DGLR-Publikationsdatenbank - Detailansicht
Titel:
Aeroelastic Efficiencies with Nonlinear Aerodynamics: Analysis and Sensitivities
Autor(en):
M. Stettner, H.R.E.M. Hörnlein, H. Guldner, L. Fornasier
Zusammenfassung:
The application of non-linear aerodynamic methods in aeroelasticity invalidates some simplifying assumptions made in the calculation of aeroelastic efficiency factors. In this paper, expressions for aeroelastic efficiencies which do not rely on a linear relation between aerodynamic load and mesh deflection are formally derived. A series expansion is used to efficiently approximate the exact, iterative solution. The expression requires a derivative of the load-deflection function. For a 3D panel method, an analytical solution for this derivative is given. With these components, it is shown how the sensitivity of aeroelastic efficiencies with respect to structural design variables can be cast into an efficiently calculated analytical formula. These sensitivities permit inclusion of non-linear aerodynamic methods in structural optimization with aeroelastic constraints.
Veranstaltung:
CEAS Conference on Multidisciplinary
Aircraft Design and Optimization; Köln; 2001
Medientyp:
Book Chapter
Sprache:
englisch
Format:
14,8 x 21,0 cm, 9 Seiten
Veröffentlicht:
DGLR-Bericht, 2001, 2001-05, CEAS Conference on Multidisciplinary
Aircraft Design and Optimization; S.227-235; 2001; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn
Preis:
NA
ISBN:
ISSN:
Kommentar:
Klassifikation:
Stichworte zum Inhalt:
aerodynamics, aeroelasticity, aeronautics, multidisciplinary design optimisation
Verfügbarkeit:
Bestellbar
Veröffentlicht:
2001
Dieses Dokument ist Teil einer übergeordneten Publikation:
CEAS Conference on Multidisciplinary
Aircraft Design and Optimization