Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations
Mechanical subsoiling is an effective practice to promote better water infiltration and crop root development. The bending subsoiling tool (BST) is a primary subsoiling tool and is used to remove soil compaction and restore soil productivity. In this study, a discrete element model was developed and...
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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/2077-0472/12/11/1830 |
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| author | Xuezhen Wang Hao Zhou Jiangtao Ji |
| author_facet | Xuezhen Wang Hao Zhou Jiangtao Ji |
| author_sort | Xuezhen Wang |
| collection | DOAJ |
| description | Mechanical subsoiling is an effective practice to promote better water infiltration and crop root development. The bending subsoiling tool (BST) is a primary subsoiling tool and is used to remove soil compaction and restore soil productivity. In this study, a discrete element model was developed and validated using laboratory soil bin tests to investigate the effects of the mounting angle of the BST (5°–33°) on soil disturbance behaviors and draft forces. The results show that the upheaval, failure and fragmentation of soil was achieved by successive shearing, uplifting, extrusion, tension and turning actions from the cutting share and cambered shank of the BST. Increasing soil depths gave smaller soil disturbance ranges in lateral, forward and upward directions. With an increase in mounting angle, both the draft force and soil rupture distance ratio initially decreased and then increased, whereas the soil loosening efficiency initially increased and then decreased. Overall, increasing the mounting angle of the BST from 5° to 33° gave a greater soil surface flatness that increased rapidly when the mounting angle increased from 26° to 33°. Appropriately increasing mounting angle of the BST from 5° to 26° could lift more moist soil from the deep seed and middle layers (5.0–15.5% increase) into the shallow seed layer (depth of <50 mm) without seriously affecting the mixing of the deep layer and other layers. Considering both the soil disturbance characteristics and draft forces, a mounting angle of 26° appeared to outperform the other angles. |
| first_indexed | 2024-03-09T19:22:25Z |
| format | Article |
| id | doaj.art-e01ecf0f51b542f38024bd44c868e6f4 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-09T19:22:25Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
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| series | Agriculture |
| spelling | doaj.art-e01ecf0f51b542f38024bd44c868e6f42023-11-24T03:17:40ZengMDPI AGAgriculture2077-04722022-11-011211183010.3390/agriculture12111830Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM SimulationsXuezhen Wang0Hao Zhou1Jiangtao Ji2College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471000, ChinaCollege of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471000, ChinaCollege of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471000, ChinaMechanical subsoiling is an effective practice to promote better water infiltration and crop root development. The bending subsoiling tool (BST) is a primary subsoiling tool and is used to remove soil compaction and restore soil productivity. In this study, a discrete element model was developed and validated using laboratory soil bin tests to investigate the effects of the mounting angle of the BST (5°–33°) on soil disturbance behaviors and draft forces. The results show that the upheaval, failure and fragmentation of soil was achieved by successive shearing, uplifting, extrusion, tension and turning actions from the cutting share and cambered shank of the BST. Increasing soil depths gave smaller soil disturbance ranges in lateral, forward and upward directions. With an increase in mounting angle, both the draft force and soil rupture distance ratio initially decreased and then increased, whereas the soil loosening efficiency initially increased and then decreased. Overall, increasing the mounting angle of the BST from 5° to 33° gave a greater soil surface flatness that increased rapidly when the mounting angle increased from 26° to 33°. Appropriately increasing mounting angle of the BST from 5° to 26° could lift more moist soil from the deep seed and middle layers (5.0–15.5% increase) into the shallow seed layer (depth of <50 mm) without seriously affecting the mixing of the deep layer and other layers. Considering both the soil disturbance characteristics and draft forces, a mounting angle of 26° appeared to outperform the other angles.https://www.mdpi.com/2077-0472/12/11/1830discrete element method (DEM)mounting anglesoil bin testsoil disturbance behaviorssubsoiling |
| spellingShingle | Xuezhen Wang Hao Zhou Jiangtao Ji Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations Agriculture discrete element method (DEM) mounting angle soil bin test soil disturbance behaviors subsoiling |
| title | Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations |
| title_full | Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations |
| title_fullStr | Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations |
| title_full_unstemmed | Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations |
| title_short | Effect of Mounting Angle on Bending Subsoiling Tool–Soil Interactions Using DEM Simulations |
| title_sort | effect of mounting angle on bending subsoiling tool soil interactions using dem simulations |
| topic | discrete element method (DEM) mounting angle soil bin test soil disturbance behaviors subsoiling |
| url | https://www.mdpi.com/2077-0472/12/11/1830 |
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