Calibration and test of the contact parameters for chopped cotton stems based on discrete element method

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 calibrated. In this study, the simulation model and numerical simulation were established using the discrete element sof...

Full description

Saved in:
Bibliographic Details
Published in:International journal of agricultural and biological engineering 2022-09, Vol.15 (5), p.1-8
Main Authors: Liang, Rongqing, Chen, Xuegeng, Zhang, Bingcheng, Wang, Xinzhong, Kan, Za, Meng, Hewei
Format: Article
Language:English
Subjects:
Accuracy
Angle of repose
Calibration
Coefficient of friction
Construction
Contact angle
Cotton
Data simulation
Deformation
Discrete element method
Friction
Mathematical models
Moisture content
Parameters
Physical tests
Rolling resistance
Simulation
Simulation models
Software
Static friction
Stems
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 calibrated. In this study, the simulation model and numerical simulation were established using the discrete element software EDEM. Then a second-order response model between contact parameters and repose angle had been constructed. The test result showed that the static friction coefficient, rolling friction coefficient, and coefficient of restitution between cotton stems were crucial factors affecting the repose angle. The determination coefficient corrected determination coefficient and p-value of the second-order response model were R2=0.959, R2adj=0.921, and p
ISSN:1934-6344
1934-6352
DOI:10.25165/j.ijabe.20221505.6546