Simulating the effect of rake angle on narrow opener performance with the discrete element method

Barr, James B.; Üçgül, Mustafa; Desbiolles, J.; Fielke, John M.

doi:10.1016/j.biosystemseng.2018.04.013

Cited by 84 publications

(27 citation statements)

References 25 publications

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“…The optimized parameters could be used to simulate the sample soil with discrete element between the clay soil and the contact soil parts. In this paper, according to the relevant references (Barr et al, 2018, Ucgul et al, 2014, Barr and Fielke, 2016, Asaf et al, 2007, Das, 2008, Budynas and Nisbett, 2012, some experiments have shown that these parameters were consistent with the characteristics of northeast black soils, as shown in Table 2.…”

Section: Dem Simulationmentioning

confidence: 59%

“…dimensions. (Barr et al, 2018). The optimized parameters could be used to simulate the sample soil with discrete element between the clay soil and the contact soil parts.…”

Section: Dem Simulationmentioning

confidence: 99%

“…According to the relevant references, the radius of 4-6 mm can meet the performance requirements of simulation calculation and make the simulation results without obvious distortion (Barr et al, 2018). In this paper, the soil particles were randomly generated in a soil bin with a radius of 4-6 mm.…”

Section: Dem Simulationmentioning

confidence: 99%

See 2 more Smart Citations

DEM and soil bin study on a biomimetic disc furrow opener

Wang

Xue

et al. 2019

Computers and Electronics in Agriculture

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Section: Dem Simulationmentioning

confidence: 59%

“…dimensions. (Barr et al, 2018). The optimized parameters could be used to simulate the sample soil with discrete element between the clay soil and the contact soil parts.…”

Section: Dem Simulationmentioning

confidence: 99%

See 1 more Smart Citation

DEM and soil bin study on a biomimetic disc furrow opener

Wang

Xue

et al. 2019

Computers and Electronics in Agriculture

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show abstract

“…It can be found through the comparison of curves in Figures 8a and 8b that, the digging resistance of the plane shovel was not very sensitive to the variation of penetration angles, which had a more significant influence on the digging resistance of the arc-shaped shovel. Therefore, in combination with the characteristics of forming effect and digging resistance of two types of shovels, the arc-shaped shovel is more suitable for double ridge forming of whole plastic film mulching, but the penetration angle still needs to be further optimized by test [20,21] .…”

Section: Comparison Of the Effect Of Two Types Of Shovelsmentioning

confidence: 99%

Mechanism analysis and performance improvement of mechanized ridge forming of whole plastic film mulched double ridges

Dai

Song

Zhao

et al. 2020

International Journal of Agricultural and Biological Engineering

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In order to achieve high-performance and mechanization construction standard of whole plastic mulched double ridge seedbed, and to meet its forming process and corresponding agronomic requirements of the mechanized double ridge seedbed, the key working parameters such as the speed of rotary blade group, the thickness of upturned sod and the power consumption of rotary blade group under different parameters were analyzed based on related working performance in ridge forming. Also, the test factors and their range of values were finally determined in this study. Discrete element method (DEM) simulation was applied in the numerical simulation of the mechanized ridge forming process of whole plastic mulched double ridges, and the ridge forming effect and digging resistance variation characteristics of different types of shovels were compared. Taking the forward speed of the combined machine, the penetration angle of the arc-shaped shovel and the depth of rotary tillage as independent variables, and the qualified rate of seedbed tillage as the response value, the mathematical model between the test factors and the qualified rate of the seedbed tillage was established, to explore the influence sequence of the factors on the qualified rate of seedbed tillage, and obtained the following optimal working parameters of the ridge forming device: the advancing velocity of the combined machine of 0.50 m/s, penetration angle of the arc-shaped shovel of 31°, rotary tillage depth of 140 mm, and average qualified rate 95.20% of seedbed tillage in corresponding simulation verification test. Field test showed that the average qualified rate of seedbed tillage in ridge forming device was 93.60%, which was close to that of the simulation results. The actual working condition of the sample machine was basically in line with the simulation process and could relatively precisely reflect the mechanized ridge forming mechanism of whole plastic double ridges. The results showed that the established DEM model and its parameter setting were relatively accurate and reasonable.

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“…Ucgul et al [9] studied soil movement when disturbed by plowing using soil bin tests and a discrete element method model. Barr et al [10] studied the process of soil disturbance and destruction using the discrete element method and a hysteretic spring contact model. Wang et al [11] simulated the movement of fertilizer particles in a fertilizer applicator using the discrete element method.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Movement Law and Influencing Factors of Hill-Drop Fertilizer Based on SPH Algorithm

Gao

Zhang

et al. 2020

Applied Sciences

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Studying the movement law and influencing factors of fertilizer in soil and controlling fertilizer distribution can improve the quality of fertilization, which is of great significance for promoting crop yield. In this paper, a 3D simulation model of the hill-drop fertilizer device and soil was established by the Smoothed Particle Hydrodynamics (SPH) algorithm, and the simulation model was modified using the Mohr–Coulomb criterion, and fertilizer movement in the soil under the disturbance of the cover was simulated and analyzed by the SPH algorithm. Orthogonal simulation experiments and the range analysis method were used to study the overall displacement and deformation of fertilizer, and the key factors affecting fertilizer movement were analyzed. After fertilization, the soil was layered with a soil sampler, and a digital image processing method was used to detect the fertilizer distribution in different soil depths; then, the fertilizer movement was inferred. The results of the field experiment showed that the trend of fertilizer movement was consistent with the results of the simulation experiment, which provides a reference for studying the movement and distribution of fertilizer in soil.

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Simulating the effect of rake angle on narrow opener performance with the discrete element method

Cited by 84 publications

References 25 publications

DEM and soil bin study on a biomimetic disc furrow opener

DEM and soil bin study on a biomimetic disc furrow opener

Mechanism analysis and performance improvement of mechanized ridge forming of whole plastic film mulched double ridges

Analysis of Movement Law and Influencing Factors of Hill-Drop Fertilizer Based on SPH Algorithm

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