大豆科学2016，Vol.35Issue(5)：830-839,10.DOI:10.11861/j.issn.1000-9841.2016.05.0830
基于EDEM的大豆窝眼轮式排种盘型孔参数优化与验证
Parameter Optimization and Validation of Soybean Cell Wheel Seeding Plate Type-hole Based on EDEM
摘要
Abstract
At present,varieties adaptability is the key problem of soybean breeding special seed metering device technology research,the main problem is that seeding plate how to adapt difference of measurement and shape of different soybean species.It is very important to construct precision model between unknown parameters such as type-hole diameter and filling chamfer and known parameters such as seed hundred-grain weight and average diameter.Based on Dongnong 52 physical parameters and theory analysis,acquired each filling state's soybean seed's type-hole average diameter ratio range is 1.43-1.87.EDEM simulation model of soybean breeding plug type metering device in district was established,the type hole average diameter ratio and filling chamfer was selected as factors,seed missing rate and seed re-filling rate was selected as indexes,two factors and five levels second order regression current rotation design experiment was done,test index's mathematical model has been built,variance analysis of test results indicate that,for seed missing rate,average diameter ratio is very significant P ＜ 0.01,filling chamfer is significant 0.01 ＜ P ＜ 0.05,for seed re-filling rate,type hole average diameter ratio is very significant P ＜ 0.01,filling chamfer has a certain influence,but is not significant 0.05 ＜ P ＜ 0.1.Seed missing rate decreased and seed re-filling rate increased with type-hole average diameter ratio's increasing,seed missing rate decreased and then increased with filling chamfer's increasing.The optimal structure parameters of seeding plate's type-hole was that type hole average diameter ratio was 1.64 and filling chamfer was 1.54 mm,seed missing rate was 4.95％ and seed re-filling rate was 6.49％,the metering device had the best working performance.In order to verify optimal type-hole parameters,seed metering device performance contrast test has been done,the results indicated that the seed metering device with optimal parameter had the best working performance.Meanwhile,the research provides a practical new method for design for seeding plate hole of other crops.关键词
农业机械/种子/计算机仿真/大豆/型孔/参数优化/验证Key words
Agricultural machinery/Seed/Computer simulation/Soybean/Type-hole/Parameter optimization/Validation分类
农业科技引用本文复制引用
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):830-839,10.基金项目
国家现代农业产业技术体系建设专项(GARS-04) （GARS-04）
公益性行业(农业)科研专项经费项目(20130311) （农业）
东北农业大学研究生科技创新基金(yjscx14020). （yjscx14020）
