Institute of Zoology, Functional Morphology and Biomechanics, Christian-Albrechts-University, Kiel, Germany.
Department of Mechanical Engineering, University of Guilan, Rasht, Iran.
Sci Rep. 2016 Dec 14;6:39039. doi: 10.1038/srep39039.
Dragonflies are fast and manoeuvrable fliers and this ability is reflected in their unique wing morphology. Due to the specific lightweight structure, with the crossing veins joined by rubber-like resilin patches, wings possess strong deformability but can resist high forces and large deformations during aerial collisions. The computational results demonstrate the strong influence of resilin-containing vein joints on the stress distribution within the wing. The presence of flexible resilin in the contact region of the veins prevents excessive bending of the cross veins and significantly reduces the stress concentration in the joint.
蜻蜓是快速且灵活的飞行者，这种能力反映在它们独特的翅膀形态上。由于特定的轻量级结构，带有交叉的脉由橡胶状的肌腱连接，翅膀具有很强的可变形性，但在空气碰撞中能抵抗高的力和大的变形。计算结果表明含有肌腱的脉关节对翅膀内部的应力分布有很强的影响。在脉的接触区域存在灵活的肌腱，可防止交叉脉过度弯曲，并显著降低关节处的应力集中。
