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A multi-body approach for modelling manoeuvring aeroelastic aircraft during preliminary design

Krüger, Wolf (2008) A multi-body approach for modelling manoeuvring aeroelastic aircraft during preliminary design. Journal of Aerospace Engineering, Vol 222 (No G6), Seiten 887-894. doi: 10.1243/09544100JAERO264. ISSN 0954-4100.

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Kurzfassung

During preliminary design, aircraft are described with a limited level of detail, the focus being on rapid investigation of a large number of cases and quickly changing configurations and parameters. Therefore in the majority of cases, aircraft are regarded neglecting dynamic aeroelastic deformations. In the paper, an approach to model the aeroelastic aircraft for preliminary design based on multibody dynamics is presented. The elastic structure is discretized by the means of rigid bodies, connected by rotational springs to account for wing bending and rotational stiffness. For the aerodynamics, strip theory corrected for the influence of a finite wing is used in the current version. Flight mechanics are included via library elements describing the degree of freedom between the (inertial) reference system and the moving airframe. The complete model allows a free-flight simulation of the aircraft including trim and manoeuvres. The evaluation puts special emphasis on flight load calculation. Scenarios include free flight, a pull-up, and investigations of changes in ground loads due to changes in structural elasticity.

elib-URL des Eintrags:https://elib.dlr.de/55887/
Dokumentart:Zeitschriftenbeitrag
Titel:A multi-body approach for modelling manoeuvring aeroelastic aircraft during preliminary design
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Krüger, WolfNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:September 2008
Erschienen in:Journal of Aerospace Engineering
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Ja
Band:Vol 222
DOI:10.1243/09544100JAERO264
Seitenbereich:Seiten 887-894
ISSN:0954-4100
Status:veröffentlicht
Stichwörter:aircraft preliminary design, aeroelasticity, multi-body simulation
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
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:31 Okt 2008
Letzte Änderung:27 Apr 2009 15:24

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