Simulation and Performance Analysis of A Soybean Seed Metering Device Using Discrete Element Method

Yu, Jianqun; Zhang, Lienan; Li, Zhengquan; Feng, Zhanrong; Fu, Hua; Fei, Xuetong

doi:10.1166/sl.2013.2897

Cited by 11 publications

(6 citation statements)

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“…The seeds move in an School of Mechanical Engineering, Shandong University of Technology, Zibo, China approximately circular trajectory with the seed sequential plate. [7][8][9] The peanut seed filling action of the seeding device relies mainly on the space filling principle by gravity. Therefore, the seeding device has the advantages of a simple structure and high possibilities of double grains.…”

Section: New Compound Shaped-hole Structure Designmentioning

confidence: 99%

Study on the compound shaped-hole structure for the peanut seeding device

Yang

2014

Proceedings of the Institution of Mechanical Engineers, Part C:

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The loss factor of peanut seeds during seeding is high due to the serious friction between the seed and the protection panel. Aiming at solving this problem, a new type of lateral cylindrical-shaped hole structure on the vertical cylinder was put forward for the peanut seeding device. To analyze the device, the kinematics and the force bearing models have been constructed for the peanut inside the seed protection area. The explicit formulas of the maximum and the minimum seed protection angles are derived and the range of the actual protection angle is identified to optimize the design. Both the theoretical analyses and the experimental evaluations have shown that the friction damage on the peanut seed by the protection panel has been reduced in a large proportion by the introduced structure. It shows that not only the seeding performance has been improved but also the used material of the protection panel has been saved.

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Section: New Compound Shaped-hole Structure Designmentioning

confidence: 99%

Study on the compound shaped-hole structure for the peanut seeding device

Yang

2014

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Discrete element methods (DEM) which developed initially by Cundall et al [1] was the first granular dynamics simulation technique published in the open literature. DEM has been extensively used in studies of various areas, such as particle packing, particle flows, and particle-fluid flow [2][3][4]. For agriculture, there are many applications.…”

Section: Introductionmentioning

confidence: 99%

“…But it is important to note that in agricultural production, such as seeding [12,13], cleaning & drying process, etc, there are not only collisions among particles, between particles and mechanical parts, but also particle-gas/fluid, particle-gas-fluid interactions under various conditions, even mass transfer and heat transfer. High-performance equipment should let particles, gas or fluid move as expected, little damage for particles.…”

Section: Introductionmentioning

confidence: 99%

Discrete Particle Simulation of Gas-Solid Flow in Air-Blowing Seed Metering Device

Li¹,

Zhang²,

Zheng³

et al. 2021

Computer Modeling in Engineering &Amp; Sciences

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In this paper, the gas and seed flow characters in the air-blowing seed metering device are investigated by using the coupled computational fluid dynamics and discrete element method (CFD-DEM) in three dimensions (3D). The method of establishing boundary model based on the computer-aided design (CAD) drawing, has been used to build the boundary model of seed metering device. The 3D laser scanning technique and multi-element method are adopted to establish the particle model. Through a combined numerical and experimental effort, using 3D CFD-DEM software, which is based on the in-house codes, the mechanisms governing the gas and solid dynamic behaviors in the seed metering device have been studied. The gas velocity field and the effect of different rotational speeds and air pressures on the seeding performance and particle velocity have been studied, similar agreements between numerical and experimental results are gained. This reveals that the 3D CFD-DEM model established is able to predict the performance of the air-blowing seed metering device. It can be used to design and optimize the air-blowing seed metering device and other similar agriculture devices.

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“…The discrete element method is often used in the research of seed metering device, because the seed is a typical discrete material (Khatchatourian, Binelo, & Lima, 2014;Li et al, 2013). The movement law of particles can be deeply studied and analyzed by using discrete element software, and EDEM is the most widely used discrete element software (Wang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Research of Seed Group Structure Characteristics of Vertical Disc Metering Device Based on Discrete Element Method

Chen

Liu

Zhang

et al. 2021

INMATEH

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The vertical disc seed metering device was selected to study the influence of the structural characteristics of seed group on the filling performance of seed metering device. The working process of seed metering device was simulated by discrete element software to study the influence of seed quantity and structure characteristics of seed chamber on seed movement and filling results. The seed group was divided into four zones: ascending zone, relative static zone, collapse zone and recirculation zone. The number of seeds and the rotation speed of disk have no effect on the inclination angle of the recirculation zone upper surface, which was always about 35°. But they had a significant effect on the filling performance. When the number of seeds was 500-1500, QFI (quality of feed index) decreased, MIS (miss index) increased and MUL (multiple index) did not change significantly. However, when the number of seeds was 2000, the change trend of filling performance was completely opposite. Inner surface inclination angle and axial width of the seed chamber have significant effects on the filling performance. QFI first increased and then decreased with the increase of inclination angle, reaching the maximum at 20° and MIS showed the opposite trend. QFI increases with the increase of thickness and tends to be stable at 40mm. Similarly, MIS has the opposite trend.

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Simulation and Performance Analysis of A Soybean Seed Metering Device Using Discrete Element Method

Cited by 11 publications

References 0 publications

Study on the compound shaped-hole structure for the peanut seeding device

Study on the compound shaped-hole structure for the peanut seeding device

Discrete Particle Simulation of Gas-Solid Flow in Air-Blowing Seed Metering Device

Research of Seed Group Structure Characteristics of Vertical Disc Metering Device Based on Discrete Element Method

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