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Improvement of experimental Modal Data Using the "Emphasized Data Analysis".

Schenk, A. (1993) Improvement of experimental Modal Data Using the "Emphasized Data Analysis". International Forum on Aeroelasticity and Structural Dynamics 1993, Palais des CongrŠs, Strasbourg, France, 24-26 May 1993..

Full text not available from this repository.

Abstract

In this paper a supplementary technique to improve modal results is presented, called the Emphasized Data Analysis. A priori knowledge of the test specimen is required, which usually is provided by a standard multiple input-multiple output identification, taking into account all available inputs and outputs. While low global accuracy indicators highlight candidate modes for improvement, local accuracy indicators are used for selection of optimal inputs and outputs. The successful application of the Emphasized Data Analysis to the CLUMOD structure is illustrated in this report. Accuracy and stability of modal parameters of six target modes could be improved considerably. In addition, the computation time of the Emphasized Data Analysis is much shorter compared to the standard MIMO approach, due to the fact that the data input matrices are drastically reduced.

Item URL in elib:https://elib.dlr.de/39587/
Document Type:Conference or Workshop Item (Paper)
Additional Information: institution=Association A‚ronautique et Astronautique de France., LIDO-Berichtsjahr=1993, pages=20,
Title:Improvement of experimental Modal Data Using the "Emphasized Data Analysis".
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schenk, A.UNSPECIFIEDUNSPECIFIED
Date:1993
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:Vol. 1
Page Range:pp. 517-536
Status:Published
Keywords:Structural dynamics, Modal identification, Optimal excitation, Optimal sensing, Accuracy indicators, improvement of accuracy and consistency.
Event Title:International Forum on Aeroelasticity and Structural Dynamics 1993, Palais des CongrŠs, Strasbourg, France, 24-26 May 1993.
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:UNSPECIFIED
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:02 Apr 2006
Last Modified:27 Apr 2009 10:48

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