Abstract Wing flexibility affects the flight performance of flapping-wing micro air vehicles. In this paper, we present a computational approach for the aeroelastic analysis of realistic insect-like flexible flapping wings with hovering and forward-flight modes. A three-dimensional preconditioned Navier–Stokes solver is used with a deforming mesh technique for the aerodynamic analysis of a flapping wing. For the structural analysis, co-rotational (CR) finite elements and CR shell elements are used. As seen from the numerical analysis, wing flexibility leads to thrust increments with the increasing flapping frequency. The advance ratio, however, is the cause of the thrust decrease for flexible flapping wings with high flapping-frequency motions.

中文翻译：

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悬停和前飞中柔韧性对扑翼特性的影响

摘要 机翼柔性影响扑翼微型飞行器的飞行性能。在本文中，我们提出了一种计算方法，用于对具有悬停和前飞模式的逼真昆虫状柔性扑翼进行气动弹性分析。三维预处理 Navier-Stokes 求解器与变形网格技术一起用于扑翼的空气动力学分析。对于结构分析，使用了同向旋转 (CR) 有限元和 CR 壳单元。从数值分析中可以看出，随着扑动频率的增加，机翼灵活性导致推力增加。然而，推进比是具有高扑动频率运动的灵活扑翼机翼推力减小的原因。