数字农科院2.0

DESIGN AND EXPERIMENTAL RESEARCH ON DISTRIBUTION MECHANISM OF LIQUID MANURE SPREADER

文献类型： 外文期刊

作者： Xu, Binxing;Chen, Mingjiang;Ma, Biao;Zhao, Weisong;Fu, Jingjing;Gao, Qimin;Wu, Aibin

作者机构：

关键词： liquid manure;distribution mechanism;parameter optimization;orthogonal test;design

期刊名称： INMATEH-AGRICULTURAL ENGINEERING

ISSN： 2068-4215

年卷期： 2022 年 67.0 卷 2 期

页码：

收录情况： EI（2022版）

摘要： To solve the problems of high error on both sides and high coefficient of variation during liquid manure distribution, this work designed a distribution mechanism integrating conveying, stirring and distribution functions, combined with the physical properties of selected liquid manure. Taking rotor speed, inlet flow and moving cutter structure as test factors, the Design-Expert 8.0.6 software was used to design three-factor three-level quadratic regression orthogonal test and establish response surface regression model. Through observing relative error and coefficient of variation, uniform distribution characteristics test and parameter optimization of liquid manure were performed. The results showed that the primary and secondary order of influencing factors on the relative error is rotor speed> inlet flow > moving cutter structure; the primary and secondary order of influencing factors on the coefficient of variation is inlet flow > moving cutter structure> rotor speed. Further, the optimization test indicated that 170 r/min rotor speed, 80 m(3)/h inlet flow, combined with arc-shaped moving cutter structure could output 10.50% relative error and 9.30% variation rate, which was less than 5% relative to the model predicted value.

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