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| Scale model experiment of stability for high-clearance sprayer affected by multifactors |
| 1. College of Mechanical ＆ Electrical Engineering, Shihezi University, Shihezi, Xinjiang832003, China; 2. Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract For the complex working environment of highclearance sprayer, 3D printing technology and similarity criterion of proportional model were used to establish an experimental testing system for wheelground load of sprayer. An evaluation index for the horizontalslope ground of sprayer was proposed based on wheel off the ground. The mixedlevel Taguchi experiment was designed with the terrain roughness in classes E and F as noise factors and with tank position, speed, tread, liquidfilled ratio and slope as control factors. For different instability characteristics, different S／N calculation methods were selected to determine the maximum instability experimental conditions for sprayer under horizontalslope ground. The experimental results show that the linear regression coefficient is above 0.91 with NSE efficiency coefficient above 0.85 and average relative error within 6.5％, which illuminates that the stability evaluation index on sloping ground by Taguchi method is consistent with the measured values.
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Received: 12 June 2018
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2019, Vol. 40 
