This paper describes a wing mass estimation approach based on a bi-level optimization process and an automated CAD-CAE integration framework. The design framework goes through parametric CAD model generation, aerodynamic load calculation, finite element modeling, structural analysis and sizing. In the lower-level task, the wing box is sized to optimize the structural element thicknesses under a maximum stress constraint for a fixed planform configuration. The upper-level optimization determines the optimal planform shape to minimize the wing mass while maintaining a good lift-to-drag ratio. The process chain involves SIEMENS NX for geometric modeling, VORLAX VLM for aerodynamic calculations and MSC. NASTRAN for FE analysis and sizing. The outer optimization is performed by the multi-objective genetic algorithm on a radial basis function surrogate model.


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    Title :

    Structural wing sizing and planform shape optimization using multidisciplinary CAD-CAE integration process


    Contributors:


    Publication date :

    2017-07-01


    Size :

    491112 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





    AERO-STRUCTURAL WING PLANFORM OPTIMIZATION

    Leoviriyakit, K. / Jameson, A. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2004


    Aero-Structural Wing Planform Optimization

    Leoviriyakit, Kasidit / Jameson, Antony | AIAA | 2004