Membranous hind wings of the beetles can be folded under the elytra when they are at rest, and rotate and lift the elytra up only when they need to fly. This characteristic provides excellent flying capability and good environment adaptability. Inspired by the beetles, the new type of the bionic folding wing for the flapping wing Micro Air Vehicle (MAV) was designed. This flapping wing can be unfolded to get a sufficient lift in flight, and can be folded off flight to reduce the wing area and risk of the wing damage. The relationship between the internal pressures of the hydraulic system for the bionic wing folding varies and temperature was analyzed, the results show that the pressure within the system tends to increase with temperature, which proves the feasibility of the schematic design in theory. Stress analysis of the bionic wing was conducted, it was shown that stress distributions and deformation of the bionic wing under the positive and negative side loading are basically the same, which demonstrates that the strength of the bionic folding wing meets the requirements and further proves the feasibility of the schematic design.

甲虫的膜状后翅在静止时可以折叠在鞘管下，只有在需要飞行时才旋转并向上提拉鞘管。该特性提供了出色的飞行能力和良好的环境适应性。受甲虫的启发，设计了用于扑翼微型飞行器（MAV）的新型仿生折叠翼。该襟翼可以展开以在飞行中获得足够的升力，并且可以折叠起来以减小机翼面积并减小机翼损坏的风险。分析了仿生机翼折叠的液压系统内部压力与温度之间的关系，结果表明，系统内部压力随温度升高而趋于升高，从理论上证明了方案设计的可行性。