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Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation

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  • Kai Chen

    (College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
    Institute of Modern Agricultural Equipment, Shandong University of Technology, Zibo 255049, China
    Shandong Key Laboratory of Intelligent Agricultural Technologies and Smart Agricultural Machinery Equipment for Field Crops, Zibo 255049, China)

  • Xiang Yin

    (College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
    Institute of Modern Agricultural Equipment, Shandong University of Technology, Zibo 255049, China
    Shandong Key Laboratory of Intelligent Agricultural Technologies and Smart Agricultural Machinery Equipment for Field Crops, Zibo 255049, China)

  • Wenpeng Ma

    (College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
    Institute of Modern Agricultural Equipment, Shandong University of Technology, Zibo 255049, China
    Shandong Key Laboratory of Intelligent Agricultural Technologies and Smart Agricultural Machinery Equipment for Field Crops, Zibo 255049, China)

  • Chengqian Jin

    (College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
    Institute of Modern Agricultural Equipment, Shandong University of Technology, Zibo 255049, China
    Shandong Key Laboratory of Intelligent Agricultural Technologies and Smart Agricultural Machinery Equipment for Field Crops, Zibo 255049, China
    Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China)

  • Yangyang Liao

    (College of Engineering, China Agricultural University, Beijing 100083, China)

Abstract

The discrete element method (DEM) has been widely applied as a vital auxiliary technique in the design and optimization processes of agricultural equipment, especially for simulating the behavior of granular materials. In this study, the focus is placed on accurately calibrating the simulation contact parameters necessary for the V7 potato minituber seed DEM simulation. Firstly, three mechanical tests are conducted, and through a combination of actual tests and simulation tests, the collision recovery coefficient between the seed and rubber material is determined to be 0.469, the static friction coefficient is 0.474, and the rolling friction coefficient is 0.0062. Subsequently, two repose angle tests are carried out by employing the box side plates lifting method and the cylinder lifting method. With the application of the response surface method and a search algorithm based on Matlab 2019, the optimal combination of seed-to-seed contact parameters, namely, the collision recovery coefficient, static friction coefficient, and rolling friction coefficient, is obtained, which are 0.500, 0.476, and 0.043, respectively. Finally, the calibration results are verified by a seed-falling device that combines collisions and accumulation, and it is shown that the relative error between the simulation result and the actual result in the verification test is small. Thus, the calibration results can provide assistance for the design and optimization of the potato minituber seed planter.

Suggested Citation

  • Kai Chen & Xiang Yin & Wenpeng Ma & Chengqian Jin & Yangyang Liao, 2024. "Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation," Agriculture, MDPI, vol. 14(12), pages 1-20, December.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:12:p:2298-:d:1544048
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    References listed on IDEAS

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    1. Dongdong Li & Rongyang Wang & Yingpeng Zhu & Jianneng Chen & Guofeng Zhang & Chuanyu Wu, 2024. "Calibration of Simulation Parameters for Fresh Tea Leaves Based on the Discrete Element Method," Agriculture, MDPI, vol. 14(1), pages 1-14, January.
    2. Wei Xing & Hua Zhang & Wei Sun & Hui Li & Xiaolong Liu & Hongling Li & Yangzhou Chen & Yonggang Lu, 2024. "Performance Study of a Chain–Spoon Seed Potato Discharger Based on DEM-MBD Coupling," Agriculture, MDPI, vol. 14(9), pages 1-23, September.
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    Cited by:

    1. Man Gu & Haiyang Shen & Weiwen Luo & Jie Ling & Bokai Wang & Fengwei Gu & Shumin Song & Liang Pan & Zhichao Hu, 2025. "Calibration of Parameters for Leaf-Stem-Cutting Model of Tuber Mustard ( Brassica juncea L.) Based on Discrete Element Method," Agriculture, MDPI, vol. 15(7), pages 1-19, April.

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