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An Integrated Model for Lateral Gust Loads Analysis and Dutch Roll Flight Dynamics using a 3D Panel Method

Kier, Thiemo (2017) An Integrated Model for Lateral Gust Loads Analysis and Dutch Roll Flight Dynamics using a 3D Panel Method. International Forum on Aeroelasticity and Structural Dynamics, 25.-28. Jun. 2017, Como, Italien.

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Kurzfassung

An integrated modelling approach for gust and manoeuvre loads analysis is presented. Typically, the unsteady aerodynamics for gust loads are computed by the Doublet Lattice Method. However, this method does not account for effects, which are important from a flight dynamics and manoeuvre loads perspective. E.g., the roll-yaw coupling, also responsible for the flight mechanical eigenmodes like the dutch roll mode, are unaccounted for by the DLM. Since, the dutch roll mode might also be excited by lateral gusts, this might have an influence on the loads response. In this paper, the unsteady aerodynamics are computed by a 3D panel method, capable of capturing the flight dynamics accurately and provide complex Aerodynamics Influence Coefficients for gust loads analysis as a function of reduced frequency similar to the DLM. The aerodynamics of the panel method are validate by comparison with CFD results. Differences in the flight mechanics between the DLM and the panel methods are assessed for a parametric variation of the wing dihedral of an aircraft model. Finally, results from a frequency domain gust loads analysis of a lateral gust for the DLM and the 3D panel method are compared.

elib-URL des Eintrags:https://elib.dlr.de/118398/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:An Integrated Model for Lateral Gust Loads Analysis and Dutch Roll Flight Dynamics using a 3D Panel Method
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Kier, ThiemoThiemo.Kier (at) dlr.dehttps://orcid.org/0000-0002-6210-6295NICHT SPEZIFIZIERT
Datum:Juni 2017
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Loads Analysis, integrated flexible flight dynamics model, 3D Panel Methods, Aerodynamic Influence Coefficients, Lateral Gust, Dutch Roll
Veranstaltungstitel:International Forum on Aeroelasticity and Structural Dynamics
Veranstaltungsort:Como, Italien
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:25.-28. Jun. 2017
Veranstalter :Politecnico di Milano
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 - Systeme und Kabine (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Systemdynamik und Regelungstechnik > Flugzeug-Systemdynamik
Hinterlegt von: Kier, Thiemo
Hinterlegt am:22 Jan 2018 14:36
Letzte Änderung:29 Mär 2023 00:36

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