Tillage force and disturbance characteristics of different geometric-shaped subsoilers via DEM
作者机构：Key Laboratory of Bionic EngineeringMinistry of EducationJilin UniversityChangchun130022People’s Republic of China College of Biology and Agricultural EngineeringJilin UniversityChangchun130022People’s Republic of China College of Mechanical and Electrical EngineeringShihezi UniversityShihezi832000XinjiangPeople’s Republic of China
出 版 物：《Advances in Manufacturing》 (先进制造进展（英文版）)
年 卷 期：2020年第8卷第3期
页 面：392-404页
核心收录：
学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
基 金：This study was financially supported by the National Key R&D Program of China(Grant No.2017YFD0701103) the EU H2020 Program(FabSurfWAR No.644971) the 111 Project(Grant No.B16020)of China,the National Natural Science Foundation(Grant No.51805338) the China Scholarship Council,China(CSC)
主 题：Subsoiler Discrete element method(DEM) Tillage force Soil disturbance Soil compaction
摘 要：With the increased use of agricultural machinery in field operations,soil compaction has become increasingly severe,and the plough pan has become *** is an excellent way to address this ***,it is limited by high energy consumption,which is closely related to tillage *** investigate the effect of the geometric shape of shanks and tines on tillage force and soil disturbance in loam,a layered soil model in accordance with the actual conditions was established and five different subsoilers were simulated via discrete element *** results indicated that the shank impacted soil disturbance and tine impacted tillage *** draft force of curved shank and chisel tine was 8%less than that of the straight shank and sweep *** straight shank and sweep tine produced a larger furrow profile and a higher furrow *** subsoiler with curved shank and chisel tine(C-C)exhibited the lowest specific resistance(12.87,17.52,19.46 and 21.18 kN/m^2 in the 30,35,40 and 45 cm tillage depth,respectively)considering the draft force and soil disturbance ***,these results will facilitate in the selection of a suitable subsoiler and design of new subsoilers with lower energy consumption requirements for loam areas worldwide.
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