Title

Aerodynamic-Structural Optimization of Positive/Negative Stagger Joined Wing Configurations

Abstract

Dual wing configurations attached at the tip are analyzed aerodynamically and structurally. Both a positive stagger, i.e., the Swept Forward-Swept Rearward (SFSR) configuration, and a negative stagger, i.e., the Wolkovitch Joined Wing (JW) configuration, were analyzed with a common fuselage, engine, payload, etc. The aerodynamic analysis consisted of a multi-element vortex panel program coupled with a momentum integral analysis for the viscous drag and a vortex lattice analysis for the induced drag and spanwise lift distribution. The structural analysis utilized a specially developed sequence of programs which interact iteratively with NASTRAN to economically produce a fully stressed structure. Both configurations are analyzed with the goal of designing an optimum configuration subject to design constraints.

Meeting Name

Aircraft Systems, Design and Technology Meeting

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1986 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.

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