OPTIMIZATION RESEARCH OF FERTILIZER GUIDING MECHANISM BASED
ON THE DISCRETE ELEMENT METHOD
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Published:2020-04-30
Issue:1
Volume:60
Page:275-286
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ISSN:2068-2239
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Container-title:INMATEH Agricultural Engineering
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language:en
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Short-container-title:INMATEH
Author:
Zhang Hong Jian1, Li Yu Feng1, Xu Chun Bao1, Liu Shuang Xi2, Quan Ze Kun1, Wang Jin Xing2
Affiliation:
1. College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271000, China 2. College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian, China; Shandong Provincial Key Laboratory of Horticultural Machinery and Equipment, Taian, China
Abstract
Discrete Element Method was used to study the fertilizer guiding mechanism of double-row orchard ditching fertilizer to solve certain problems, such as the low uniformity of fertilization in orchard. Firstly, on the basis of studying the existing B fertilizer guiding mechanism, A and C fertilizer guiding mechanisms were proposed, and three virtual simulation models of the fertilizer guiding mechanism were established. Secondly, the physical parameters of the fertilizer particles were analysed, combined with the dynamic analysis of the falling process of the fertilizer particles, the dynamic model of the fertilizer particles in the three fertilizer guiding mechanisms was established. Finally, three kinds of fertilizer guiding mechanisms A, B and C were analyzed by the discrete element simulation experiment, and the C fertilizer guiding mechanism was the best. Then, the C fertilizer guiding mechanisms under different curvature radius were simulated, the discrete coefficients of the edge region and the middle region were used to evaluate the fertilizer uniformity, and the optimal curvature radius of the C fertilizer guiding mechanism was obtained. The results of simulation and prototype orchard experiments show that the dispersion coefficients of the edge region and the middle region of the C fertilizer guiding mechanism are the smallest, the uniformity of fertilization is the highest, the A fertilizer guiding mechanism is the second, the B fertilizer guiding mechanism is the lowest; in the C fertilizer guiding mechanism under different radius of curvature, when the radius of curvature is 600mm, the dispersion coefficients of the edge region and the middle region of the C fertilizer guiding mechanism are the smallest, and the fertilization uniformity is the highest; after the optimization, the discrete coefficient is reduced from 0.51 to 0.26, and the fertilization uniformity is increased by 49.02%. This study has significant potential to design and processing of orchard ditching fertilizer applicator.
Publisher
R and D National Institute for Agricultural and Food Industry Machinery - INMA Bucharest
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering,Food Science
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