Optimization of the cylindrical sieves for separating threshed rice mixture using EDEM

Yuan, Jianbo; Wang, Jufei; Li, Hua; Qi, Xindan; Wang, Yongjian; Li, Chao

doi:10.25165/j.ijabe.20221502.5150

Cited by 4 publications

(2 citation statements)

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“…Point cloud data were merged and sharpened using Geomagic Studio and GOM Inspect software, respectively. A 3D model of oil sunflower seeds was obtained and imported into EDEM software for particle filling [17,18] . EDEM uses the combined ball method for the particle filling of 3D models, which has been widely used in the simulation analysis of agricultural materials such as peanuts, wheat, maize, and soybeans [19,20] .…”

Section: Discrete Element Model Of Oil Sunflower Seedmentioning

confidence: 99%

Multiparameter collaborative optimization of the vibrating screen based on the behavior of oil sunflower seed penetrating screen holes

Wei,

Li,

Hao

et al. 2024

International Journal of Agricultural and Biological Engineering

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The behavior of oil sunflower seeds penetrating screen holes is an important factor that affects the screening performance of oil sunflower seeds. In this study, a double-deck reverse-motion vibrating screening device for oil sunflower seed screening was designed. The force condition and motion law of the oil sunflower seeds on the screen surface were analyzed. This study compared the effect of particle filling amount of discrete element model of oil sunflower seeds on the simulation effects. The screening process was numerically simulated using the coupled Discrete Element Method and Multibody Dynamics (DEM-MBD) technique with the screening percentage of oil sunflower seeds as the index. The influence of the operating parameters of the vibrating screen on the screening effect was analyzed using a multiparameter collaborative optimization scheme. The results of this study can provide a reference for the numerical simulation of crop screening behavior and the development of screening devices.

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Section: Discrete Element Model Of Oil Sunflower Seedmentioning

confidence: 99%

Multiparameter collaborative optimization of the vibrating screen based on the behavior of oil sunflower seed penetrating screen holes

Wei,

Li,

Hao

et al. 2024

International Journal of Agricultural and Biological Engineering

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“…In the agricultural machinery industry, screens are commonly used in harvesting devices [5] and cleaning devices [6]. In the study of harvesting devices, researchers always analyze the separating performance [7,8], net harvesting performance [9], or loss rate of the vibrating screen [10,11]. However, the particle conveyance ability is also very important and rarely studied.…”

Section: Introductionmentioning

confidence: 99%

Study on the Conveying Characteristics of a Hanged Harvester Vibrating Screen for Ligusticum Chuanxiong

Wang,

Liao,

Xia

et al. 2024

Processes

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The problem of soil and Chuanxiong tuber congestion on vibrating screens usually exists during the Chuanxiong mechanized harvesting process. To address this problem, the conveyance performance of a crankshaft rocker vibrating screen was studied. By establishing and solving the dynamics and kinematics equations for the crankshaft rocker vibrating mechanism and Chuanxiong soil residue, the acceleration of the vibrating screen and Chuanxiong-soil residue was studied. The sliding speed, motion process, and conveying distance of the Chuanxiong soil residue were also analyzed. The theoretical analysis results indicated that the acceleration of the vibrating screen depends on the rod lengths of the vibrating mechanism and the crank rotational speed and position. The displacement of the Chuanxiong-soil residue along the positive sliding direction in a cycle was more significant than that of the negative sliding direction. The appropriate advancement speed of the harvester was also obtained. The RecurDyn and EDEM coupling simulation was conducted. The simulation results verified the theoretical analysis. In the simulation, the Chuanxiong-soil residue was effectively conveyed. The field tests were conducted to verify the theoretical analysis. The harvester was tested in the field with crank rotational speeds of 0 r/min, 120 r/min, and 240 r/min, and advancement speeds of 0.5 m/s, 1 m/s, 1.5 m/s, and 2 m/s. The results showed that there was no congestion in the screen during the working process when the rotational speed of the crank was 240 r/min, and the advancement speed of the harvester was no faster than 1.5 m/s. When the crank rotational speed was 240 r/min, and the advancement speeds were 0.5 m/s, 1 m/s, and 1.5 m/s, the weights of Chuanxiong and soil on the screen after the test were 71.5 kg, 84.7 kg, and 105.7 kg, respectively. The field tests verified the conveyance performance of the vibrating screen. This study can provide a theoretical reference for designing the crankshaft rocker vibrating mechanism for the rhizome harvesting machine.

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Discrete element modelling of bulk behaviour of wheat (Triticum aestivum L.) cv. ‘Pionier’ during compressive loading

Ramaj,

Romuli,

Schock

et al. 2024

Biosystems Engineering

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Optimization of the cylindrical sieves for separating threshed rice mixture using EDEM

Cited by 4 publications

References 0 publications

Multiparameter collaborative optimization of the vibrating screen based on the behavior of oil sunflower seed penetrating screen holes

Multiparameter collaborative optimization of the vibrating screen based on the behavior of oil sunflower seed penetrating screen holes

Study on the Conveying Characteristics of a Hanged Harvester Vibrating Screen for Ligusticum Chuanxiong

Discrete element modelling of bulk behaviour of wheat (Triticum aestivum L.) cv. ‘Pionier’ during compressive loading

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