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Artificial insect wings with biomimetic wing morphology and mechanical properties

机译：具有仿生翼形态和力学性能的人造昆虫翅膀

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摘要

The pursuit of a high lift force for insect-scale flapping-wing micro aerial vehicles (FMAVs) requires that their artificial wings possess biomimetic wing features which are close to those of their natural counterpart. In this work, we present both fabrication and testing methods for artificial insect wings with biomimetic wing morphology and mechanical properties. The artificial cicada (Hyalessa maculaticollis) wing is fabricated through a high precision laser cutting technique and a bonding process of multilayer materials. Through controlling the shape of the wing venation, the fabrication method can achieve three-dimensional wing architecture, including cambers or corrugations. Besides the artificial cicada wing, the proposed fabrication method also shows a promising versatility for diverse wing types. Considering the artificial cicada wing's characteristics of small size and light weight, special mechanical testing systems are designed to investigate its mechanical properties. Flexural stiffness, maximum deformation rate and natural frequency are measured and compared with those of its natural counterpart. Test results reveal that the mechanical properties of the artificial cicada wing depend strongly on its vein thickness, which can be used to optimize an artificial cicada wing's mechanical properties in the future. As such, this work provides a new form of artificial insect wings which can be used in the field of insect-scale FMAVs.
机译：追求昆虫型扑翼微鸟车（FMAV）的高升力力要求其人造翅膀具有靠近其自然对应物的仿生翼特征。在这项工作中，我们展示了具有仿生翼形态和机械性能的人造昆虫翅膀的制造和测试方法。通过高精度激光切割技术和多层材料的粘合过程来制造人造蝉（Hyalessa Maculaticollis）翼。通过控制翼状阀的形状，制造方法可以实现三维机翼架构，包括胶带或波纹。除了人造蝉翼之外，所提出的制造方法还为不同的翼型表示有前途的多功能性。考虑到人造蝉翼的小尺寸和重量轻的特点，特殊的机械测试系统旨在研究其机械性能。测量弯曲刚度，最大变形率和自然频率，与其自然对应物的抗频率进行比较。测试结果表明，人造蝉翼的力学性能强烈地依赖于其静脉厚度，可用于在未来优化人造蝉翼的机械性能。因此，这项工作提供了一种新形式的人造昆虫翅膀，可用于昆虫级Fmavs领域。

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