Journal ArticleDOI
Research on the constitutive model of low-damage corn threshing based on DEM
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In this paper , a creep property formula of corn based on the Burgers model was proposed, which described the change process of the stress-strain trait of corn grain with time.About:
This article is published in Computers and Electronics in Agriculture.The article was published on 2022-03-01. It has received 21 citations till now. The article focuses on the topics: Threshing & Discrete element method.read more
Citations
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Simulation Parameter Calibration and Test of Typical Pear Varieties Based on Discrete Element Method
TL;DR: In this article , the authors used the Hertz-Mindlin with a bonding model to calibrate the simulation parameters of pears by combining a physical experiment and simulation, and the results showed that the calibrated simulation parameters were reliable.
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Parameter calibration of corncob based on DEM
TL;DR: In this article , the simulation tests of corncob calibration parameters are carried out based on DEM, and the simulated bending test is carried out using the calibrated parameters, which shows the anti-destructive forces of CORNCob are 204.52 N and 197.3 N, respectively, with a relative error of 3.53%.
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Development and validation of a DEM model for predicting impact damage of maize kernels
TL;DR: In this article , a discrete element method (DEM) simulation was developed to predict the impact damage of maize kernels using an empirically-generated, three-parameter Weibull distribution to describe the damage probability from repeated impacts.
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Moisture-Dependent Physical-Mechanical Properties of Maize, Rice, and Soybeans as Related to Handling and Processing
TL;DR: In this paper , the authors investigated the changes in select physical-mechanical properties of maize, rice, and soybeans at various moisture content (10, 14, 18, 22, 26; wet basis) and their compression behavior at two loading rates of 1.25 and 125 mm/min.
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Study on the Dynamic Cutting Mechanism of Green Pepper (Zanthoxylum armatum) Branches under Optimal Tool Parameters
TL;DR: In this article , a finite element model was established for the cutting of pepper branches across the distance, and single-factor and multi-factor finite element simulation tests were conducted on the knife feed angle, tool edge angle, and knife feed speed of the working parts of the pepper cutting and harvesting device.
References
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Journal ArticleDOI
Determination of the restitution coefficient of seeds and coefficients of visco-elastic Hertz contact models for DEM simulations
TL;DR: In this article, the coefficients of restitution (CoRs) of seeds coming from three plants, namely the pea (Pisum sativum L. cv. Piast), soybean (Glycine max (L.) Merr. Annushka) and rapeseed (Brassica napus L.cv. Licosmos), at three levels of moisture content for an impact velocity V0 ranging from 0.17 to 8.8
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Effect of soil particle size on soil-subsoiler interactions using the discrete element method simulations
TL;DR: In this paper, the effect of varying modelled particle radii (ranging from 3 to 19mm) on soil-subsoiler interactions in discrete element models was investigated using laboratory tests.
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The discrete element method (DEM) to simulate fruit impact damage during transport and handling: Model building and validation of DEM to predict bruise damage of apples
M. Van Zeebroeck,Engelbert Tijskens,E. Dintwa,J. Kafashan,J. Loodts,J. De Baerdemaeker,Herman Ramon +6 more
TL;DR: In this article, the validity of the discrete element method (DEM) as a tool to predict impact damage of fruit was investigated for 'Jonagold' apples in boxes shaken with a well defined acceleration signal on an electro-hydraulic shaker.
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Visco-hyperelastic constitutive modeling of strain rate sensitive soft materials
TL;DR: In this article, a viscous dissipation potential is proposed for the visco-hyperelastic constitutive modeling of short-time memory responses of soft materials, which can capture both linear and nonlinear large deformation behaviors over a wide range of strain rates.
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DEM-based simulation of the corn threshing process
Yajun Yu,Hong Fu,Jianqun Yu +2 more
TL;DR: The feasibility and effectiveness of analysing the corn threshing process using DEM and the allied software are validated and good agreement has been found between the numerical results and experimental data.