农业机械学报2025，Vol.56Issue(7)：1-19,19.DOI:10.6041/j.issn.1000-1298.2025.07.001
农业装备领域离散元法应用研究进展
Research Status and Progress of Discrete Element Method Applications in Agricultural Equipment
摘要
Abstract
Discrete element method(DEM)has emerged as an important approach for investigating the operational mechanisms of agricultural equipment and optimizing their operation and structure parameters.By establishing reliable numerical models,DEM enables the simulation of interactions between agricultural equipment and agricultural materials.In recent years,scholars worldwide have developed a series of agricultural material models using DEM,achieving significant progress in simulating equipment-material interactions across various agricultural processes.The DEM modeling technologies and key parameter calibration methods for typical agricultural materials were systematically reviewed,such as soil,seeds,crop straw,fertilizers,etc.It summarized application cases of DEM in critical agricultural operations of tillage,seeding,crop management,harvesting,and post-harvest processing and storage,and equipment design research based on DEM simulations.Current challenges were critically examined:limited model accuracy and versatility across diverse soil textures and crop varieties,computational inefficiency in large-scale field simulations,insufficient coupling application with other numerical methods such as DEM-CFD,DEM-MBD and DEM-FEM.Future research directions of the application of DEM in agricultural equipment research was proposed,including improve model accuracy and universality,enhance research on basic theory and intrinsic model,increase simulation efficiency and expand its use coupling with other methods.关键词
离散元法/农业装备/农业物料/参数标定/模拟仿真Key words
discrete element method/agricultural equipment/agricultural materials/parameter calibration/simulation分类
农业科技引用本文复制引用
赵宏波,王学振,郑智旗,李相辉,黄玉祥..农业装备领域离散元法应用研究进展[J].农业机械学报,2025,56(7):1-19,19.基金项目
国家自然科学基金项目(32372009、32101630)、陕西省重点研发计划一般项目(2023-YBNY-226)和中国博士后科学基金面上项目(2020M683578) （32372009、32101630）
