无人机特征尺寸与地面撞击风险等级关系的研究
Study on the Relation between UAV Characteristic Dimension and Ground Impact Risk Level
王聪 1雷雨 2钟磊 3郑晓霞2
作者信息
- 1. 上海翱坤航空科技有限公司,上海 201600
- 2. 成都航空职业技术学院,成都 610100
- 3. 中国民用航空总局第二研究所,成都 610041
- 折叠
摘要
无人机运营企业有必要掌握自身所运营的具体型号中大型无人机的地面撞击风险等级上下限,然而现有的方法存在所需参数偏多、公式计算繁琐的不足.通过建立中大型无人机在宽松和严苛运行环境下事故间隔与特征尺寸的函数关系,并完善以事故间隔划分地面撞击风险等级的方案,提出了一种采用特征尺寸快速获取地面撞击风险等级上下限的方法.对于同一型号的中大型无人机,其地面撞击风险等级上下限相差3～4个等级.该差异有力否定了"无人机特征尺寸大,地面撞击风险就大"的错误观点,同时反映了无人机地面撞击风险具有较大的调控空间.无人机企业应当格外关注无人机的运行环境,采取优化飞行路径、实行错峰运行、规避不利气象条件等措施,以缓解无人机地面撞击风险.
Abstract
UAV operating companies need to know the upper and lower limit of the ground impact risk level of the specific models of medium and large UAVs they operate.However,the existing methods have the deficiencies of requiring many parameters and com-plex formula calculation.In this paper,the functional relationship between accident interval and characteristic dimension for medium and large UAVs in mild and harsh operating environment were established,respectively.Classification of the ground impact risk level by accident interval was refined.A method of using UAV characteristic dimension to quickly obtain its upper and lower limit of the ground impact risk level was proposed.For medium and large UAVs of the same model,the upper and lower limit of the ground im-pact risk level are 3～4 levels apart.This difference strongly disproves that a large UAV characteristic dimension is associated with a high ground impact risk,and indicates that there is much room for UAV ground impact risk adjustment.UAV operating companies should pay special attention to UAV operating environment,and take measures such as optimizing flight path,implementing off-peak operation,and avoiding adverse meteorological conditions to mitigate UAV ground impact risk.
关键词
无人机/地面撞击/风险等级/事故间隔/特征尺寸Key words
unmanned aerial vehicle/ground impact/risk level/accident interval/characteristic dimension引用本文复制引用
出版年
2024
NETL
NSTL
万方数据