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Determination and analysis of basic physical and contact mechanics parameters of quinoa seeds by DEM

文献类型： 外文期刊

作者： Shi, Linrong 1 ; Zhao, Wuyun 1 ; Sun, Bugong 1 ; Sun, Wei 1 ; Zhou, Gang 2 ;

作者机构： 1.Gansu Agr Univ, Coll Mech & Elect Engn, Lanzhou 730070, Peoples R China

2.Gansu Acad Agr Sci, Inst Dryland Agr, Lanzhou 730070, Peoples R China

3.Gansu Agr Univ, Agr Mechanizat Engn Mech & Elect Engn Coll, Lanzhou 730070, Peoples R China

关键词： quinoa seeds; physical parameters; contact parameters; calibration; DEM

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING （ 影响因子：2.4； 五年影响因子：2.8 ）

ISSN： 1934-6344

年卷期： 2023 年 16 卷 5 期

页码：

收录情况： SCI

摘要： Quinoa is an ancient crop that is nutritious, balanced, and suitable for most people. However, it has not been known and sought by the public until modern times. In recent years, quinoa has been intensively known and widely grown in China. Quinoa mechanized production machines have also been developed. With the help of DEM, we design and optimize the quinoa combined seeder, improving seeding efficiency and quality. In this paper, the basic physical and contact mechanics parameters required for the Hertz-Mindlin (no slip) of quinoa seeds in EDEM software were determined. The coefficient of rolling friction of quinoa seeds was calibrated on DEM, and which of Long Quinoa 4 is 0.043, and that of Meng Quinoa 4 was 0.016. Meanwhile, we can find that the coefficient of rolling friction strengthens the shape to restrict rolling and weakens the shape to increase rolling. The above research provides simulation parameters for the design and optimization of quinoa seed seeding machinery.

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