Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation
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 conta...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/14/12/2298 |
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| author | Kai Chen Xiang Yin Wenpeng Ma Chengqian Jin Yangyang Liao |
| author_facet | Kai Chen Xiang Yin Wenpeng Ma Chengqian Jin Yangyang Liao |
| author_sort | Kai Chen |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-07bfe20f41f04a1eb656a19d8aed759a |
| institution | DOAJ |
| issn | 2077-0472 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj-art-07bfe20f41f04a1eb656a19d8aed759a2025-08-20T02:57:05ZengMDPI AGAgriculture2077-04722024-12-011412229810.3390/agriculture14122298Contact Parameter Calibration for Discrete Element Potato Minituber Seed SimulationKai Chen0Xiang Yin1Wenpeng Ma2Chengqian Jin3Yangyang Liao4College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, ChinaCollege of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, ChinaCollege of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, ChinaCollege of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaThe 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.https://www.mdpi.com/2077-0472/14/12/2298potato minituberdiscrete elementEDEMrepose angleparameter calibration |
| spellingShingle | Kai Chen Xiang Yin Wenpeng Ma Chengqian Jin Yangyang Liao Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation Agriculture potato minituber discrete element EDEM repose angle parameter calibration |
| title | Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation |
| title_full | Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation |
| title_fullStr | Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation |
| title_full_unstemmed | Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation |
| title_short | Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation |
| title_sort | contact parameter calibration for discrete element potato minituber seed simulation |
| topic | potato minituber discrete element EDEM repose angle parameter calibration |
| url | https://www.mdpi.com/2077-0472/14/12/2298 |
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