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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), pp. 887-894. DOI: 10.1243/09544100JAERO264 ISSN 0954-4100

Full text not available from this repository.

Abstract

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.

Item URL in elib:https://elib.dlr.de/55887/
Document Type:Article
Title:A multi-body approach for modelling manoeuvring aeroelastic aircraft during preliminary design
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krüger, WolfUNSPECIFIEDUNSPECIFIED
Date:September 2008
Journal or Publication Title:Journal of Aerospace Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:Vol 222
DOI :10.1243/09544100JAERO264
Page Range:pp. 887-894
ISSN:0954-4100
Status:Published
Keywords:aircraft preliminary design, aeroelasticity, multi-body simulation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:31 Oct 2008
Last Modified:27 Apr 2009 15:24

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