农业工程学报2011，Vol.27Issue(11)：32-36,5.DOI:10.3969/j.issn.1002-6819.2011.11.006
内充式排种器工作过程和性能的离散元法仿真分析
Simulation analysis of working process and performance of inside-filling seed metering device by discrete element method
摘要
Abstract
In this paper, an inside-filling seed metering device and the wheat seed were researched by using the discrete element method. The two-dimensional discrete element method analytical model of a seed metering device was established based on its CAD model, and the two-dimensional particle model of a wheat seed was built using the method of combination of different circular arcs. The behaviors of wheat seeds and the performance of the seed metering device were simulated and analyzed using self-developed two-dimensional discrete element method software. By comparing the simulation results with the experimental results, good agreements were obtained. The results showed the feasibility of using discrete element method to analyze the performance of an inside-filling seed metering device, which can be a new method for the research and optimal design of inside-filling seed metering device.关键词
农业机械/仿真/优化/内充式排种器/小麦种子/离散元法Key words
agricultural machinery/computer simulation/optimization/inside-filling seed metering device/wheat seed/discrete element method分类
农业科技引用本文复制引用
李政权,于建群,张尉林,付宏..内充式排种器工作过程和性能的离散元法仿真分析[J].农业工程学报,2011,27(11):32-36,5.基金项目
“863”国家高技术研究发展计划资助项目(2006AA04Z125) （2006AA04Z125）
国家自然科学基金资助项目(60973090、11172112) （60973090、11172112）
南方农业机械与装备关键技术省部共建教育部重点实验室开放课题资助项目 （）
吉林省科技发展计划资助项目(20100313) （20100313）
