Simulation of the operation of a fertilizer spreader based on an outer groove wheel using a discrete element method

被引:25
|
作者
Lv, Hao [1 ,2 ]
Yu, Jianqun [1 ]
Fu, Hong [3 ]
机构
[1] Jilin Univ, Coll Biol & Agr Engn, Changchun 130022, Peoples R China
[2] Jilin Co Daqing Petr Equipment Mfg Grp, Changchun 130062, Peoples R China
[3] Jilin Univ, Coll Comp Sci & Technol, Changchun 130012, Peoples R China
基金
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词
Discrete element method (DEM); Outer groove-wheel fertilizer spreader; Granular compound fertilizer; Optimal design; CAD/CAE; SPINNING DISC; MODEL; FLOW;
D O I
10.1016/j.mcm.2012.12.017
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Fertilizer spreaders based on an outer groove wheel (OGWFS) are widely used in northern China. Proper design of such machines is essential. However, experience and experimental methods are mostly used in their design so it is difficult to achieve an optimal design. We propose an approach for research and optimized design of a fertilizer spreader in the case of an OGWFS and granular compound fertilizer. We first build a 3D discrete element method (DEM) model using a 3D CAD model of the fertilizer spreader and construct a fertilizer particle analysis model using spherical particles. A linear viscoelastic model calculates the contact force between particles and between particles and the fertilizer spreader. We analyze the working process and fertilizer amount using self-developed 3D DEM software. Finally, by changing the CAD model of the machine, we analyzed fertilizer spreaders of different structures and sizes. The DEM simulation results were compared with platform test results. The preliminary results indicate the validity and effectiveness of DEM analysis. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:836 / 845
页数:10
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