciter point selection was developed based on combinatorical optimization. Applying three force tuning procedures published in the past and a new method, reliable normal mode parameters of an analytical eleven-degree-of-freedom system and of a real structure could be determined, thus verifying the performance of the proposed technique.

Document Type:Conference or Workshop Item (Speech)
Additional Information: institution=AIAA, LIDO-Berichtsjahr=1990, pages=12,
Title:Optimal Exciter Placement and Force Vector Tuning Required for Experimental Modal Analysis.
Authors:
AuthorsInstitution or Email of Authors
Niedbal, N.UNSPECIFIED
Klusowski, E.UNSPECIFIED
Date:1990
Journal or Publication Title:AIAA 90-1205-CP (1990).
Page Range:pp. 130-141
Status:Published
Keywords:Observability, Controllability, Phase Resonance, Phase Separation, Sy stem Identification, Structural Dynamics
Event Title:AIAA Dynamic Specialist Conference, 5-6 April 1990, Long Beach, CA, U.S.A.
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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