In view of the lack of seeds contact parameters that can be used as a reference for the
design of key mechanical components such as buckwheat planting, harvesting, and …

Aiming at the lack of accurate and reliable discrete element simulation parameters for the
design of buckwheat metering devices and seeders based on the discrete element …

Highlights The static friction coefficient and rolling friction coefficient of oat seeds were
calibrated by the discrete element method. Two representative oat varieties were selected …

In order to determine the optimal contact parameter combination of discrete element
simulation of coated corn seeds, the error rates of repose angle and stacking angle of …

为获得小麦粉离散元仿真精确的接触参数, 将不规则形状的小麦粉简化成软质球形颗粒,
利用颗粒接触缩放原理和量纲分析进行颗粒缩放, 将平均粒径0.212 mm 的小麦粉放大至1.2 …

研究大豆排种过程的离散元仿真参数设置. 对大豆种子的本征参数, 大豆种子与排种器的接触
参数进行标定; 测定大豆种子长, 宽, 高三轴尺寸, 自然休止角, 千粒重和密度的本征物理参数 …

The pneumatic metering device has the advantages of high qualified index, less mechanical
damage to seeds and good adaptability for high-speed operation. But traditional calculation …

Highlights•The ellipsoid modelling method is used to simulate wheat seeds.•Natural packing
and seed metering process of wheat seeds are analysed by DEM.•Ellipsoids are more …

In view of the fact that the existing cotton stem simulation models are simplified and have a
large discrepancy from the actual appearance and the contact parameters have not been …

由于EDEM (离散元法) 中建立的玉米种子颗粒模型与实际玉米种子在外形,
表面粗糙度等方面存在差异, 若直接将实际测量的物性参数引入EDEM 中进行仿真 …