An unmanned aerial vehicle (10) of the present invention is configured to further comprise a drag reduction device (300) in a general unmanned aerial vehicle, wherein the drag reduction device (300) reduces air resistance applied to a fuselage (100) through a front panel (310) and an upper panel (320) variably operated by a lifting and lowering means (330) by being interlocked with a slope of the fuselage (100) changed in accordance with flight speed of the unmanned aerial vehicle, and reduces a vortex phenomenon generated in a lower portion of the fuselage (100) in accordance with an increase of the flight speed of the unmanned aerial vehicle through a lower panel (340) coupled to the lower portion of the fuselage (100), thereby reducing the entire drag.
이 발명의 무인 비행체(10)는 일반적인 무인 비행체에다 항력 감소장치(300)를 더 갖도록 구성한 것으로서, 항력 감소장치(300)는 무인 비행체의 비행속도에 따라 변화하는 동체(100)의 기울어짐에 연동하여 승하강수단(330)에 의해 가변적으로 작동하는 전방패널(310) 및 상부패널(320)을 통해 동체(100)에 작용하는 공기저항을 감소시키고, 동체(100)의 하부에 결합되는 하부패널(340)을 통해 무인 비행체의 비행속도 증가에 따라 동체(100)의 하부에서 발생하는 와류현상을 감소시켜, 전체적인 항력을 감소시킨다.
Unmanned aerial vehicle with drag reduction structure
항력 감소장치를 갖는 무인 비행체
2021-02-22
Patent
Electronic Resource
Korean
Pneumatic stealth and drag reduction structure of high-subsonic-speed unmanned aerial vehicle
European Patent Office | 2024
|European Patent Office | 2021
|