不同品种大豆种子充填特性的EDEM仿真分析
|
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 %.
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 %.
引文
[1] 顿国强,陈海涛,杨纪龙,等.基于Shapley值的大豆种子均径组合预测模型[J].大豆科学,2014,33(6):910-914.
[2] 顿国强,陈海涛,查韶辉.基于EDEM的大豆窝眼轮式排种盘型孔参数优化与验证[J].大豆科学,2016,35(5):830-839.
[3] 袁桂珍,张涛,刘月琴.勺轮式排种器设计与大豆种子离散元法排种仿真[J].农机化研究,2017,39(11):25-29.
[4] 王福林,尚家杰,刘宏新,等.EDEM颗粒体仿真技术在排种机构研究上的应用[J].东北农业大学学报,2013,44(2):110-114.
[5] 杨文敏,吴明亮,何腾飞.型孔轮式排种器排种性能的仿真分析——基于离散元法[J].农机化研究,2015,37(10):34-39.
[6] 鹿瑶,吕钊钦,郑文秀,等.玉米窝眼轮排种器性能影响因素试验研究——基于EDEM[J].农机化研究,2018,40(6):155-161.
[7] 王扬,吕凤妍,徐天月,等.大豆籽粒形状和尺寸分析及其建模[J].吉林大学学报(工学版),2018,48(2):507-517.
[8] 鲍秀兰,孟亮.基于离散元法的窝眼式排种器结构优化仿真[J].江西农业大学学报,2017,39(3):607-614.
[9] 于建群,王刚,心男,等.型孔轮式排种器工作过程与性能仿真[J].农业机械学报,2011,42(12):83-87.
[10] 徐陶,宋井玲,崔志超,等.大蒜种子与机械播种相关特性的分析研究[J].农机化研究,2018,40(5):137-141.
[11] 王磊. 类球形蔬菜种子精量播种机设计与试验[D].武汉:华中农业大学,2015.
[12] 张涛,刘飞,赵满全,等.大豆种子与排种器接触物理参数的测定与离散元仿真标定[J].中国农业大学学报,2017,22(9):86-92.
[13] 刘宏新,徐晓萌,郭丽峰,等.具有复合充填力的立式浅盆型排种器充种机理[J].农业工程学报,2014,30(21):9-16.
[14] CHEN Z R, Yu J Q, XUE D M, et al. An approach to and validation of maize-seed-assembly modelling based on the discrete element method[J]. Powder Technology,2018, 328:167-183.
[15] 冯岩,孙步功,张克平,等.基于EDEM的油菜播种机仿真试验研究[J].干旱地区农业研究,2018,36(2):288-294.
[16] 徐浩,陶栋材,陶韵晖,等.基于EDEM的水稻槽轮排种器排种仿真与试验研究[J].中国农业科技导报,2018,20(3):64-70.
[2] 顿国强,陈海涛,查韶辉.基于EDEM的大豆窝眼轮式排种盘型孔参数优化与验证[J].大豆科学,2016,35(5):830-839.
[3] 袁桂珍,张涛,刘月琴.勺轮式排种器设计与大豆种子离散元法排种仿真[J].农机化研究,2017,39(11):25-29.
[4] 王福林,尚家杰,刘宏新,等.EDEM颗粒体仿真技术在排种机构研究上的应用[J].东北农业大学学报,2013,44(2):110-114.
[5] 杨文敏,吴明亮,何腾飞.型孔轮式排种器排种性能的仿真分析——基于离散元法[J].农机化研究,2015,37(10):34-39.
[6] 鹿瑶,吕钊钦,郑文秀,等.玉米窝眼轮排种器性能影响因素试验研究——基于EDEM[J].农机化研究,2018,40(6):155-161.
[7] 王扬,吕凤妍,徐天月,等.大豆籽粒形状和尺寸分析及其建模[J].吉林大学学报(工学版),2018,48(2):507-517.
[8] 鲍秀兰,孟亮.基于离散元法的窝眼式排种器结构优化仿真[J].江西农业大学学报,2017,39(3):607-614.
[9] 于建群,王刚,心男,等.型孔轮式排种器工作过程与性能仿真[J].农业机械学报,2011,42(12):83-87.
[10] 徐陶,宋井玲,崔志超,等.大蒜种子与机械播种相关特性的分析研究[J].农机化研究,2018,40(5):137-141.
[11] 王磊. 类球形蔬菜种子精量播种机设计与试验[D].武汉:华中农业大学,2015.
[12] 张涛,刘飞,赵满全,等.大豆种子与排种器接触物理参数的测定与离散元仿真标定[J].中国农业大学学报,2017,22(9):86-92.
[13] 刘宏新,徐晓萌,郭丽峰,等.具有复合充填力的立式浅盆型排种器充种机理[J].农业工程学报,2014,30(21):9-16.
[14] CHEN Z R, Yu J Q, XUE D M, et al. An approach to and validation of maize-seed-assembly modelling based on the discrete element method[J]. Powder Technology,2018, 328:167-183.
[15] 冯岩,孙步功,张克平,等.基于EDEM的油菜播种机仿真试验研究[J].干旱地区农业研究,2018,36(2):288-294.
[16] 徐浩,陶栋材,陶韵晖,等.基于EDEM的水稻槽轮排种器排种仿真与试验研究[J].中国农业科技导报,2018,20(3):64-70.