Calibration method of soil contact characteristic parameters based on DEM theory

W Xianliang, H Hong, W Qingjie, LI Hongwen… - Nongye Jixie Xuebao …, 2017 - nyjxxb.net
Discrete element modelling (DEM) is a numerical method for examining the dynamic
behaviour of granular media. Soil is a nonuniform, discontinuity, elastic-plastic complicated …

Calibration methods of sandy soil parameters in simulation of discrete element method

Z Rui, HAN Dianlei, JI Qiaoli, HE Yuan… - Nongye Jixie Xuebao …, 2017 - nyjxxb.net
When the interaction between agricultural machinery and soil is simulated, the accuracy of
the chosen particle parameters will directly have an effect on the simulation results. A …

Determination of restitution coefficient of potato tubers collision in harvest and analysis of its influence factors

B Feng, W Sun, L Shi, B Sun… - Transactions of the …, 2017 - ingentaconnect.com
The restitution coefficient is an important fundamental physical indicator of the agricultural
materials related to the research and development of farm machinery. In order to build a …

Simulation prediction method of repose angle for rice particle materials

F Jia, Y Han, Y Liu, Y Cao, YF Shi… - Transactions of the …, 2014 - ingentaconnect.com
Angle of repose is an important macroscopic feature in characterising the interactions within
an assembly of particles. In order to accurately predict the angle of repose of the particle …

花生种子颗粒离散元仿真参数标定与试验.

吴孟宸, 丛锦玲, 闫琴, 朱彤… - Transactions of the …, 2020 - search.ebscohost.com
由于花生排种装置在优化设计过程中缺乏准确的仿真模型参数, 从而造成仿真与理论计算结果
存在较大误差, 一定程度上制约了花生排种装置的发展. 该研究系统测定了花生种子的三轴尺寸 …

冰草种子物性参数测定与离散元仿真参数标定.

侯占峰, 戴念祖, 陈智, 仇义… - Transactions of the …, 2020 - search.ebscohost.com
为了提高冰草种子丸化包衣过程离散元仿真模拟试验所用参数的准确度, 该研究通过物理试验和
仿真试验相结合的方法对仿真参数进行标定. 首先, 采用物理试验的方法测定冰草种子的基本 …

Modeling method of corn ears based on particles agglomerate

Y Yu, H Zhou, H Fu, X Wu, J Yu - Transactions of the Chinese …, 2012 - ingentaconnect.com
It is necessary to establish the analysis models of corn ears to analyze corn threshing
process using DEM (the Discrete Element Method). According to the shapes and the …

机施有机肥散体颗粒离散元模型参数标定.

袁全春, 徐丽明, 邢洁洁, 段壮壮… - Transactions of the …, 2018 - search.ebscohost.com
针对有机肥离散元模型接触参数和接触模型参数难以通过查阅文献或试验直接获得的问题,
该文提出一种通过仿真试验建立回归模型并结合物理试验寻优的方法, 对有机肥离散元模型参数 …

海南热区砖红壤颗粒离散元仿真模型参数标定.

邢洁洁, 张锐, 吴鹏, 张喜瑞, 董学虎… - Transactions of the …, 2020 - search.ebscohost.com
为获取适用于海南热区砖红壤与触土部件相互作用的离散元仿真模型参数, 该文利用EDEM
仿真软件中Hertz-Mindlin with JKR 接触模型对海南地区砖红壤进行相关模型参数标定 …

[引用][C] 稻谷颗粒物料堆积角模拟预测方法

贾富国, 韩燕龙, 刘扬, 曹银平, 史宇菲, 姚丽娜, 王会 - 农业工程学报, 2014