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Ground Vibration Testing of Large Aircraft - State-of-the-Art and Future Perspectives

Göge, Dennis und Lubrina, Pascal und Böswald, Marc und Füllekrug, Ulrich (2007) Ground Vibration Testing of Large Aircraft - State-of-the-Art and Future Perspectives. LMS Conference Europe, 2007-04-17 - 2007-04-18, Stuttgart, Germany (Europe).

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Kurzfassung

A ground vibration test (GVT) on the prototype of a new aircraft is often regarded as necessary in order to make reliable flutter predictions for flight tests and to update the mathematical model of the aircraft. Due to very high development costs for such aircraft, the goal is to strive for a significantly shorter testing time by simultaneously increasing the amount and quality of the test data. In the past, the duration of such GVTs was reduced significantly due to the combined application of the phase resonance method (sine-dwell) and phase separation techniques instead of using only the time consuming phase resonance method for modal identification (extraction of mode shapes, frequencies and damping parameters). This switch in test philosophy, including the application of a sufficient amount of equipment, caused a reduction in testing time of large aircraft by 1/3. Nowadays, the application of the common GVT strategy is more or less a standard process, depending on the size of the investigated structure. Nevertheless, the scope of requirements of the aircraft manufacturers regarding the test program has increased in the last years in order to cover new issues like passenger comfort, fan-blade-off (wind-milling) or aero-servo-elasticity within the same time-window as for the modal identification topic during past GVTs. Mid-term improvements are continuously achieved due to test strategy improvements or enhanced soft- and hardware developments. However, a great leap with respect to test time reduction, quality enhancement and cost efficiency can only be made if the complete aeroelastic certification process is taken into account. Thus, it must be scrutinized if the classical GVT will play the same role in the future within the aeroelastic certification process as nowadays or if equivalent data required for aircraft certification can also be gained from other tests which are performed anyway during aircraft development. In this paper the advanced GVT strategy of the transnational ONERA and DLR team is presented based on the ground vibration tests on Airbus A380MSN#2. After that, mid-term improvements are shown which are related directly to the test strategy issue. A vision with respect to ground vibration testing in the future, which will have a significant effect on the complete aeroelastic certification process, is discussed and will complete this publication.

elib-URL des Eintrags:https://elib.dlr.de/48891/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Ground Vibration Testing of Large Aircraft - State-of-the-Art and Future Perspectives
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Göge, DennisNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Lubrina, PascalOffice National d'Études et de Recherches Aérospatiales (ONERA)NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Böswald, MarcNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Füllekrug, UlrichNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2007
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:akzeptierter Beitrag
Stichwörter:Ground Vibration Testing, GVT
Veranstaltungstitel:LMS Conference Europe
Veranstaltungsort:Stuttgart, Germany (Europe)
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:17 April 2007
Veranstaltungsende:18 April 2007
Veranstalter :LMS
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler (alt)
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flexibles Flugzeug (alt)
Standort: Göttingen
Institute & Einrichtungen:Institut für Aeroelastik
Hinterlegt von: Erdmann, Daniela
Hinterlegt am:17 Jul 2007
Letzte Änderung:24 Apr 2024 19:11

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