Results 11 to 20 of about 81,279 (338)

Calibration and test of contact parameters for alfalfa stalk at primary florescence based on discrete element method. [PDF]

PLoS ONE
In view of the lack of accurate models for discrete element simulation in the current research and development process of forage harvesting and crushing machinery, the contact parameters were calibrated based on Hertz-Mindlin (no slip) contact model by ...
Tao Chen, Shujuan Yi, Yifei Li, Guixiang Tao, Xin Mao   +4 more
doaj   +2 more sources

Angle of repose experiments with snow: role of grain shape and cohesion

Journal of Glaciology, 2020
Snow appears as a granular material in most engineering applications. We examined the role of grain shape and cohesion in angle of repose experiments, which are a common means for the characterization of granular materials. The role of shape was examined
Carolin Willibald, Henning Löwe, Thiemo Theile, Jürg Dual, Martin Schneebeli   +4 more
doaj   +2 more sources

Antlion sand interaction: A study of repose angle

Biogeotechnics
The antlions dig a conical simple pit in sand to catch ants. The funnel shape of the trap is deliberate with a critical angle of repose and is steep and shallow enough to trigger avalanches and cause struggling prey to fall into the funnel.
Ali Maroof
doaj   +2 more sources

Measurement and Calibration of DEM Parameters of Soybean Seed Particles

Agriculture, 2022
In discrete element method (DEM) simulations, accurate simulation parameters are very important. For ellipsoidal soybean seed particles, the rolling friction coefficient between seed particles (RFCP-P) and the rolling friction coefficients between seed ...
Dongxu Yan, Jianqun Yu, Yang Wang, Kai Sun, Long Zhou, Ye Tian, Na Zhang   +6 more
doaj   +1 more source

Calibration and Tests for the Discrete Element Simulation Parameters of Fallen Jujube Fruit

Agriculture, 2021
Discrete element method (DEM) simulation is an important method to analyze the interaction relationship between materials and equipment, and to develop machinery and/or equipment.
Gaokun Shi, Jingbin Li, Longpeng Ding, Zhiyuan Zhang, Huizhe Ding, Ning Li, Za Kan   +6 more
doaj   +1 more source

Simultaneous measurement of rice grain friction coefficient and angle of repose using rotating cylinders

Journal of Applied Botany and Food Quality, 2022
Several methods have been developed to measure the friction coefficient of grains and seeds as well as their angle of repose, independently. However, it seems that one single method capable of simultaneous measurement of these two important parameters ...
Jafar Massah, Javad Khazaei
doaj   +1 more source

A novel method for measurement of the angle of repose of granular seeds in discrete element methods

Journal of Agricultural Engineering, 2023
Discrete element numerical simulations can help researchers find potential problems in the design phase, shortening the development cycle and reducing costs.
Xin Du, Cailing Liu, Changqing Liu, Qixin Sun, Shufa Chen   +4 more
semanticscholar   +1 more source

Calibration of Contact Parameters for Particulate Materials in Residual Film Mixture after Sieving Based on EDEM

Agriculture, 2023
In this study, to obtain the contact parameters of particulate materials accurately and quickly in residual film mixture after sieving, the contact parameters of particulate materials were calibrated via a physical test and simulation test.
Pengfei Zhou, Yaping Li, Rongqing Liang, Bingcheng Zhang, Za Kan   +4 more
doaj   +1 more source

Flow properties of powdery or granular filling substances of dangerous goods packagings—Comparison of the measurement of the angle of repose and the determination of the Hausner ratio

Packaging technology & science, 2022
To ensure safety when transporting dangerous goods, it is important to specify the flow properties of the respective solid filling substance of the packagings.
Eva Schlick‐Hasper, J. Bethke, Nico Vogler, T. Goedecke   +3 more
semanticscholar   +1 more source

Effects of the application system on the physical and mechanical properties of mineral fertilizers [PDF]

Journal on Processing and Energy in Agriculture, 2018
Mineral fertilizers have a pivotal role in contemporary agricultural production, especially when seeking to exploit the full biological potential of crops.
Gavrilović Marija, Dimitrijević Aleksandra, Radojičin Milivoj, Mileusnić Zoran, Miodragović Rajko   +4 more
doaj   +1 more source