农机化研究2016，Vol.38Issue(7)：239-244,262,7.
基于EDEM的单粒式谷物水分仪采样机构仿真研究
Simulation Research on Sampling Mechanism of Single Resistance Typed Grain On-line Moisture Teller Based on EDEM
摘要
Abstract
The discrete element model of sampling mechanism of single resistance typed grain on -line moisture teller was established, Hertz-mindlin and Hertz-mindlin with bonding, the two contact models in EDEM software, which were ap-plied to simulate the movement and roller compaction of rice pellet in sampling mechanism of moisture teller.The singly sampling property affected by three different kinds of transport roller pitches, crushing adequacy through different urface knurls of roller were studied respectively.The simulation results showed that, the longer screw pitch of the transfer made roller lower sampling efficiency and poorer transmission performance of single grain.The crushing stability and optimal adequacy were obtained when the surface knurls of roller was twill p 1.2.The simulation results were in accord with the platform comparison test results, which showed that the DEM method used to analyze grain ' s motion and crushing state in sampling device was feasible.关键词
水分检测/离散元模型/采样机构/仿真/谷物Key words
moisture detection/discrete element model/sampling mechanism/simulation/grain分类
农业科技引用本文复制引用
陈阳,胡志超,吴惠昌,王申莹,游兆延..基于EDEM的单粒式谷物水分仪采样机构仿真研究[J].农机化研究,2016,38(7):239-244,262,7.基金项目
公益性行业(农业)科研专项(201203037) （农业）
中国农业科学院农产品分级与贮藏装备创新团队项目(201203037-02) （201203037-02）
