Simulation and Analysis of the Working Process of Soil Covering and Compacting of Precision Seeding Units Based on the Coupling Model of DEM with MBD

Xu, Tianyue; Zhang, Ruxin; Wang, Yan; Jiang, Xinming; Feng, Weizhi; Wang, Jingli

doi:10.3390/pr10061103

Cited by 14 publications

(14 citation statements)

References 25 publications

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“…The angle of tension of the double-disc cover can be adjusted. When the cover tension angle was varied from 50° to 70°, the congestion of the disc was relieved as the disc tension angle increased, indicating that the larger the tension angle of the cover disc was, the less the soil was disturbed [14]. Based on the above study, the tension angle of the overburden disc is 60° during the simulation.…”

Section: Coverermentioning

confidence: 78%

“…The simulation and test results [14] of the change in the vertical and horizontal position of soybean seed particles before and after covering at different working speeds of the seeding monomer are shown in Figure 11. The bars in the figure are the error band resulting from the processing of the replicate test and simulation results and are expressed as the standard deviation.…”

Section: Analysis Of Covering Test Resultsmentioning

confidence: 99%

“…The simulation and test results [14] of the change in the vertical and horizontal position of soybean seed particles before and after compacting at different working speeds of the seeding monomer are shown in Figure 12. Analysis shows that with the increase in the working speed of the seeding monomer, the change in the position of soybean seed particles in both horizontal and vertical directions after compacting shows a trend of gradually becoming larger.…”

Section: Analysis Of the Results Of The Compacting Testmentioning

confidence: 99%

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Test and Simulation Analysis of the Working Process of Soybean Seeding Monomer

Yan

et al. 2022

Agriculture

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Soybean seeding monomers can realize the process of opening, seed throwing, covering, and compacting when they work. Due to the complexity of their working process, the relevant process cannot be analyzed by the discrete element method (DEM) alone. The DEM coupled with the multi-rigid body dynamics method (MBD) can solve the above problem, and the simulation analysis of the above process is realized by coupling the EDEM software with RecurDyn software. The changes in the position of soybean seed particles before and after covering and compacting are analyzed. The results show that when the working speed of the seeding monomer increases, the distance along the vertical direction of the soybean seed particles after covering gradually increases, and the distance along the horizontal direction gradually decreases. The effect of different working speeds of seeding monomer on the opening situation and the variation in seed particle positions is studied. The results show that the ditch angle gradually decreases as the working speed of the seeding monomer increases. The distribution of seed particle spacing is also analyzed. The above tests are simulated, and the results show a high agreement between the simulation and test results, proving the accuracy of the coupling method. This paper applies the coupling method for the first time to the simulation of the seeding monomer. This method can be applied not only to the analysis of the sowing process of soybean seeding monomers, but also be applied to the analysis of other machinery working processes, such as the tillage process, the sieving process, the planting and harvesting processes of crops, etc. It also deepens the application of the discrete element method in the field of agriculture.

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Section: Coverermentioning

confidence: 78%

Section: Analysis Of Covering Test Resultsmentioning

confidence: 99%

Section: Analysis Of the Results Of The Compacting Testmentioning

confidence: 99%

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Test and Simulation Analysis of the Working Process of Soybean Seeding Monomer

Yan

et al. 2022

Agriculture

Self Cite

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“…The optimization of critical components of a single sowing mechanism makes it difficult to meet the requirements of sowing quality. There is still a certain distance between the accuracy control in the actual sowing process, and the theoretical one, and one important reason is the particle spacing error caused by the bouncing and rolling of the seeds in the ditch after leaving the seeder and falling into the seed ditch [5,6].…”

Section: Introductionmentioning

confidence: 99%

Establishment and Parameter Calibration of a Simulation Model of Coated Cotton Seeds and Soil

Zeng,

Diao,

Cui

et al. 2024

Processes

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Precision seeding technology is an important component of agricultural mechanization production. The precise regulation of seed movement behavior is the core of precision sowing technology and the key to improving the quality of single seed precision sowing. To accurately obtain the interaction law between seeds and soil after touching the soil, it is necessary to conduct comprehensive physical experiments to determine the simulation parameters of the seed and soil. This article takes coated cotton seeds as the research object, and the basic physical parameters of coated cotton seeds are measured through biological experiments. Based on the Hertz–Mindlin with bonding V2 contact model, a simulation model of compression between coated cotton seeds and soil is established. Using peak compression force as the response value, a combination of physical experiments and simulation simulations was used to calibrate the simulation parameters of the simulation mode of coated cotton seeds and soil. Through PB testing, it was found that four factors have a significant impact on the peak compressive force, and the parameter range was obtained. The Poisson’s ratio of coated cotton seeds was 0.14–0.26. The static friction coefficient between coated cotton seeds and steel plate was 0.38–0.58. The static friction coefficient between soil and soil was 0.3–1.2. The rolling friction coefficient between soil and soil was 0.1–0.6. Through response surface experiments with four factors and three levels, regression models were established between various factors and response values, and the optimal combination of simulation parameters was determined: the Poisson’s ratio of coated cotton seeds was 0.21; the static friction coefficient between coated cotton seed and steel plate was 0.47; the static friction coefficient between soil and soil was 0.34; and the rolling friction coefficient between soil and soil was 0.59. Based on the optimal parameter combination, the simulation of compression between coated cotton seeds and soil was continued, and the variation law of soil particle bonding bonds at different positions of coated cotton seeds during the compression process was obtained. This study provides a basis for exploring the interaction mechanism between the trencher seed soil of precision seeders and optimizing the design of critical components of cotton precision seeders.

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“…Orthogonal experiments were used to study the effect of the structure of the shroud and the blanking tube on the wear of the transfer pipe, the outlet speed of the material, and the impact strength of the material conveyor belt. Researchers at home and abroad have carried out related work in the field of DEM material flow simulation [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

DEM Based Wear Analysis and Optimization of the Chute System in Transfer Stations

Zhang,

Huang,

Chen

et al. 2023

HSET

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With the increasing application of bulk cargo transfer station in ports, it is one of key problems to effectively solve the wear problem of the chute system and to reduce the maintenance cost of port equipment and improve the production efficiency. Taking the actual wear of the chute as an example, this paper analyzed the causes of the wear of the chute system used in the bulk cargo transfer station based on the discrete element method (DEM), and the problems of the original chute design was revealed. On this basis, the optimization scheme of chute was put forward from two aspects of reducing the wear degree and facilitating the replacement of lining plate.

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Simulation and Analysis of the Working Process of Soil Covering and Compacting of Precision Seeding Units Based on the Coupling Model of DEM with MBD

Cited by 14 publications

References 25 publications

Test and Simulation Analysis of the Working Process of Soybean Seeding Monomer

Test and Simulation Analysis of the Working Process of Soybean Seeding Monomer

Establishment and Parameter Calibration of a Simulation Model of Coated Cotton Seeds and Soil

DEM Based Wear Analysis and Optimization of the Chute System in Transfer Stations

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