Measurement and Calibration of DEM Parameters of Soybean Seed Particles
In discrete element method (DEM) simulations, accurate simulation parameters are very important. For ellipsoidal soybean seed particles, the rolling friction coefficient between seed particles (RFCP-P) and the rolling friction coefficients between seed particle and boundary (RFCP-B) are difficult to...
| Main Authors: | , , , , , , |
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/11/1825 |
| _version_ | 1797469516254412800 |
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| author | Dongxu Yan Jianqun Yu Yang Wang Kai Sun Long Zhou Ye Tian Na Zhang |
| author_facet | Dongxu Yan Jianqun Yu Yang Wang Kai Sun Long Zhou Ye Tian Na Zhang |
| author_sort | Dongxu Yan |
| collection | DOAJ |
| description | In discrete element method (DEM) simulations, accurate simulation parameters are very important. For ellipsoidal soybean seed particles, the rolling friction coefficient between seed particles (RFCP-P) and the rolling friction coefficients between seed particle and boundary (RFCP-B) are difficult to measure experimentally and therefore need to be calibrated. In this paper, soybean seed particles of three varieties with different sphericities were taken as the research objects. Through the simulation analysis of repose angle and self-flow screening, it was shown that the above two parameters needed to be accurately calibrated. In addition, the sensitivity of the RFCP-P and RFCP-B to the angle of repose was analyzed by simulating the repose angle test. The results showed that the RFCP-P had a significant effect on the test results of the repose angle, and the RFCP-B had little effect on the test results of the repose angle. Therefore, the RFCP-P was calibrated using a single-factor test of repose angle, and the RFCP-B was calibrated using the repose angle test with soybean particles mixed with organic glass spheres. The accuracy of the calibration parameters was verified by rotating cylinder test and self-flow screening test. |
| first_indexed | 2024-03-09T19:22:30Z |
| format | Article |
| id | doaj.art-f4010d5c8461413fbcb1c23aa4316339 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-09T19:22:30Z |
| publishDate | 2022-11-01 |
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| series | Agriculture |
| spelling | doaj.art-f4010d5c8461413fbcb1c23aa43163392023-11-24T03:17:35ZengMDPI AGAgriculture2077-04722022-11-011211182510.3390/agriculture12111825Measurement and Calibration of DEM Parameters of Soybean Seed ParticlesDongxu Yan0Jianqun Yu1Yang Wang2Kai Sun3Long Zhou4Ye Tian5Na Zhang6Hua Lookeng Honors College, Changzhou University, Changzhou 213164, ChinaSchool of Biological and Agricultural Engineering, Jilin University, Changchun 130022, ChinaSchool of Biological and Agricultural Engineering, Jilin University, Changchun 130022, ChinaSchool of Biological and Agricultural Engineering, Jilin University, Changchun 130022, ChinaSchool of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255022, ChinaCenter of Industry and Technology, Hebei University of Technology Petroleum, Chengde 067000, ChinaSchool of Biological and Agricultural Engineering, Jilin University, Changchun 130022, ChinaIn discrete element method (DEM) simulations, accurate simulation parameters are very important. For ellipsoidal soybean seed particles, the rolling friction coefficient between seed particles (RFCP-P) and the rolling friction coefficients between seed particle and boundary (RFCP-B) are difficult to measure experimentally and therefore need to be calibrated. In this paper, soybean seed particles of three varieties with different sphericities were taken as the research objects. Through the simulation analysis of repose angle and self-flow screening, it was shown that the above two parameters needed to be accurately calibrated. In addition, the sensitivity of the RFCP-P and RFCP-B to the angle of repose was analyzed by simulating the repose angle test. The results showed that the RFCP-P had a significant effect on the test results of the repose angle, and the RFCP-B had little effect on the test results of the repose angle. Therefore, the RFCP-P was calibrated using a single-factor test of repose angle, and the RFCP-B was calibrated using the repose angle test with soybean particles mixed with organic glass spheres. The accuracy of the calibration parameters was verified by rotating cylinder test and self-flow screening test.https://www.mdpi.com/2077-0472/12/11/1825discrete element methodsoybean seedellipsoidal shapeparameter calibrationrolling friction coefficient |
| spellingShingle | Dongxu Yan Jianqun Yu Yang Wang Kai Sun Long Zhou Ye Tian Na Zhang Measurement and Calibration of DEM Parameters of Soybean Seed Particles Agriculture discrete element method soybean seed ellipsoidal shape parameter calibration rolling friction coefficient |
| title | Measurement and Calibration of DEM Parameters of Soybean Seed Particles |
| title_full | Measurement and Calibration of DEM Parameters of Soybean Seed Particles |
| title_fullStr | Measurement and Calibration of DEM Parameters of Soybean Seed Particles |
| title_full_unstemmed | Measurement and Calibration of DEM Parameters of Soybean Seed Particles |
| title_short | Measurement and Calibration of DEM Parameters of Soybean Seed Particles |
| title_sort | measurement and calibration of dem parameters of soybean seed particles |
| topic | discrete element method soybean seed ellipsoidal shape parameter calibration rolling friction coefficient |
| url | https://www.mdpi.com/2077-0472/12/11/1825 |
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