不同品种大豆种子充填特性的EDEM仿真分析  

Analysis of EDEM simulation of different soybean seed filling characteristics

作　　者：顿国强 杨永振 郭艳玲[1] 刘晓龙 于春玲 杜佳兴 张敬涛[2] DUN Guoqiang;YANG Yongzhen;GUO Yanling;LIU Xiaolong;YU Chunling;DU Jiaxing;ZHANG Jingtao(College of Mechtronic Engineering,Northeast Forestry University,Harbin 150040,China;Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences,Jiamusi 154007,China)

机构地区：[1]东北林业大学机电工程学院,黑龙江哈尔滨150040 [2]黑龙江省农业科学院佳木斯分院,黑龙江佳木斯154007

出　　处：《河南农业大学学报》2019年第1期93-98,共6页Journal of Henan Agricultural University

基　　金：中央高校建设世界一流大学(学科)和特色发展引导专项资金项目(41113278);科技部国家科技支撑计划项目(2014BAD11B01-A02);中央高校基本科研业务费专项(2572017BB10);国家自然科学基金项目(51475089)

摘　　要：为了研究不同品种大豆种子在排种器中的充填特性,以东农52、黑河44和青仁黑豆为研究对象,测量种子的长、宽、厚,并计算其均径、球度、变异系数等参数,分析了不同种子之间参数的差异以及种子长、宽、厚的比例分布。以窝眼轮式排种器为试验模型,运用EDEM对不同品种大豆种子的充填特性进行模拟试验,并对试验数据进行分析。结果表明,种子品种间的差异对单粒率、多粒率影响显著,对空粒率影响不显著;随着球度的减小及变异系数的增加,单粒率平均值从96.33%减小到82%,多粒率平均值从2%上升到16.33%。In order to study the filling characteristics of different varieties of soybean seeds in the seed metering device,Dongnong 52,Heihe 44 and Qingren black beans were used as research objects. The length,width and thickness of the seeds were measured. Some parameters such as the average diameter,sphericity and variable coefficient were calculated. The differences between the parameters of different seeds and the percentage distribution of seed length,width and thickness were analyzed. The cell wheel seed metering device was used as the experimental model,and the filling characteristics of different varieties of soybean seeds were simulated by EDEM,and the test data were analyzed. The results showed that the difference between seed cultivars had significant effects on the rate of single seed and the multi-seed rate,but it had insignificant effects on the rate of empty seeds. With the decrease of sphericity and the increase of coefficient of variation,the rate of single seed decreased from 96.33 % to 82 %,and the multi-seed rate increased from 2 % to 16.33 %.

关 键 词：大豆 EDEM 充填特性 模拟试验 窝眼轮排种器 

分 类 号：S223.2[农业科学—农业机械化工程]