Quero, David und Vuillemin, Pierre und Poussot-Vassal, Charles (2022) Improved mode tracking for the p-L flutter solution method based on aeroelastic derivatives. In: 19th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022. International Forum on Aeroelasticity and Structural Dynamics (IFASD) 2022, 2022-06-13 - 2022-06-17, Madrid, Spanien. ISBN 978-840942353-8.
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Kurzfassung
In this work an improved mode tracking algorithm is developed for the p-L flutter solution method. Compared to the original criterion used for sorting the aeroelastic modes, the approach presented herein uses aeroelastic derivatives in order to predict the flutter solution at the next parameter value. The present method allows for a more robust and efficient sorting of the aeroelastic modes for configurations where the number of real and complex poles resulting from the representation of the aerodynamic term is high, ensuring a proper tracking of the modes corresponding to the structural degrees of freedom. The flutter p-L method together with the proposed mode tracking algorithm is applied to a 2 degrees-of-freedom airfoil configuration with high-fidelity unsteady aerodynamics and to the common research aeroelastic model representing a transport aircraft configuration. For the latter, a modified doublet-lattice method valid throughout the complex plane is used for the reference solution, allowing for the first time to validate the p-L flutter solution method for general configurations. The results show that the p-L method is able to truly represent the aeroelastic damping when compared to the classical p-k and g methods.
elib-URL des Eintrags: | https://elib.dlr.de/187885/ | ||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
Titel: | Improved mode tracking for the p-L flutter solution method based on aeroelastic derivatives | ||||||||||||||||
Autoren: |
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Datum: | 2022 | ||||||||||||||||
Erschienen in: | 19th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022 | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
ISBN: | 978-840942353-8 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Flutter, Loewner framework, aeroelastic derivatives, mode tracking | ||||||||||||||||
Veranstaltungstitel: | International Forum on Aeroelasticity and Structural Dynamics (IFASD) 2022 | ||||||||||||||||
Veranstaltungsort: | Madrid, Spanien | ||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
Veranstaltungsbeginn: | 13 Juni 2022 | ||||||||||||||||
Veranstaltungsende: | 17 Juni 2022 | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||
HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Flugzeug und Validierung | ||||||||||||||||
Standort: | Göttingen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Aeroelastik > Aeroelastische Simulation | ||||||||||||||||
Hinterlegt von: | Quero-Martin, David | ||||||||||||||||
Hinterlegt am: | 22 Aug 2022 14:27 | ||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:49 |
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