Parametric analysis and numerical optimisation of Jerusalem artichoke vibrating digging shovel using discrete element method

Awuah, Emmanuel; Zhou, Jun; Liang, Zian; Aikins, Kojo Atta; Gbenontin, Bertrand Vigninou; Mecha, Peter; Makange, Nelson Richard

doi:10.1016/j.still.2022.105344

Cited by 30 publications

(14 citation statements)

References 39 publications

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“…Vibration increases the soil fragmentation effect and will accelerate the flow of soil particles (Awuah et al, 2022). When seedlings enter the soil, soil flow increases, and the planting depth of seedlings becomes shorter.…”

Section: Discrete Element Simulation Resultsmentioning

confidence: 99%

“…However, scholars have not paid attention to the disturbance of transplanting machine on sandy loam soil. Part of the soil flows back into the hole, creating an uneven bottom and seriously affecting seedling growth and planting efficiency (Frasconi et al, 2019;Mamun et al, 2020;Awuah et al, 2022). In order to investigate the planting mechanism and optimize the structure of the planters, it is necessary not only to analyze the morphology of the holes formed by the planters but also to investigate the dynamic disturbance of the soil particles by the planters (Bhambota et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Transplanter Vibration on Particle Movement Velocity of Sandy Loam Soil by Using Dem

SU,

LI,

ZENG

et al. 2023

INMATEH

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The sandy loam soil has complex movement characteristics during hole formation by hanging cup transplanters. In order to better investigate this point, the paper aims to investigate the disturbance pattern of transplanter vibration on sandy loam soil and the movement characteristics of soil particles by the discrete element method. The vibration characteristics of the transplanter operating on sandy loam soil were tested and analyzed, and the motion law of vibration parameters on sandy loam soil was investigated with the help of the discrete element method and soil bin test. The results showed that the vibration acceleration of the transplanter increased with the forward speed, the primary vibration frequency range was from 0 to 12 Hz, and the vibration amplitude increased linearly in the field of 1.21 to 9.19 mm. The Central Composite test resulted in the regression equations of vibration amplitude and vibration frequency on the average movement velocity of the particles. The response surface analysis showed that the effect of vibration amplitude on the average movement velocity of particles was greater than the effect of vibration frequency on the average movement velocity of particles. At the same time, the average movement velocity of the particles tends to increase significantly under the interaction of the two. This study provides data to support the design of planters for sandy loam soils, which is beneficial to promote seedling transplanting technology further.

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Section: Discrete Element Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Transplanter Vibration on Particle Movement Velocity of Sandy Loam Soil by Using Dem

SU,

LI,

ZENG

et al. 2023

INMATEH

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“…In order to replicate the model’s wear, the Archard wear model was incorporated into the contact setup. A wear factor of 0.8 × 10 −12 m 2 N −1 for NM360 wear-resistant steel was utilized, as this study mainly focused on the impact of the rib unit on wear [ 28 , 35 ].…”

Section: Methodsmentioning

confidence: 99%

“…Zhang, et al [ 27 ] simulated the wear behavior of several bionic surfaces using the EDEM Archard wear model and found that the results matched experimental outcomes. Awuah, et al [ 28 ] assessed the geometric and vibrational properties of various tines using DEM, demonstrating its ability to accurately predict component wear and tillage resistance. Tong, Mohammad, Zhang, Ma, Rong, Chen, and Menon [ 1 ] investigated how changes in Farrer scallop morphology affect wear patterns.…”

Section: Introductionmentioning

confidence: 99%

Parameter Optimization and DEM Simulation of Bionic Sweep with Lower Abrasive Wear Characteristics

et al. 2023

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High wear rates during the tillage process often result in significant financial losses and wasted farming seasons. In this paper, a bionic design was used to reduce tillage wear. Inspired by wear-resistant animals with ribbed structures, the bionic ribbed sweep (BRS) was designed by combining a ribbed unit with a conventional sweep (CS). BRSs with different parameters (width φ, height h, angle θ, and interval λ) were simulated and optimized using the DEM and RSM methods at a working depth of 60 mm to evaluate the magnitude and trends of three responses: tillage resistance (TR), number of contacts between the sweep and soil particles (CNSP), and Archard wear value (AW). The results showed that a protective layer could be created on the surface of the sweep with a ribbed structure to reduce abrasive wear. Analysis of variance proved that factors φ, θ, and λ had significant effects on AW, CNSP, and TR, while factor h was insignificant. An optimal solution was obtained using the desirability method, including 8.88 mm φ, 1.05 mm h, 3.01 mm λ, and 34.46° θ. Wear tests and simulations showed that wear loss could be effectively reduced at different speeds by the optimized BRS. It was found to be feasible to create a protective layer to reduce partial wear by optimizing the parameters of the ribbed unit.

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“…When the travel speed of the harvester increased, the quantity of harvested shellfish gradually decreased, while the shellfish crushing rate remained constant at 0. The front end of the vibrating screen moved along an inclined sinusoidal vibration curve (Awuah et al, 2022), and as the harvesting equipment traveled faster, the sinusoidal curve cycle displacement became longer and the wave crests grew farther apart from one another. This resulted in shellfish leakage and reduced the quantity of shellfish harvested.…”

Section: Effect Of Harvester Travel Speedmentioning

confidence: 99%

Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method

Zhang

et al. 2023

Front. Mar. Sci.

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IntroductionTo enhance the application of mechanized harvesting and supplement research on harvesting theory in mudflat-buried shellfish harvesting in China, a brush-screen cooperative mudflat-buried shellfish vibration harvester was designed.MethodsThe harvester is primarily composed of a crank rocker double-layer vibrating screen, two stage rolling brush, and a conveyor chain. White clams (Mactra veneriformis) cultured in mudflats were used as the research objects in this paper, and the mechanics and motion states of the shellfish on the vibrating screen were analyzed. The shellfish harvesting simulation response surface experiments based on the discrete element method (DEM) were conducted to analyze the influence of the main operating parameters on the quantity of shellfish harvested.ResultsThe results revealed that the number of shellfish harvested was significantly influenced (p< 0.01) by vibrating screen amplitude, first-stage spiral rolling stainless steel brush rotation rate, and harvester travel speed. The optimal combination of key parameters was 1.4 mm, 40 rpm, and 10 m/min, respectively. With these values, the projected shellfish crushing rate was 2.82% and the shellfish harvesting efficiency was 125 pieces/m2. The equipment was then manufactured and the shellfish harvesting verification test was performed under the same operating parameters as the simulation. Test results indicated that the harvesting efficiency of the equipment was 114 pieces/m2 and the shellfish crushing rate was 6.97%.DiscussionThe shellfish harvesting work could be completed by the equipment effectively and with low loss. The results of this study provide a theoretical reference for a novel mechanized method of harvesting mudflat-buried shellfish.

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Parametric analysis and numerical optimisation of Jerusalem artichoke vibrating digging shovel using discrete element method

Cited by 30 publications

References 39 publications

Effect of Transplanter Vibration on Particle Movement Velocity of Sandy Loam Soil by Using Dem

Effect of Transplanter Vibration on Particle Movement Velocity of Sandy Loam Soil by Using Dem

Parameter Optimization and DEM Simulation of Bionic Sweep with Lower Abrasive Wear Characteristics

Design and testing of a mechanized brush-screen cooperative vibration harvester for mudflat-buried shellfish based on the discrete element method

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