Calibration and verification of DEM parameters of wet-sticky feed raw materials
Abstract In order to improve the accuracy of the parameters needed in the discrete element method (DEM) simulation process of wet-sticky feed raw materials, the JKR contact model in DEM was used to calibrate and verify the physical parameters of wet-sticky feed raw materials. Firstly, the parameters...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-36482-w |
| _version_ | 1827928692180910080 |
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| author | Fei Peng Limei Zhang Zhiqiang Li Jianming Chen |
| author_facet | Fei Peng Limei Zhang Zhiqiang Li Jianming Chen |
| author_sort | Fei Peng |
| collection | DOAJ |
| description | Abstract In order to improve the accuracy of the parameters needed in the discrete element method (DEM) simulation process of wet-sticky feed raw materials, the JKR contact model in DEM was used to calibrate and verify the physical parameters of wet-sticky feed raw materials. Firstly, the parameters that have a significant effect on the angle of repose were screened using a Plackett–Burman design, and the screened parameters were: MM rolling friction coefficient, MM static friction coefficient, and JKR surface energy. Then, the three screened parameters were selected as the influencing factors and the accumulation angle of repose was selected as evaluating indicator; thus, the performance optimization experiments were carried out with the quadratic orthogonal rotation design. Taking the experimentally measured angle of repose value of 54.25°as the target value, the significance parameters were optimized, and the optimal combination was obtained : MM rolling friction factor was 0.21, MM static friction factor was 0.51, and JKR surface energy was 0.65. Finally, the angle of repose and SPP tests were compared under the calibrated parameters. The results showed that the relative error of experimental and simulated tests in angle of repose was 0.57%, and the compression displacement and compression ratio of the experimental and simulated tests in SPP were 1.01% and 0.95%, respectively, which improved the reliability of the simulated results. The research findings provide a reference basis for simulation study and optimal design of related equipment for feed raw materials. |
| first_indexed | 2024-03-13T06:11:15Z |
| format | Article |
| id | doaj.art-3137411cc60c45c98a39932630de5c27 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-13T06:11:15Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-3137411cc60c45c98a39932630de5c272023-06-11T11:14:04ZengNature PortfolioScientific Reports2045-23222023-06-0113111110.1038/s41598-023-36482-wCalibration and verification of DEM parameters of wet-sticky feed raw materialsFei Peng0Limei Zhang1Zhiqiang Li2Jianming Chen3School of Artificial Intelligence, Beijing Technology and Business UniversitySchool of Artificial Intelligence, Beijing Technology and Business UniversitySchool of Artificial Intelligence, Beijing Technology and Business UniversityKey Laboratory of Healthy Freshwater Aquaculture, Zhejiang Institute of Freshwater FisheriesAbstract In order to improve the accuracy of the parameters needed in the discrete element method (DEM) simulation process of wet-sticky feed raw materials, the JKR contact model in DEM was used to calibrate and verify the physical parameters of wet-sticky feed raw materials. Firstly, the parameters that have a significant effect on the angle of repose were screened using a Plackett–Burman design, and the screened parameters were: MM rolling friction coefficient, MM static friction coefficient, and JKR surface energy. Then, the three screened parameters were selected as the influencing factors and the accumulation angle of repose was selected as evaluating indicator; thus, the performance optimization experiments were carried out with the quadratic orthogonal rotation design. Taking the experimentally measured angle of repose value of 54.25°as the target value, the significance parameters were optimized, and the optimal combination was obtained : MM rolling friction factor was 0.21, MM static friction factor was 0.51, and JKR surface energy was 0.65. Finally, the angle of repose and SPP tests were compared under the calibrated parameters. The results showed that the relative error of experimental and simulated tests in angle of repose was 0.57%, and the compression displacement and compression ratio of the experimental and simulated tests in SPP were 1.01% and 0.95%, respectively, which improved the reliability of the simulated results. The research findings provide a reference basis for simulation study and optimal design of related equipment for feed raw materials.https://doi.org/10.1038/s41598-023-36482-w |
| spellingShingle | Fei Peng Limei Zhang Zhiqiang Li Jianming Chen Calibration and verification of DEM parameters of wet-sticky feed raw materials Scientific Reports |
| title | Calibration and verification of DEM parameters of wet-sticky feed raw materials |
| title_full | Calibration and verification of DEM parameters of wet-sticky feed raw materials |
| title_fullStr | Calibration and verification of DEM parameters of wet-sticky feed raw materials |
| title_full_unstemmed | Calibration and verification of DEM parameters of wet-sticky feed raw materials |
| title_short | Calibration and verification of DEM parameters of wet-sticky feed raw materials |
| title_sort | calibration and verification of dem parameters of wet sticky feed raw materials |
| url | https://doi.org/10.1038/s41598-023-36482-w |
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