摘 要

随着我国经济的迅猛发展，对于各地区的土地资源利用情况以及农业经营模式选择有更高的要求。关于农用植保无人机喷洒技术，本文介绍了国内外无人机喷洒技术的现状，分析技术关键要领，理论试验双方面研究，并对其在病虫害防治方面需要研制更高效的无人机喷洒设备做相应的要求，有利于减少农药使用率，提高植物抗虫性，为生态环境保护做出贡献。根据我国的农业发展现状，分析了我国近期和未来对航空植保无人机的巨大的市场需求，并在此基础上对航空植保无人机的研究，研制和推广提出相关的建议。

在对无人机喷雾进行研究时，我们通过3个试验来研究。无人机风场试验，无人机喷雾模拟试验，无人机喷雾户外试验。系统的对无人机喷雾进行研究，找出规律。研究发现，无人机的风速随着高度的增加而减小，在无人机旋翼下的风速要比非旋翼下的风速大；无人机喷雾在中间位置的粒径大小和雾滴沉积比较多，然后往两边逐渐减小。

关键词：无人机喷洒；无人机风场试验；无人机喷雾试验；雾滴沉积分布

What a uav rotorcraft spray effect research

ABSTRACT

With the rapid development of our economy, for regional land resources utilization and agricultural management mode choice has higher requirements. About agricultural plant protection spray unmanned aerial vehicle (uav) technology, this paper introduces the present situation of the unmanned aerial vehicle (uav) spraying technology at home and abroad, this paper analysis the key essentials, theory study, both experiment and the need to develop more efficient in terms of plant diseases and insect pests prevention and control of unmanned aerial vehicle (uav) spraying equipment to do the corresponding requirements, help reduce pesticide utilization rate, improve the plant resistance to insects, contribute to ecological environment protection. According to the situation of agricultural development in our country, analyzes the recent and future for aviation plant protection of unmanned aerial vehicle (uav) the huge market demand, and on the basis of the study of aviation plant protection unmanned aerial vehicle (uav), the development and promotion of body ate the relevant Suggestions.

In the study of the UAV spray, we study the 3 experiments. UAV wind field test, UAV spray simulation test. System of the UAV spray to study, to find the law. Study found that UAV wind speed with the increase of the height of the decreases in man-machine rotor speed than the rotor of wind speed; UAV spray in the middle position of the particle diameter size and droplet deposition more, then to both sides gradually decreased, until the edge decreased to 0.

Key words：Unmanned aerial vehicle spraying；UAV wind field test；UAV spray test;Droplet deposition

目 录

第一章 绪论.............................................................................................................1

1.1选题背景与意义.....................................................................................................1

1.2国内外研究现状.....................................................................................................1

1.2.1国外研究现状................................................................................................1

1.2.2国内研究现状................................................................................................3

1.2.3目前发展趋势................................................................................................3

1.3航空喷洒技术.........................................................................................................3

1.4论文研究内容.........................................................................................................4

1.5研究方法.................................................................................................................5

1.6本章小结.................................................................................................................5

第二章 无人机试验系统的结构与设计..........................................................6

2.1无人机结构及参数.................................................................................................6

2.1.1无人机结构....................................................................................................6

2.1.2设计参数及尺寸............................................................................................6

2.2无人机喷雾原理分析.............................................................................................7

2.3无人机试验系统的设计及参数.............................................................................8

2.3.1试验系统的设计思路....................................................................................8

2.3.2系统设计参数及尺寸....................................................................................9

2.4供液系统的设计.....................................................................................................9

2.5本章小结...............................................................................................................10

第三章 多旋翼无人机风场的测定试验........................................................11