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Discrete element modeling and experimental research on the shear properties of corn stubble

Authors :
Hailong Che
Xian Wang
Zhengzhong Li
Yinping Zhang
Hua Zhou
Source :
Engenharia Agrícola, Vol 44 (2024)
Publication Year :
2024
Publisher :
Sociedade Brasileira de Engenharia Agrícola, 2024.

Abstract

ABSTRACT Under the conservation tillage model, corn stubble with a complex structure has become the main obstacle for the operation of tillage tools. To better design relevant tillage tools as a reference, this study established a discrete element model of corn stubble. The intrinsic parameters and partial contact parameters of corn single root (CSR) were obtained through physical experiments, and the maximum shear force (Fmax) of CSR was tested. Fmax was used as the response value, Plackett-Burman test, steepest climbing test, and Box-Behnken test were used to determine the optimal parameters of the discrete element model. The results showed that the coefficient of friction of CSR-CSR, the coefficient of friction of CSR-steel, and the bonded disk radius all had significant effects on Fmax (P

Details

Language :
English, Spanish; Castilian, Portuguese
ISSN :
01006916 and 18094430
Volume :
44
Database :
Directory of Open Access Journals
Journal :
Engenharia Agrícola
Publication Type :
Academic Journal
Accession number :
edsdoj.4311562d52564e34ae070d89f1ae0b7c
Document Type :
article
Full Text :
https://doi.org/10.1590/1809-4430-eng.agric.v44e20240055/2024