Ritter, Markus (2013) Nonlinear Numerical Flight Dynamics of Flexible Aircraft in the Time Domain by Coupling of CFD, Flight Mechanics, and Structural Mechanics. In: Notes on Numerical Fluid Mechanics and Multidisciplinary Design new Results in Numerical and Experimental Fluid Mechanics, VIII (121). Springer. pp. 339-347. ISBN 9783642356797. ISSN 1612-2909.
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Abstract
Dynamic analysis of flexible aircraft typically involves the separation of rigid body and structural dynamics. This approach is justified, if an adequate distance between the frequencies of the elastic and the flight mechanic modes is present. For aircraft structures characterized by relatively low elastic frequencies the combined calculation of the coupled rigid body and structural dynamics becomes evident and the setup of an integrated aeroelastic model of the aircraft is necessary. This article describes the derivation of the integrated aeroelastic model, composed of governing equations for the translational and the rotational motion. A modal approach is used for the calculation of the elastic deformations of the aircraft, therefore using unconstrained free-free vibration modes from a finite-element analysis.
Item URL in elib: | https://elib.dlr.de/86718/ | ||||||||||||||||||
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Document Type: | Contribution to a Collection | ||||||||||||||||||
Title: | Nonlinear Numerical Flight Dynamics of Flexible Aircraft in the Time Domain by Coupling of CFD, Flight Mechanics, and Structural Mechanics | ||||||||||||||||||
Authors: |
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Date: | 2013 | ||||||||||||||||||
Journal or Publication Title: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | No | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||
Volume: | VIII | ||||||||||||||||||
Page Range: | pp. 339-347 | ||||||||||||||||||
Editors: |
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Publisher: | Springer | ||||||||||||||||||
Series Name: | new Results in Numerical and Experimental Fluid Mechanics | ||||||||||||||||||
ISSN: | 1612-2909 | ||||||||||||||||||
ISBN: | 9783642356797 | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Aeroelastic, Flight Mechanic, CFD, Structural Dynamics, Fluid-Structure-Interaction, Weak Coupling, Load Analysis | ||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | ||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||
DLR - Research theme (Project): | L - Simulation & Validation (old) | ||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||
Institutes and Institutions: | Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design | ||||||||||||||||||
Deposited By: | Ritter, Markus Raimund | ||||||||||||||||||
Deposited On: | 20 Dec 2013 11:46 | ||||||||||||||||||
Last Modified: | 09 Jan 2014 15:49 |
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