复合微下击暴流风场下小型无人机的飞行分析  

Flight Analysis of Small UAV Under Composite Micro-downburst Wind Field

作　　者：王文博 李海城 吴超[1] 车晓涛[1] 杜明磊 WANG Wenbo;LI Haicheng;WU Chao;CHE Xiaotao;DU Minglei(Xi′an Mordern Control Technology Research Institute,Xi′an 710065,Shaanxi,China)

机构地区：[1]西安现代控制技术研究所,陕西西安710065

出　　处：《弹箭与制导学报》2025年第1期17-25,共9页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为研究复合微下击暴流风场对轻小型固定翼无人机巡航段的影响,文中构建了Dryden大气紊流模型与微下击暴流风场模型,融合后得到复合微下击暴流风场,并以电动无人机为例,进行了六自由度刚体弹道模型仿真分析。仿真结果表明,所建立的复合风场具有较好的随机特性与典型的风切变特征,能够有效描述实际复合微下击暴流风场的分布及变化;在风场影响下,该电动无人机高度损失明显,在中心诱导速度为10~25 m/s时,损失高度达168~537 m;此外,无人机的航时、攻角、侧滑角以及动力余量等飞行参数亦发生了不同程度的变化。To study the influence of the composite microburst wind field on the cruise phase of a light and small fixed-wing unmanned aerial vehicle(UAV),in this paper,a Dryden atmospheric turbulence model and a microburst model are constructed,and after fusing them,a composite microburst wind field model is created.Take a specific electric-powered UAV as the object of study and carry out a six-degree-of-freedom rigid body ballistic model simulation analysis,the simulation results show that the newly established composite wind field model has better randomness and typical wind shear characteristics and it can effectively depict the actual composite microburst wind field distribution and change.Under the influence of this composite wind field,the UAV has experienced a significant loss of height,and when the central induced velocity is between 10~25 m per second,the loss of height reached 168~537 m.Furthermore,the flight parameters of UAV,including flight duration,angle of attack,sideslip angle,and power margin,have changed in different degree.

关 键 词：Dryden模型 微下击暴流 无人机 巡航段 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程] TP391.9[自动化与计算机技术—计算机应用技术]