van Rooij, A.C.L.M. (2017) Aeroelastic Limit-Cycle Oscillations resulting from Aerodynamic Non-Linearities. DLR-Forschungsbericht. DLR-FB-2017-26. Dissertation. 199 S.
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Kurzfassung
Aerodynamic non-linearities, such as shock waves, boundary layer separation or boundary layer transition, may cause an amplitude limitation of the oscillations induced by the fluid flow around a structure. These aeroelastic limit-cycle oscillations (LCOs) resulting from aerodynamic non-linearities have been studied numerically in this PhD thesis. A frequency domain-based method, called the amplitude-dependent p-k (ADePK) method, has been developed to study the bifurcation behaviour of the LCO solutions. From several extensive (structural) parameter studies, it was found that aerodynamic non-linearities, especially shock wave motions, can lead to limit-cycle oscillations that occur already below the linearly predicted flutter boundary.
elib-URL des Eintrags: | https://elib.dlr.de/112752/ | ||||||||
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Dokumentart: | Berichtsreihe (DLR-Forschungsbericht, Dissertation) | ||||||||
Titel: | Aeroelastic Limit-Cycle Oscillations resulting from Aerodynamic Non-Linearities | ||||||||
Autoren: |
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Datum: | 12 April 2017 | ||||||||
Referierte Publikation: | Ja | ||||||||
Open Access: | Ja | ||||||||
Seitenanzahl: | 199 | ||||||||
ISSN: | 1434-8454 | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | aeroelasticity, limit-cycle oscillations, unsteady aerodynamics, bifurcation behaviour, structural parameter variations | ||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||
HGF - Programm: | Luftfahrt | ||||||||
HGF - Programmthema: | Flugzeuge | ||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||
DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Simulation und Validierung (alt) | ||||||||
Standort: | Göttingen | ||||||||
Institute & Einrichtungen: | Institut für Aeroelastik > Aeroelastische Simulation | ||||||||
Hinterlegt von: | van Rooij, Anouk | ||||||||
Hinterlegt am: | 26 Jun 2017 16:07 | ||||||||
Letzte Änderung: | 31 Jul 2019 20:10 |
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