Because of the advantages of light weight, small size, and good maneuverability, the bio-inspired micro aerial vehicle has a wide range of application prospects and development potential in military and civil areas, and has become one of the research hotspots in the future aviation field. The beetle’s elytra possess high strength and provide the protection of the abdomen while being functional to guarantee its flight performance. In this study, the internal microstructure of beetle’s elytra was observed by scanning electron microscope (SEM), and a variety of bionic thin-walled structures were proposed and modelled. The energy absorption characteristics and protective performance of different configurations of thin-walled structures with hollow columns under impact loading was analyzed by finite element method. The parameter study was carried out to show the influence of the velocity of impactor, the impact angle of the impactor and the wall thickness of honeycomb structure. This study provides an important inspiration for the design of the protective structure of the micro aerial vehicle.

由于具有重量轻，体积小，机动性好等优点，受到生物启发的微型航空器在军事和民用领域具有广阔的应用前景和发展潜力，已成为未来航空研究的热点之一。领域。甲壳虫的鞘翅具有很高的强度，并在保护其飞行性能的同时为腹部提供保护。在这项研究中，通过扫描电子显微镜（SEM）观察了甲虫鞘翅的内部微观结构，并提出并建模了各种仿生薄壁结构。采用有限元方法分析了空心圆柱薄壁结构在冲击荷载作用下不同构型的能量吸收特性和防护性能。进行了参数研究，表明了冲击器的速度，冲击器的冲击角度和蜂窝结构壁厚的影响。该研究为微型飞行器防护结构的设计提供了重要的启示。