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High-Fidelity Computational Optimization for 3-D Flexible Wings: Part I—Simultaneous Aero-Structural Design Optimization (SASDO)

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Abstract

The formulation and implementation of a multidisciplinary optimization method called Simultaneous Aerodynamic and Structural Design Optimization (SASDO) is presented and applied to a simple, isolated, 3-D wing in inviscid flow. The method aims to reduce the computational expense incurred in performing shape and sizing optimization using existing state-of-the-art Computational Fluid Dynamics (CFD) flow analysis, FEM structural analysis and sensitivity analysis tools. Results show that the method finds the same local optimum as a conventional optimization method with as much as 50% reduction in the computational cost and without significant modifications to the analysis tools.

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Authors and Affiliations

  1. NASA Langley Research Center, Hampton, VA, 23681, USA

    Clyde R. Gumbert & Perry A. Newman

  2. Old Dominion University, Norfolk, VA, 23529-0247, USA

    Gene J.-W. Hou

Authors
  1. Clyde R. Gumbert
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  2. Gene J.-W. Hou
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  3. Perry A. Newman
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Gumbert, C.R., Hou, G.JW. & Newman, P.A. High-Fidelity Computational Optimization for 3-D Flexible Wings: Part I—Simultaneous Aero-Structural Design Optimization (SASDO). Optimization and Engineering 6, 117–138 (2005). https://doi.org/10.1023/B:OPTE.0000048539.37526.e3

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  • DOI: https://doi.org/10.1023/B:OPTE.0000048539.37526.e3

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