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Improvement of a Preliminary Design and Optimization Program for the Evaluation of Future Aircraft Projects

Strohmeyer, D. and Seubert, R. (1998) Improvement of a Preliminary Design and Optimization Program for the Evaluation of Future Aircraft Projects. 7th AIAA/NASA/USAF/ISSMO Symposium on Multidisciplinary Analysis and Optimization, St. Louis (usa), 02.-04.09.1998.

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Abstract

The improvement of an integrated aircraft predesign code and its application to future aircraft concepts is reported. For the simulation of a Megaliner canard configuration as well as a supersonic commercial transport aircraft (SCT) the predesign code PrADO was extended by the higher-order panel method HISSS. The improvement of the aerodynamic model allows the simulation of interference effects between wing, tailplane and canard as well as the extension of the simulated flight regime to supersonic speeds. The application of the calibrated predesign code to a Megaliner configuration leads to differences between published and predicted design weights below 6%. Preliminary results of the simulation of a canard configuration show that a canard may not automatically increase the aerodynamic efficiency L/D. A reduction of the induced drag is overcompensated by an increase of the minimum drag due to additional friction drag of the canard. The SCT design studies also provide converged solutions, however, a redesign of the Concorde shows significant discrepancies with respect to the operational empty weight, fields for future investigations.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Improvement of a Preliminary Design and Optimization Program for the Evaluation of Future Aircraft Projects
Authors:
AuthorsInstitution or Email of Authors
Strohmeyer, D.UNSPECIFIED
Seubert, R.UNSPECIFIED
Date:1998
Status:Published
Keywords:MDO, Multidisciplinary Design And Optimization, Integrated Aircraft Preliminary Design, Three Surface Aircraft, TSA, Megaliner, Canard, Supersonic Commercial Transport Aircraft, SCT, Design Code PrADO, Higher-Order Panel Method, HISSS, Code Calibration
Event Title:7th AIAA/NASA/USAF/ISSMO Symposium on Multidisciplinary Analysis and Optimization, St. Louis (usa), 02.-04.09.1998
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Concepts & Integration
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: Claudia Grant
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:00

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