基于EDEM的番茄秸秆切割性能仿真及试验研究  

Simulation and experimental study on cutting performance of tomato cane straw based on EDEM

作　　者：郭茜 张西良[2] 徐云峰[3] 李萍萍[4] 陈成[2] 谢红卫[5] GUO Qian;ZHANG Xiliang;XU Yuneng;LI Pingping;CHEN Cheng;XIE Hongwei(Wuxi Lixin Branch of Jiangsu Union Technical Institute,Wuxi,Jiansu 214000,China;School of Mechanical Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China;Key Laboratory of Modem Agricultural Equipment and Technology,Ministry of Education and Jiangsu Province,Jiangsu University,Zhenjiang,Jiangsu 212013,China;College of Forest Resource and Environ- ment,Nanjing Forestry University,Nanjing,Jiangsu 210037,China;Logistics Service Group,Jiangsu University,Zhenjiang,Jiangsu 212013,China)

机构地区：[1]江苏联合职业技术学院无锡立信分院,江苏无锡214000 [2]江苏大学机械工程学院,江苏镇江212013 [3]江苏大学现代农业装备与技术省部共建教育部重点实验室/江苏省重点实验室,江苏镇江212013 [4]南京林业大学森林资源与环境学院,江苏南京210037 [5]江苏大学后勤服务集团公司,江苏镇江212013

出　　处：《排灌机械工程学报》2018年第10期1017-1022,共6页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家科技支撑计划项目(2014BAD08B04)

摘　　要：为了研究粉碎机中秸秆切割时刀片的结构参数对秸秆切削效率、切割性能等的影响,采用离散元方法及EDEM软件建立切割粉碎机中番茄秸秆切割仿真模型,对切割能耗、切割力、切割效果等进行数值模拟,并与试验结果进行对比,结果表明:与等滑切角平型刀片和普通刀片相比,等滑切角锯齿型刀片在切割过程中受到的合力较小,受力较均匀,波动较小,切割能耗最低,切割效率最高,切割时间最短,切割效果较好,优势明显.切割番茄秸秆时,40°等滑切角锯齿型刀片受到的切割力、消耗的能量、消耗的切割电能和切割时间都低于45°等滑切角锯齿型刀片,切割效率较高,切割效果更好.研究结果为番茄秸秆切割刀片及其结构参数的选择提供了理论依据.In order to study the effect of blade structure parameters on the cutting efficiency and cutting peffomlance of straw in the shredder, the discrete element method and EDEM software were used to set up the simulation model for cutting the tomato cane straw in the cutting machine. The numerical simu- lation of cutting energy consumption, cutting force and cutting effect was carried out, and the results were compared with the test results. The results show that compared with the equal slip angle flat blade and the ordinary- blade, the equal slip angle sawtooth blade has less force in the cutting process, the force is more uniform, the fluctuation is smaller, the cutting energy consumption is lower, the cutting efficiency is higher, the cutting time is shorter, and the cutting effect is better. So the advantage is ob- vious. When cutting the tomato cane straw, the cutting force, the energy consumed, the consumed cut- ting energy and the cutting time of the 40 equal slip angle sawtooth blade are lower than those of 45°same blade, and its cutting efficiency is higher and cutting effect is better. The results provide a theo- retical basis for the selection of tomato straw cutting blades and their structural parameters.

关 键 词：番茄秸秆 EDEM 切割性能 等滑切角锯齿形刀片 仿真 

分 类 号：S223.74[农业科学—农业机械化工程] TP391.9[农业科学—农业工程]