Aeroelastic optimization design of SpaRibs wing structure

Quanzhi Zhou; Youxu Yang; Lingfu Yu; Yisi Liu; Lubin Sun

doi:10.1117/12.2681990

16 June 2023 Aeroelastic optimization design of SpaRibs wing structure

Quanzhi Zhou, Youxu Yang, Lingfu Yu, Yisi Liu, Lubin Sun

Proceedings Volume 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023); 126390I (2023) https://doi.org/10.1117/12.2681990
Event: Third International Conference on Mechanical Design and Simulation (MDS 2023), 2023, Xi'an, China

Abstract

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.

Citation Download Citation

Quanzhi Zhou, Youxu Yang, Lingfu Yu, Yisi Liu, and Lubin Sun "Aeroelastic optimization design of SpaRibs wing structure", Proc. SPIE 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023), 126390I (16 June 2023); https://doi.org/10.1117/12.2681990

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