旋翼无人机大气探测设备布局仿真优化设计

Simulation and Optimization Design of Atmospheric Detection Equipment Layout Based on UAV

为了提高多旋翼无人机气象探测的准确度,基于CFD方法对偶数桨旋翼无人机的流场进行分析,比较了不同旋翼数和不同旋翼间距离的无人机的流场,分析了流场的特点;同时,结合大气探测设备对温湿度、气体浓度及颗粒物浓度测量的基本原理,分析了多旋翼无人机扰流场对探测设备测量精度的影响及其原因;由此确定了进行大气探测的多旋翼无人机尽量根据情况选择旋翼数较多、翼间距较大的机型,探测设备安装位置应当靠近无人机中心轴靠近旋翼旋转平面处的相对静风区,经实验对比,通过优化可以有效减小测量的误差;并提出可利用多旋翼无人机流场特点设计多旋翼无人机专用探测设备的构想。

In order to improve the accuracy of multi--rotor UAV meteorological detection, CFD method is used to analyze the flow field of even--rotor unmanned aerial vehicle （UAV）. The flow field of UAVs with different rotor numbers and distance between different rotors is compared. The characteristics of the flow field are analyzed. At the same time, the influence of the multi -- rotor UAV on the measurement accuracy of the detection equipment is analyzed based on the basic principle of measurement of temperature and humidity, gas concentration and particle concentration. It is determined that the multi-- rotor unmanned aerial vehicle （UAV） for atmospheric detection should choose the number of rotors with large number of windings as far as possible. The installation position of the detection equipment should be close to the relative static wind at the axis of rotation of the unmanned aerial vehicle Area, by experimentation, through optimization can effectively reduce the measurement error. And put forward the idea of using the multi-- rotor unmanned aerial vehicle flow field in the future to design the multi--rotor unmanned aerial vehicle special detection equipment.