The significance of moment-of-inertia variation in flight manoeuvres of butterflies
The significance of moment-of-inertia variation in flight manoeuvres of butterflies
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DOI：
10.1088/1748-3182/7/4/044002
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发表时间：
2012-12-01
影响因子：
3.4
通讯作者：
Mittal, R.
中科院分区：
文献类型：
--
作者：
Lin, T.;Zheng, L.;Mittal, R.
本研究的目的是了解的作用，身体的转动惯量的变化可能会发挥在飞行机动的昆虫。高速，高分辨率的视频测量被用来量化的轨迹和身体形态的彩绘夫人蝴蝶在飞行机动;的3D运动学的昆虫的身体各部位的质量中心的实验确定。昆虫的质量特性的测量被用来参数化一个简单的蝴蝶飞行动力学模型。尽管与昆虫的总质量相比，扑翼的质量很小，但这些实验和随后的分析表明，飞行过程中惯性矩的变化足以影响这些昆虫的机动性。
The objective of this study is to understand the role that changes in body moment of inertia might play during flight manoeuvres of insects. High-speed, high-resolution videogrammetry is used to quantify the trajectory and body conformation of Painted Lady butterflies during flight manoeuvres; the 3D kinematics of the centre of masses of the various body parts of the insect is determined experimentally. Measurements of the mass properties of the insect are used to parameterize a simple flight dynamics model of the butterfly. Even though the mass of the flapping wings is small compared to the total mass of the insect, these experiments and subsequent analysis indicate that changes in moment of inertia during flight are large enough to influence the manoeuvres of these insects.