ESTABLISHMENT AND CALIBRATION OF DISCRETE ELEMENT MODEL FOR COATED WHEAT SEED BASED ON STATIC AND DYNAMIC VERIFICATION TEST

被引：0

作者：

Zhang, Xuejun ^{[1
,2
]}

Guo, Ren ^{[1
]}

Shi, Zenglu ^{[1
,2
]}

Yan, Jinshan ^{[1
,2
]}

Bai, Shenghe ^{[3
]}

Yang, Longfei ^{[1
]}

Yu, Yongliang ^{[4
]}

Wang, Duijin ^{[4
]}

机构：

[1] Xinjiang Agr Univ, Coll Mech & Elect Engn, Urumqi, Peoples R China

[2] Key Lab Intelligent Agr Equipment Xinjiang, Urumqi, Peoples R China

[3] Chinese Acad Agr Mechanizat Sci Grp Co Ltd, Natl Key Lab Agr Equipment Technol, Beijing, Peoples R China

[4] Xinjiang Tiancheng Agr Machinery Mfg Co Ltd, Tiemenguan, Peoples R China

来源：

INMATEH-AGRICULTURAL ENGINEERING | 2024年 / 74卷 / 03期

关键词：

coated wheat seed; repose angle; simulation; parameter calibration; seed metering;

D O I：

10.35633/inmateh-74-32

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study calibrated discrete element parameters for coated wheat seeds through static and dynamic validation tests. Using physical experiments, key parameters were measured, and a discrete element model was created. Optimal parameters were identified via the Plackett-Burman test, steepest ascent experiment, and Box-Behnken design. Validation tests showed that the relative error between the simulated and actual angle of repose was 1.31%, and the relative error in seeding uniformity and seed displacement uniformity was less than 5%. These findings provide theoretical support for optimizing seed dispenser structures in precision wheat sowing.

引用

页码：370 / 379

页数：10

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