基于EDEM的双翼式深松铲设计与仿真试验  

Design and simulation experiment on double-wings deep-shovel based on EDEM

作　　者：朴顺男 张青松[1] 刘宏博[1] 周洋[1] 廖庆喜[1] 

机构地区：[1]华中农业大学工学院,湖北武汉430070 [2]金日成综合大学平壤农业大学农机械系,朝鲜平壤999093

出　　处：《广东农业科学》2014年第16期182-186,共5页Guangdong Agricultural Sciences

基　　金：国家"十二五"科技支撑计划项目(20013BAD08B02);国家油菜产业技术体系专项(CARS-13);中央高校基本科研业务费项目(2014PY033);武汉市高新技术产业科技创新团队项目(2014070504020240)

摘　　要：设计了一种由铲柄、铲翼及铲尖组成的双翼式深松铲,建立了基于EDEM离散元仿真模型,分析确定了双翼式深松铲主要工作参数及结构参数并进行仿真试验。结果表明,在试验范围内,双翼式深松铲耕作阻力F随铲翼翻土角γ及起土角α增大而增小,随耕作速度v先减小后增大。当双翼式深松铲铲翼翻土角γ取30°、起土角α取30°、耕作速度v取0.75 m/s时,双翼式深松铲耕作阻力F最小。土槽试验结果表明,双翼式深松铲作业时,土壤沿铲翼后部自动向内及后方迁移,土壤原地翻转,不堆积在侧边地表且两侧扰动小。Double-wings deep-shovel was designed and it contained three parts, including shove shaft, shove wing and shovel tip. The EDEM model of soil-plow simulation was established. The experiment with tillage resistances as larger and several operating parameters and structure parameters as factors was made. The simulation results showed thai during the range of the experiment, tillage resistances decreased when tiller angle and starting angle increased while it decreased and then increased when operating speed increased. The value of tillage resistance was the least when the value of tiller angle, starting angle and operating speed were 30°, 30°, 0.75 m/s, respectively. The soil bin results showed that when tire shovel was being operated, the soil moved inner and back along the wing, turned still, which had little influence on sides.

关 键 词：双翼式深松铲 EDEM 耕作阻力 翻土角 起土角 耕作速度 

分 类 号：S222.29[农业科学—农业机械化工程]