期刊论文

Simulation and Experiment on Hole-forming Performance of Hole-forming Mechanism for Rape Seedling Transplanting Based on EDEM

中文

中国农业科技导报

1008-0864

2019

21

7

70-81

10.13304/j.nykjdb.2018.0794

“十二五”国家科技支撑计划项目（2014BAD11B03）； 湖南省科技厅重点项目（2017NK2131）； 国家麻类产业技术体系项目（CARS-16-E21）； 中国农业科学院科技创新工程项目（CAAS-ASTIP-2017-IBFC06）资助；

本校为第一机构

为提高油菜移栽成穴装置作业性能,成型更优参数的栽植穴,采用模拟仿真和土槽试验相结合的方法研究成穴作业性能,优化成穴装置作业参数。运用EDEM软件仿真生成土壤与成穴装置,以栽植穴开口纵长和有效深度为响应值,结合响应面法Box-Behnken试验设计,模拟研究不同作业参数下的成穴效果,完成参数寻优。得出作业参数最优组合:穴刺直径35 mm、锥尖倒角64°、入土深度68 mm。土槽试验和仿真试验对比结果表明,开口纵长和有效深度平均相对误差分别为4.0%和5.68%,最优参数下土槽试验中栽植穴的有效深度47.2 mm、开口纵长84.4 mm。该研究优化了成穴装置作业参数,提高成穴作业效果,为今后的成穴机构与土壤相...

In order to improve the working performance of the hole-forming mechanism for rape seedling transplanting and to shape the planting holes with better parameters,the operation performance of the pure rolling hole forming mechanism and the optimization of relevant parameters were studied by combining the simulation and the soil slot test. The EDEM was used to simulate the soil test and generate the model of pore-forming mechanism. The vertical length and effective depth of the opening were taken as the response,and then the performance of pore-fo...