Traditionally, the internal of aircraft wings is generally straight spars and ribs. The use of curvilinear spars and ribs (SpaRibs) on the wing can greatly broadens the design space and further improve the aeroelastic performance. An aeroelastic comprehensive optimization design method is proposed for flying-wing aircraft with SpaRibs based on genetic algorithm. The supersonic double lattice method is used to calculate the unsteady aerodynamics, and the modal method is used to carry out the static aeroelastic analysis The flutter velocity is optimized by considering the static aerodynamic deformation constraint. A comprehensive optimization design calculation example of a flying wing aircraft shows that the flutter velocity can be increased by 20.34% on the basis of a weight increase of 1.321% for a wing with a SpaRibs structure. It provides a new idea for the system design of the flying wing aircraft structure and project a fast and effective aeroelastic comprehensive optimization design method.


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    Title :

    Aeroelastic optimization design of SpaRibs wing structure


    Contributors:
    Mellal, Mohamed Arezki (editor) / Rao, Yunqing (editor) / Zhou, Quanzhi (author) / Yang, Youxu (author) / Yu, Lingfu (author) / Liu, Yisi (author) / Sun, Lubin (author)

    Conference:

    Third International Conference on Mechanical Design and Simulation (MDS 2023) ; 2023 ; Xi'an, China


    Published in:

    Proc. SPIE ; 12639


    Publication date :

    2023-06-16





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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