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首页> 外文期刊>The Journal of Experimental Biology >The control of flight force by a flapping wing: Lift and drag production
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The control of flight force by a flapping wing: Lift and drag production

机译：拍打机翼控制飞行力：提升和拖曳生产

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摘要

We used a dynamically scaled mechanical model of the fruit fly Drosophila melanogaster to study how changes in wing kinematics influence the production of unsteady aerodynamic forces in insect flight. We examined 191 separate sets of kinematic patterns that differed with respect to stroke amplitude, angle of attack, Hip timing, flip duration and the shape and magnitude of stroke deviation. Instantaneous aerodynamic forces were measured using a two-dimensional force sensor mounted at the base of the wing. The influence of unsteady rotational effects was assessed by comparing the time course of measured forces with that of corresponding translational quasi-steady estimates. For each pattern, we also calculated mean stroke-averaged values of the force coefficients and an estimate of profile power. The results of this analysis may be divided into four main points.
机译：我们使用果蝇果蝇的动态缩放力学模型来研究机翼运动学的变化如何影响昆虫飞行中不稳定空气动力的产生。我们检查了191个独立的运动模式集，这些运动模式在笔划幅度，攻角，髋关节时机，翻转持续时间以及笔划偏差的形状和大小方面有所不同。使用安装在机翼底部的二维力传感器测量瞬时空气动力。通过将测得力的时间过程与相应的平移准稳态估计的时间过程进行比较，可以评估非稳态旋转效应的影响。对于每种模式，我们还计算了力系数的平均行程平均值以及轮廓功率的估计值。该分析的结果可以分为四个要点。

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