A piecewise, panel based, pressure representation is incorporated to improve the fidelity of an existing wing aeroelastic model, including the sensitivity of the wing static aeroelastic response with respect to various shape parameters. The formulation is quite general and accepts any aerodynamics and structural analysis capability. It assumes that for a given shape and elastic deformation, the aerodynamic analysis will provide the pressure distribution on the wing. Similarly, the structural analysis needs to provide only the elastic deformation of the wing, given its shape and pressure distribution. An interface code written earlier to transfer information between aerodynamic and structures modules using a global pressure representation has been modified to improve the representation of the calculated pressures using piecewise representations. These improvements are designed to overcome some drawbacks of the earier representation as well as providing a more accurate representation of the aerodynamic loads to the structures module. A variety of refinements have been attempted o study their effectiveness. Local (individual discipline) sensitivity derivatives are calculated by either analytic methods or finite difference techniques.
Sensitivity analysis of aeroelastic response of a wing using piecewise pressure representation
Eine feinstufige Untersuchung der aeroelastischen Reaktion auf eine Tragfläche mittels partieller Druckbeaufschlagung
1993
11 Seiten, 10 Bilder, 2 Tabellen, 22 Quellen
Conference paper
English
Luftfahrttechnik , Tragflügel , Tragflügeltheorie , Aeromechanik , experimentelle Untersuchung , Simulationsmodell , Strukturanalyse , Druckbeanspruchung , technische Entwicklung , Leistungsbewertung , Profilumströmung , Profil (Kontur) , Verfahrensparameter , Aerodynamik , elastische Verformung , Druckverteilung , Finite-Differenz-Methode , Entwurfsparameter
Sensitivity Analysis of Aeroelastic Response of a Wing Using Piecewise Pressure Representation
Online Contents | 1996
|Sensitivity analysis of a wing aeroelastic response
NTRS | 1993
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