DEM simulation of bionic subsoilers (tillage depth >40 cm) with drag reduction and lower soil disturbance characteristics
作者: Jiyu SunYueming WangYunhai MaJin TongZhijun Zhang
作者单位: 1Key Laboratory of Biomimetic Engineering (Ministry of Education), Jilin University, Changchun, 130022, PR China
2School of Mechanical Science and Engineering, Jilin University, Changchun, 130022, PR China
刊名: Advances in Engineering Software, 2018, Vol.119 , pp.30-37
来源数据库: Elsevier Journal
DOI: 10.1016/j.advengsoft.2018.02.001
关键词: BionicSubsoilerDEMEnergy consumptionSoil disturbance
原始语种摘要: Abstract(#br)Successive years of mechanical operations and conservation tillage in Northeast China have made subsoiling necessary, and the tillage depth can be no less than 40 cm. In this paper, a bionic design method was used to reduce subsoiler energy consumption and soil disturbance. The bionic structural elements, i.e., triangular prism (BTP) and partial circular column (BPCC), were inspired by the placoid scale rib structure of shark skin, which has low drag. These elements were then applied to the subsoiler to reduce energy consumption. Six types of bionic subsoilers were designed. Discrete element modeling (DEM) was used to simulate and analyze the interactions of the bionic subsoilers and an ordinary subsoiler (O-S) with the soil. The results showed that bionic subsoilers with a...
全文获取路径: Elsevier  (合作)
影响因子:1.22 (2012)

  • bionic 仿生
  • consumption 消耗
  • cm 化学铣切
  • elements 初步
  • disturbance 扰乱
  • subsoiler 心土铲
  • mechanical 机械的
  • DEM DEModulator
  • design 设计
  • shank 钎尾