现代防御技术 ›› 2022, Vol. 50 ›› Issue (1): 19-24.DOI: 10.3969/j.issn.1009-086x.2022.01.003

• 飞行器技术 • 上一篇    下一篇

某型旋翼无人机极限风速下运动失稳及失能特性研究

刘群, 杨昭, 周传霞   

  1. 北京空间机电研究所,北京 100076
  • 收稿日期:2021-06-15 修回日期:2021-08-30 出版日期:2022-02-28 发布日期:2022-02-23
  • 作者简介:刘群(1983-),男,山东淄博人。研究员,博士,主要研究方向为无人机防御。

Study on Motion Instability and Disability Characteristics of Rotor UAV Under Extreme Wind Speed

Qun LIU, Zhao YANG, Chuan-xia ZHOU   

  1. Beijing Institute of Space Mechanics & Electricity,Beijing 100076,China
  • Received:2021-06-15 Revised:2021-08-30 Online:2022-02-28 Published:2022-02-23

摘要:

抗风能力是决定无人机应用范围和生存能力的关键。以某型旋翼无人机为研究对象,利用风洞试验设备和双目视觉非接触式测量系统,对无人机极限风速下的失稳特性(姿态或速度)以及动力组件的失能特性开展了精细化测量和研究,获得了某型旋翼无人机的临界失稳条件和特性以及易损部组件的失能特性。结果表明:17 m/s为无人机的临界失稳风速,无人机以40°攻角后退;风速为28 m/s时,无人机动力系统停机;风速达到34 m/s时,旋翼几乎无变形。从利用风场破坏无人机角度,失稳坠落最容易,动力系统失能次之,旋翼破坏最为困难。

关键词: 无人机, 风洞, 抗风能力, 失稳, 失能

Abstract:

Wind resistance is the key to determine the application scope and survival capacity of UAV(unmanned aerial vehicle). This paper takes a rotor UAV as the research object, and makes use of wind tunnel test equipment and binocular vision non-contact measurement system to conduct fine measurement and research on the instability characteristics (attitude or speed) and the disability of each component under the extreme wind speed of UAV. The critical instability conditions and characteristics of the rotor UAV and the disability characteristics of vulnerable parts are obtained. The results show that speed of 17 m/s is the critical instability wind speed of UAV, and the UAV is 40° angle of attack backward. When the wind speed is 28 m/s, the UAV power system will stop. When the wind speed reaches 34 m/s, the rotor is almost free of deformation. From the view of using wind field to destroy UAV, the most easy way is instability to fall, the second is to destroy the power system, and the most difficult is to damage the rotor.

Key words: UAV(unmanned aerial vehicle), wind tunnel, wind resistance, instability, disablity

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