多旋翼植保无人机风场下喷洒方式对有效喷幅的影响  

Influence of Spraying Mode of Multi-rotor Plant Protection UAV on Effective Spraying Range

作　　者：符海霸 张伟 张平 孙海天 亓立强 李睿 Fu Haiba;Zhang Wei;Zhang Ping;Sun Haitian;Qi Liqiang;Li Rui(College of Electrical and Information,Heilongjiang Bayi Agricultural University,Daqing 163319,China;South Subtropical Crop Research Institute,Zhanjiang 524091,China)

机构地区：[1]黑龙江八一农垦大学电气与信息学院,黑龙江大庆163319 [2]南亚热带作物研究所,广东湛江524091

出　　处：《农机化研究》2021年第8期164-170,共7页Journal of Agricultural Mechanization Research

基　　金：黑龙江农垦总局指导项目(HKKYZD190504);海南省自然科学基金面上项目(519MS097);黑龙江省大学生创新创业训练计划项目(201910223016);黑龙江八一农垦大学校内培育项目(XZR2017-16)。

摘　　要：为研究多旋翼无人机风场下喷头布置对有效喷幅的影响,基于SolidWorks 2016软件对多旋翼无人机前、中、后螺旋桨喷洒区域风场进行模拟仿真分析。在此风场下,通过改变喷头安装位置,研究机身前方两个螺旋桨不同旋向时无人机旋翼风场对雾滴有效喷幅的影响。试验结果表明,无人机旋翼旋向和喷头布置对有效喷幅有显著影响:当机身前方两个螺旋桨为内旋、飞行速度为4m/s、飞行高度为2m时,喷头前置和后置的有效喷幅分别为3m和2m;相比机身前方两个螺旋桨为外旋时,雾滴总沉积密度分别高出26.8%和66.7%,且有效喷幅分别多出1m和0.5m。该结果可为无人机植保作业过程中耦合风场扰动下雾滴的漂移、沉积的进一步研究提供参考。In order to study the influence of the nozzle arrangement on the effective spray width of the multi-rotor UAV wind field, the simulation and analysis of the wind field in the front, middle and rear propeller spray area of the multi-rotor UAV were carried out based on SolidWorks 2016 software. In this wind field, By changing the installation position of the nozzle, the influence of the rotor wind field on the effective spray width of the droplet was studied when the two propellers in front of the fuselage were rotated in different directions. The test results showed that when the two propellers in front of the fuselage were internal rotation, the flying speed was 4 m/s and the flying height was 2 m, the effective spray widths of the front and rear of the nozzle were 3 m and 2 m respectively;Compared with the two propellers in front of the fuselage, the total deposition density of the droplets was 26.8% and 66.7% higher, respectively, and the effective spray width was 1 m and 0.5 m respectively. This study can provide reference for the further study of drift and deposition of droplets under coupled wind field disturbance during flight operations.

关 键 词：植保无人机 喷雾 数值模拟 旋翼流场 

分 类 号：S252.3[农业科学—农业机械化工程]