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Optimum structural design with static aeroelastic constraints (1989)

Grandhi, Ramana V. ; Bowman, Keith B ; Eastep, F. E.

In: CASI

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Publication Date: 2013-08-31

Description: The static aeroelastic performance characteristics, divergence velocity, control effectiveness and lift effectiveness are considered in obtaining an optimum weight structure. A typical swept wing structure is used with upper and lower skins, spar and rib thicknesses, and spar cap and vertical post cross-sectional areas as the design parameters. Incompressible aerodynamic strip theory is used to derive the constraint formulations, and aerodynamic load matrices. A Sequential Unconstrained Minimization Technique (SUMT) algorithm is used to optimize the wing structure to meet the desired performance constraints.

Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE

Type: NASA. Langley Research Center, Recent Advances in Multidisciplinary Analysis and Optimization, Part 1; p 497-508

Format: application/pdf

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