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A Multibody Approach for Modelling of the Manoeuvring Aeroelastic Aircraft During Pre-Design

Krüger, Wolf and Spieck, Martin (2006) A Multibody Approach for Modelling of the Manoeuvring Aeroelastic Aircraft During Pre-Design. In: ICAS 2006 - Proceedings. Optimage Ltd., Edinburgh, UK. ICAS 2006 - 25th International Congress of the Aeronautical Sciences, 2006-09-03 - 2006-09-08, Hamburg, Germany (Europe). ISBN 0-9533991-7-6.

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During pre-design, aircraft are described with a limited level of detail, the focus being on fast 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 pre-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 freeflight 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/46892/
Document Type:Conference or Workshop Item (Paper)
Title:A Multibody Approach for Modelling of the Manoeuvring Aeroelastic Aircraft During Pre-Design
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Krüger, WolfInstitute of AeroelasticityUNSPECIFIEDUNSPECIFIED
Spieck, MartinInstitute of AeroelasticityUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:ICAS 2006 - Proceedings
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:Optimage Ltd., Edinburgh, UK
Keywords:aeroelasticity, multibody dynamics, simulation, pre-design
Event Title:ICAS 2006 - 25th International Congress of the Aeronautical Sciences
Event Location:Hamburg, Germany (Europe)
Event Type:international Conference
Event Dates:2006-09-03 - 2006-09-08
Organizer:German Society for Aeronautics and Astronautics - Lilienthal-Oberath e.V.
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:20 Apr 2007
Last Modified:27 Apr 2009 13:26

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