本文以ZY-1（5.5mm×3.1mm）、ZY-2（7.0mm×3.1mm）双喷嘴摇臂式喷头为研究对象,利用喷洒水滴弹道轨迹运动模型分开模拟了喷头主、副喷嘴水滴的飞行轨迹,并将模拟值与实测值进行了比对,结果表明喷洒水滴飞行距离模拟值与实测值的总体分布趋势相近,尤其对于1.0-2.0mm水滴飞行距离的模拟值与实测值较为接近,模拟效果较好,但对于大直径水滴飞行距离的模拟尚存在较大差异。选择风速、喷头工作压力、流速系数、喷头安装高度、喷射仰角、空气温度作为主要因素进行喷洒水滴飞行轨迹敏感性分析,结果表明,对喷洒水滴飞行轨迹影响程度由大到小依次为流速系数、喷头工作压力、风速、然后是喷射仰角和喷头安装高度,受空气温度的影响最小。%The ZY-1 （5.5mm×3.1mm）, ZY-2 （7.0mm×3.1mm） sprinkler with double-nozzle are taken as the research objects to simulate separately the flight path trajectory of droplets, and then the indoor experiment data of trajectory are compared with the simulation results. ]t is found that the simulated and observed values for 1.0-2.0mm droplets are in good agreement. But, for the large-diameter droplets the simulation is still quite different from the observed values. The wind velocity, nozzle working pressure, flow rate coefficient, installation height, angle of nozzle and air temperature are selected as the main factors to carryout the sensitivity analysis. The results show that the flow rate coefficient is the most influential factor, followed by the pressure of work, wind velocity, and then spray nozzle installation height and angle of nozzle, the minimum is the air temperature.
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