Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method
We explore the mechanism and law of reducing the resistance of soil cutting tools by achieving the self-excited vibration mode through the modification of the soil-engaging surface spectrum. Around the fundamental resonance point of the soil, and superimposing geometric waveforms of different spatia...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/13/10/1880 |
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| author | Zhijun Guo Yiqing Qiu Xianghai Yan Jiajia Wang Shengjie Si Fugui Guo Fu Zhang |
| author_facet | Zhijun Guo Yiqing Qiu Xianghai Yan Jiajia Wang Shengjie Si Fugui Guo Fu Zhang |
| author_sort | Zhijun Guo |
| collection | DOAJ |
| description | We explore the mechanism and law of reducing the resistance of soil cutting tools by achieving the self-excited vibration mode through the modification of the soil-engaging surface spectrum. Around the fundamental resonance point of the soil, and superimposing geometric waveforms of different spatial frequencies and amplitudes on the basis of the circular arc surface base directrix, 18 bulldozing plate models with different soil-engaging surface spectrum structures were designed and manufactured. By conducting a discrete element method (DEM) simulation of the working process of the bulldozing plate and comparing the working resistance of the soil-engaging components with the results of the soil bin test, the microscopic process of soil disturbance was further revealed from the perspective of simulation. The results indicate that the self-excited vibrating circular arc-surface bulldozing plate could effectively improve the resistance reduction effect during the operation around the resonance point. With this model, the average error of the horizontal working resistance was 7.52%, and the average error of the vertical working resistance was 21.71%. The analysis of the soil microscopic disturbance process by DEM simulation further verified the correctness of the macroscopic test results. The research work has an important reference value for both the vibration resistance reduction design of soil cutting tools and resistance reduction design of soil-engaging surfaces’ geometric structure modification. |
| first_indexed | 2024-03-10T21:31:03Z |
| format | Article |
| id | doaj.art-29c35d6c6b514fa5a9bfdf664bf09d4f |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T21:31:03Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-29c35d6c6b514fa5a9bfdf664bf09d4f2023-11-19T15:18:05ZengMDPI AGAgriculture2077-04722023-09-011310188010.3390/agriculture13101880Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element MethodZhijun Guo0Yiqing Qiu1Xianghai Yan2Jiajia Wang3Shengjie Si4Fugui Guo5Fu Zhang6College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaWe explore the mechanism and law of reducing the resistance of soil cutting tools by achieving the self-excited vibration mode through the modification of the soil-engaging surface spectrum. Around the fundamental resonance point of the soil, and superimposing geometric waveforms of different spatial frequencies and amplitudes on the basis of the circular arc surface base directrix, 18 bulldozing plate models with different soil-engaging surface spectrum structures were designed and manufactured. By conducting a discrete element method (DEM) simulation of the working process of the bulldozing plate and comparing the working resistance of the soil-engaging components with the results of the soil bin test, the microscopic process of soil disturbance was further revealed from the perspective of simulation. The results indicate that the self-excited vibrating circular arc-surface bulldozing plate could effectively improve the resistance reduction effect during the operation around the resonance point. With this model, the average error of the horizontal working resistance was 7.52%, and the average error of the vertical working resistance was 21.71%. The analysis of the soil microscopic disturbance process by DEM simulation further verified the correctness of the macroscopic test results. The research work has an important reference value for both the vibration resistance reduction design of soil cutting tools and resistance reduction design of soil-engaging surfaces’ geometric structure modification.https://www.mdpi.com/2077-0472/13/10/1880bulldozing plateresistance reduction designdiscrete element methodself-excited vibrationresonance effectsoil disturbance |
| spellingShingle | Zhijun Guo Yiqing Qiu Xianghai Yan Jiajia Wang Shengjie Si Fugui Guo Fu Zhang Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method Agriculture bulldozing plate resistance reduction design discrete element method self-excited vibration resonance effect soil disturbance |
| title | Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method |
| title_full | Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method |
| title_fullStr | Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method |
| title_full_unstemmed | Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method |
| title_short | Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method |
| title_sort | research on the resistance reduction law of self excited a resonant circular arc surface bulldozing plate based on the discrete element method |
| topic | bulldozing plate resistance reduction design discrete element method self-excited vibration resonance effect soil disturbance |
| url | https://www.mdpi.com/2077-0472/13/10/1880 |
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