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Modal Identification of Large Aircraft

Lubrina, P. and Degener, M. (1999) Modal Identification of Large Aircraft. In: ONERA-DLR Aerospace Symposium, First ONERA-DLR Aerospace Symposium, Paris, 21-24 June 1999, S2-1,S.1-S.11. ONERA-DLR Aerospace Symposium (ODAS), Paris, France, 21-24 June, 1999.

Full text not available from this repository.

Abstract

The modal identification of a structure consists in providíng the parameters representing this specific system and allowing the prediction of its dynamic behaviour for several environment conditions. The ground vibration test producing the modal identification is one of the main tools used by aircraft manufacturers to verify the aircraft flutter clearance in their flight domain, prior to the first certification flight. Today, the experimental parameters coming from the ground vibration tests are not only used to verify the aeroelastic stability of the aircraft, but also to update the Finite Element Model. The specificities of the modal identification of large aircraft come mainly form the very low resonance frequencies, the high modal density, and the necessary equipment to perform the ground vibration test. To succeed in reducing the test duration, both the Phase Resonance method (modal appropriation), generally used to perform such a test, and the Phase Separation method will be applied complementarily and supported by the Finite Element Model.

Item URL in elib:https://elib.dlr.de/14181/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2000,
Title:Modal Identification of Large Aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lubrina, P.ONERAUNSPECIFIED
Degener, M.UNSPECIFIEDUNSPECIFIED
Date:1999
Journal or Publication Title:ONERA-DLR Aerospace Symposium
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:First ONERA-DLR Aerospace Symposium, Paris, 21-24 June 1999
Page Range:S2-1,S.1-S.11
Editors:
EditorsEmail
DLR, ONERAUNSPECIFIED
Series Name:Proceedings ODAS 99
Status:Published
Keywords:Flutter, Vibrations, Modal Identification
Event Title:ONERA-DLR Aerospace Symposium (ODAS), Paris, France, 21-24 June, 1999
Organizer:ONERA/DLR
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:31

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