Abstract This article introduces a process chain for commercial aircraft wing multidisciplinary optimization (MDO) based on high fidelity simulation methods. The architecture of this process chain enables two of the most promising future technologies in commercial aircraft design in the context of MDO. These technologies are natural laminar flow (NLF) and aeroelastic tailoring using carbon fiber reinforced plastics (CFRP). With this new approach, the application of MDO to an NLF forward swept composite wing will be possible. The main feature of the process chain is the hierarchical decomposition of the optimization problem into two levels. On the highest level, the wing planform including twist and airfoil thickness distributions as well as the orthotropy direction of the composite structure will be optimized. The lower optimization level includes the wing box sizing for essential load cases considering the static aeroelastic deformations. In addition, the airfoil shapes are transferred from a given NLF wing design and the natural laminar flow is considered by prescribing laminar–turbulent transition locations. Optimization results of the multidisciplinary process chain are presented for a forward swept wing aircraft configuration on conceptual design level. The results show a fuel burn reduction in the order of 9% for the design mission.


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    Title :

    Multidisciplinary optimization of an NLF forward swept wing in combination with aeroelastic tailoring using CFRP


    Subtitle :

    DLR contribution to the LuFo IV joint research project AeroStruct


    Contributors:

    Published in:

    CEAS Aeronautical Journal ; 8 , 4 ; 673-690


    Publication date :

    2017-10-10


    Size :

    18 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Multidisciplinary optimization of an NLF forward swept wing in combination with aeroelastic tailoring using CFRP

    Wunderlich, Tobias / Dähne, Sascha / Heinrich, Lars et al. | Online Contents | 2017


    Aeroelastic tailoring of an NLF forward swept wing

    Wunderlich, Tobias / Dähne, Sascha | Springer Verlag | 2017


    Aeroelastic tailoring of an NLF forward swept wing

    Wunderlich, Tobias / Dähne, Sascha | Online Contents | 2017