基于蜻蜓膜翅结构的飞机加强框的仿生设计

 由于机动性和能耗的要求，飞机设计过程当中轻量化设计是十分重要的。经过亿万年的进化，在承受自身重量及生长环境的载荷过程中，生物体获得了适应环境的最优结构。通过分析蜻蜓膜翅和飞机机身加强框的结构相似性，提取决定蜻蜓膜翅结构优良力学性能的结构特征，将其应用到飞机机身加强框的设计当中，并用有限元工具验证了结构的优化效果。在同样的承载条件下，仿生型结构的比刚度比原型结构提高了2%~6%，比强度提高了1%~8%。同时，仿生型结构的最大应力减小，而最小应力明显增大，因此其应力分布更加均匀，从而体现了仿生结构件材料的优化分布和最大效能。

Bionic Design of Aircraft Reinforced Frame Based on Structure of Dragonfly Wing

Design for light weight is very important in overall aircraft design because of the need for aircraft mobility and low energy consumption.In nature,after the evolution of hundreds of millions years,the organism obtains the optimal structure to adapt to the living environment based on the effect of gravity and environmental load.After an analysis of the load similarity between an aircraft reinforced frame and a dragonfly wing,some feature structures,which influence the mechanical proprieties of the dragonfly...