Evaluating effective swath width and droplet distribution of aerial spraying systems on M-18B and Thrush 510G airplanes
作者机构：Beijing Research Center of Intelligent Equipment for AgricultureBeijing 100097China National Research Center of Intelligent Equipment for AgricultureBeijing 100097China Key Laboratory of Agri-informaticsMinistry of AgricultureBeijing 100097China Beijing Key Laboratory of Intelligent Equipment Technology for AgricultureBeijing 100097China Sino-US Agricultural Aviation Cooperative Technology CenterBeijingChina and College StationTXUSA United States Department of Agriculture(USDA)Agricultural Research Service(ARS)Aerial Application Technology Research UnitCollege StationTX 77840
出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)
年 卷 期：2015年第8卷第2期
页 面：21-30页
核心收录：
基 金：funded by the 863 National High-Tech R&D Program of China(Grant No.2012AA101901) National Natural Science Foundation of China(Grant No.41301471) China Postdoctoral Special Foundation(Grant No.2013T60189) International Postdoctoral Exchange Fellowship Program(Grant No.20130043)
主 题：aerial spraying effective swath width droplet distribution coefficients of variation agricultural airplane
摘 要：Aerial spraying plays an important role in promoting agricultural production and protecting the biological environment due to its flexibility,high effectiveness,and large operational area per unit of *** order to evaluate the performance parameters of the spraying systems on two fixed wing airplanes M-18B and Thrush 510G,the effective swath width and uniformity of droplet deposition under headwind flight were tested while the planes operated at the altitudes of 5 m and 4 *** results showed that although wind velocities varied from 0.9 m/s to 4.6 m/s,and the directions of the atomizer switched upward and downward in eight flights,the effective swath widths were kept approximately at 27 m and 15 m for the M-18B and Thrush 510G,respectively,and the latter was more *** addition,through analyzing the coefficients of variation(CVs)of droplet distribution,it was found that the CVs of the M-18B were 39.57%,33.54%,47.95%,and 59.04% at wind velocities of 0.9,1.1,1.4 and 4.6 m/s,respectively,gradually enhancing with the increasing of wind speed;the CVs of Thrush 510G were 79.12%,46.19%,14.90%,and 48.69% at wind velocities of 1.3,2.3,3.0 and 3.4 m/s,respectively,which displayed the irregularity maybe due to change of instantaneous wind ***,in terms of the CVs and features of droplet distribution uniformity for both airplanes in the spray swath,choosing smaller CV(20%-45%)as the standard of estimation,it was found that the Thrush 510G had a better uniform droplet distribution than the *** results provide a research foundation for promoting the development of aerial spraying in China.
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