可差动扭转扑翼飞行器的设计和风洞试验研究

常规的仿鸟扑翼飞行器在飞行时机翼只是单纯地上下扑动。为提高扑翼飞行器横航向和航迹控制的品质,设计了一种机翼在扑动的同时可差动扭转的仿鸟扑翼飞行器;在低速风洞中对其进行了一系列测力试验,研究了可差动扭转扑翼飞行器的升力、推力特性,以及机翼差动扭转角、扑动频率、风速、机翼柔性对滚转力矩系数的影响;对设计的扑翼飞行器做了飞行试验,验证了设计的可行性,并与常规扑翼飞行器作了对比,试验结果表明：可差动扭转扑翼可以用于扑翼飞行器的横向控制,并且可以提高其抗风能力和航迹控制精度。

Design and wind tunnel test of an ornithopter with differential twist wings

The wings of traditional ornithopters can only flap up and down. In order to im- prove the quality of the ornithopter lateral-directional and flight path control, an ornithopter with differential twist wings was designed; wind tunnel tests were performed in a low-speed wind tunnel to measure the lift, thrust and rolling moment of the ornithopter, the lift, thrust characteristics of the ornithopter and the influences of the differential twist angle, flapping frequency, wind velocity and the flexibility of the wing structure were investigated; flight tests were performed to demonstrate the design, the conventional ornithopter was tested as contrast. The test results show that the differential twist wings can be used to the lateral control of ornithopter, which can improve the ability of resisting wind and the accuracy of flight path control.