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Development of Autonomic Micro Air Vehicles with mechanical flapper

机械挡板自主微型飞行器的研制

基本信息

批准号：
16560157
负责人：
IIDA Akiyoshi
金额：
$ 1.73万
依托单位：
Kogakuin University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560157/
关键词：
Flapping airfoil Micro Air Vehicle q Vortex Flow PIV Discrete Vortex Unsteady aerodynamic Force

项目摘要

The purpose of this investigation is to develop Micro Air Vehicles with mechanical flapper like flying insects. Since insects use a low-Reynolds number effect and changing flow properties, the insects' flight is different from the flight of man-made airplane wings. In order clarify the aerodynamic properties of flying insects, aerodynamic forces and flow fields were measured by a micro load cell system and a dynamic PIV system. As a result, the feathering angles of flapping airfoils are important in generating a vertical force with a flapping wing. The experimental result showed the simple U-shaped separation occurs in flow around a dragonfly. The U-shaped separation is one of the simplest analytical solutions of the Navier-Stokes equation in dynamic stall flow over a wing. These vortex tubes play an important role in the aerodynamic force generated by the flapping wings of insects.Moreover, we attempted to develop a mechanical flapper for MAV based on these experimental results.Light-weight wings were manufactured with MEMS technologies. The weight and stiffness of developed wings are almost same as real insects. The averaged lifting force of the mechanical flapper was same order of aerodynamic force of real insects. The experimental results also showed the lifting force was proportional to the second power of the flapping frequency. The developed mechanical flapper generated large aerodynamic force when the feathering angle was set to suitable angle. However it was not enough to lift up the mechanical flapper. Because of the total weight of the mechanical flapper was 10 times larger than that of the real insects. The result indicated that the flapping frequency was necessary for 40.8 Hz to lift up the machine. The developed mechanical flapper had a potential of the hovering flight. Now, we are making up the modified mechanical flapper which flapping frequency is over 50 Hz.

本研究的目的是研制具有类似飞行昆虫的机械扑翼的微型飞行器。由于昆虫利用低雷诺数效应和改变流动特性，昆虫的飞行不同于人造飞机机翼的飞行。为了研究昆虫的气动特性，利用微型测力传感器系统和动态PIV系统测量了飞行昆虫的气动力和流场。因此，扑翼的羽化角度对于扑翼产生垂直力是重要的。实验结果表明，在蜻蜓周围的流动中发生了简单的U型分离。U形分离是机翼动态失速流动中N-S方程最简单的解析解之一。这些涡流管在昆虫拍动翅膀所产生的气动力中起着重要的作用。此外，我们还在这些实验结果的基础上尝试开发了一种用于微型飞行器的机械襟翼。发育的翅膀的重量和硬度与真正的昆虫几乎相同。机械拍板的平均升力与真实昆虫的气动力相同数量级。实验结果还表明，提升力与拍打频率的二次方成正比。当扑翼角度设置为合适的角度时，所研制的机械扑翼产生较大的气动力。然而，这还不足以掀起机械挡板。因为机械拍子的总重量是真正昆虫的10倍。结果表明，40.8赫兹的摆动频率是整机举升所需的频率。研制的机械襟翼具有悬停飞行的潜力。现在，我们正在制作拍打频率超过50赫兹的改进型机械拍板。

项目成果

期刊论文数量（13）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

羽ばたき翼周りの流れの可視化

扑动翅膀周围流动的可视化

DOI：
发表时间：
2004
期刊：
日本流体力学会誌「ながれ」 23巻6号
影响因子：
0
作者：
飯田明由;水野明哲;金野祥久;中村瑞木
通讯作者：
中村瑞木

Correlation Analysis in terms of Unsteady Aerodynamic Force and Flow Field around a Flying Insect (in Japanese)

非定常气动力与飞行昆虫周围流场的相关分析（日语）

DOI：
发表时间：
2007
期刊：
Transactions of the Japan Society of Mechanical Engineers Series(B)(In press)
影响因子：
0
作者：
Ishida;Masahiro;植木弘信;Akiyoshi Iida et al.
通讯作者：
Akiyoshi Iida et al.

Correlation Between Vortex Structures and Aerodynamic Force of Insect's Flight

涡结构与昆虫飞行气动力的相关性

DOI：
发表时间：
2005
期刊：
The 6th KSME-JSME Thermal and Fluids Engineering Conference (CD-ROM)
影响因子：
0
作者：
Mizuki Nakamura;et al.
通讯作者：
et al.

Development of Micro Air Vehicle with Mechanical Flapper based on Insects (in Japanese)

基于昆虫的机械挡板微型飞行器的研制（日文）

DOI：
发表时间：
2007
期刊：
Journal of Defense Technology 2007-2
影响因子：
0
作者：
Kweon;Y.H.;Miyazato;Y.;Aoki;T.;Kim;H.D.;Setoguchi;T.;ターボ機械協会編分担執筆者(太田正廣);Akiyoshi Iida
通讯作者：
Akiyoshi Iida

スモークワイヤ法による昆虫周りの流れの可視化

使用烟线法可视化昆虫周围的流动