Soil Particle Modeling and Parameter Calibration Based on Discrete Element Method
In order to establish a Discrete Element Method (DEM) model of soil particles, the soil in the laboratory soil bin was used as the research object. The soil texture was determined to be sandy loam by sieving, and the shape of the soil particles was analyzed by an image particle analyzer to establish...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/9/1421 |
| _version_ | 1827664494632894464 |
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| author | Dongxu Yan Jianqun Yu Yang Wang Long Zhou Ye Tian Na Zhang |
| author_facet | Dongxu Yan Jianqun Yu Yang Wang Long Zhou Ye Tian Na Zhang |
| author_sort | Dongxu Yan |
| collection | DOAJ |
| description | In order to establish a Discrete Element Method (DEM) model of soil particles, the soil in the laboratory soil bin was used as the research object. The soil texture was determined to be sandy loam by sieving, and the shape of the soil particles was analyzed by an image particle analyzer to establish a geometric model of the soil particles. The Edinburgh Elasto-Plastic Adhesion (EEPA) model was chosen as the contact model for the soil particle simulation analysis, and the accuracy of the model selection was determined by texture tests. The parameters in the contact model played a crucial role in the results of the simulation. Test methods were used to obtain parameters for the soil particles that were easy to measure. For parameters that could not be measured in the contact model, a direct shear test was used as the calibration test, and after screening the sensitive parameters using the PB test, the response surface method was used to calibrate the sensitive parameters. The accuracy of the calibration results was verified by comparing the simulation and test results of the direct shear test under different loadings. |
| first_indexed | 2024-03-10T01:01:48Z |
| format | Article |
| id | doaj.art-a8d1fdbab7734dbd8f88f1ef330ae1ee |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T01:01:48Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-a8d1fdbab7734dbd8f88f1ef330ae1ee2023-11-23T14:33:40ZengMDPI AGAgriculture2077-04722022-09-01129142110.3390/agriculture12091421Soil Particle Modeling and Parameter Calibration Based on Discrete Element MethodDongxu Yan0Jianqun Yu1Yang Wang2Long Zhou3Ye Tian4Na Zhang5Hua 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 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 order to establish a Discrete Element Method (DEM) model of soil particles, the soil in the laboratory soil bin was used as the research object. The soil texture was determined to be sandy loam by sieving, and the shape of the soil particles was analyzed by an image particle analyzer to establish a geometric model of the soil particles. The Edinburgh Elasto-Plastic Adhesion (EEPA) model was chosen as the contact model for the soil particle simulation analysis, and the accuracy of the model selection was determined by texture tests. The parameters in the contact model played a crucial role in the results of the simulation. Test methods were used to obtain parameters for the soil particles that were easy to measure. For parameters that could not be measured in the contact model, a direct shear test was used as the calibration test, and after screening the sensitive parameters using the PB test, the response surface method was used to calibrate the sensitive parameters. The accuracy of the calibration results was verified by comparing the simulation and test results of the direct shear test under different loadings.https://www.mdpi.com/2077-0472/12/9/1421DEMsoil particle modelEEPA modeldirect shear testparameter calibration |
| spellingShingle | Dongxu Yan Jianqun Yu Yang Wang Long Zhou Ye Tian Na Zhang Soil Particle Modeling and Parameter Calibration Based on Discrete Element Method Agriculture DEM soil particle model EEPA model direct shear test parameter calibration |
| title | Soil Particle Modeling and Parameter Calibration Based on Discrete Element Method |
| title_full | Soil Particle Modeling and Parameter Calibration Based on Discrete Element Method |
| title_fullStr | Soil Particle Modeling and Parameter Calibration Based on Discrete Element Method |
| title_full_unstemmed | Soil Particle Modeling and Parameter Calibration Based on Discrete Element Method |
| title_short | Soil Particle Modeling and Parameter Calibration Based on Discrete Element Method |
| title_sort | soil particle modeling and parameter calibration based on discrete element method |
| topic | DEM soil particle model EEPA model direct shear test parameter calibration |
| url | https://www.mdpi.com/2077-0472/12/9/1421 |
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