土工格栅与砂土接触界面细观特性离散元研究

郑俊杰, 苗晨曦, 张军, 谢明星 - 华中科技大学学报: 自然科学版, 2013 - cqvip.com
为研究复杂的筋土相互作用机制, 采用内置" clump" 方法开发了可模拟砂土性状的椭球形颗粒,
建立了三维颗粒流数值模型, 在不同法向应力下进行了一系列拉拔数值试验 …

Discrete element method analysis of impact action between rice particles and impact-board

B Qiu, G Jiang, N Yang, X Guan… - Transactions of the …, 2012 - ingentaconnect.com
Contacts model of Hertz-Mindlin (no slip) based on discrete element method of soft-sphere
was used to simulate the impact action between the rice particles flow and the impact-board …

谷子摩擦特性试验及其影响因素分析.

杨作梅, 郭玉明, 崔清亮… - Transactions of the …, 2016 - search.ebscohost.com
为了给谷子机械化播种, 收获, 加工, 储运等作业装备设计及相关技术应用提供摩擦特性参数,
该文运用自制的小籽粒休止角测定装置, 摩擦系数仪, 直剪仪等试验设备, 测定了含水率分别为 …

Determination of Ellipsoidal Seed–Soil Interaction Parameters for DEM Simulation

T Xu, H Fu, J Yu, C Li, J Wang, R Zhang - Agriculture, 2024 - mdpi.com
During precision sowing, the contact process between the soil and seeds cannot be ignored.
The constitutive relationship of soil is relatively complex, with characteristics such as high …

Parameter calibration of discrete element model for corn straw-soil mixture in black soil areas

T Xinliang, C Xu, QI Jiangtao, GUO Hui, LI Mao… - Nongye Jixie Xuebao …, 2021 - nyjxxb.net
Due to the lack of accurate discrete element simulation model parameters in the design
optimization process of key agricultural machinery components under conservation tillage in …

[HTML][HTML] 非饱和紫色土三轴试验颗粒流宏细观参数关系研究

毛海涛, 黄海均, 严新军, 王晓菊 - 工程地质学报, 2021 - dzkx.org
为确定非饱和紫色土颗粒流宏细观力学参数间关系, 采用三维颗粒流软件(PFC 3D)
并结合控制变量法与莫尔-库仑破坏准则, 对不同含水率(8%, 10%, 12%, 14%, 16%, 18%) …

[引用][C] 包衣玉米种子离散元参数分析与标定

刘瑞, 李衍军, 刘忠军, 刘立晶, 吕海涛 - 农业机械学报, 2021

Calibration and testing of discrete element simulation parameters for sandy soils in potato growing areas

J Li, S Xie, F Liu, Y Guo, C Liu, Z Shang, X Zhao - Applied Sciences, 2022 - mdpi.com
To improve the accuracy of discrete element simulation in the process of separating potato–
soil mixtures, the contact parameters of sandy soil with 3, 6, 9, and 12% water content were …

Investigation on tillage resistance and soil disturbance in wet adhesive soil using discrete element method with three-layer soil-plough coupling model

X Li, Z Luo, Z Hao, E Zheng, H Yao, Y Zhu, X Wang - Powder Technology, 2024 - Elsevier
To reveal the interaction between plough and wet adhesive soil, it's essential to establish an
accurate coupling model of the soil-plough system. Traditional Edinburgh elasto-plastic …

[引用][C] 小麦籽粒振动筛分黏弹塑性接触模型构建及其参数标定

刘凡一, 张舰, 陈军 - 农业工程学报, 2018