Effects of abdomen undulation in energy consumption and stability for monarch butterfly
Effects of abdomen undulation in energy consumption and stability for monarch butterfly
复制标题
DOI：
10.1088/1748-3190/abce4d
复制
发表时间：
2021-07-01
影响因子：
3.4
通讯作者：
Lee, Taeyoung
中科院分区：
文献类型：
--
作者：
Tejaswi, K. C.;Sridhar, Madhu K.;Lee, Taeyoung
帝王蝶的飞行特点是翅膀相对较大，拍打频率相对较低，腹部波动。本文提出了一种可以应用于帝王蝶尺度下翅膀、身体和腹部耦合运动的扑翼飞行器的动力学，并在构型流形上直接表述。由此产生的胸部和腹部的运动以及合力与一只活的帝王蝶的飞行一致。在此基础上，说明了腹部波动对帝王蝶飞行的有益影响。对于悬停和向前爬升轨迹，腹部波动导致能量和动力消耗的减少。此外，Floquet稳定性分析表明，两种飞行模式下的周期轨道都是稳定的。特别是腹部的起伏提高了稳定性。与飞蛾、大黄蜂和果蝇模型相比，帝王蝶具有优越的稳定性。
The flight of monarch butterflies is characterized by a relatively large wing, flapping at a relatively low frequency coupled with abdomen undulation. This paper presents the dynamics of a flapping wing flyer that can be applied to the coupled motion of the wing, body, and abdomen at the monarch butterfly scale, which is formulated directly on the configuration manifold. The resulting thorax and abdomen motion as well as the resultant forces are consistent with the flight of a live monarch butterfly. Based on these, beneficial effects of the abdomen undulation in the flight of monarch butterflies are illustrated. For both hover and forward-climbing trajectories, the abdomen undulation results in a reduction of the energy and power consumption. Furthermore, the Floquet stability analysis shows that the periodic orbits associated with both flight modes are stable. In particular, the abdomen undulation improves the stability. Compared to the dynamics of hawkmoth, bumblebee, and fruitfly models, the monarch possesses superior stability properties.