Numerical simulation of particle motion at cucumber straw grinding process based on EDEM

Xu, Yuan; Zhang, Xiliang; Wu, Shuo; Chen, Cheng; Wang, Jizhang; Yuan, Shuxia; Chen, Bin; Li, Pingping; Xu, Rongfu

doi:10.25165/j.ijabe.20201306.5452

Cited by 10 publications

(9 citation statements)

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“…Most research methods of traditional agricultural machinery are predominantly grounded in theoretical analysis and experimental research [ 15 ]. However, the latter approach is characterized by its time-consuming and labor-intensive nature, along with significant limitations.…”

Section: Introductionmentioning

confidence: 99%

Design and experiment of a shovel-tooth removal end-effector for abnormal plants in hybrid rape breeding based on MBD-DEM coupling

Xing,

Ding,

Xue

et al. 2023

PLoS ONE

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In view of the problem that removing abnormal plants in breeding rape requires a large amount of labor and is inefficient, combined with the planting requirements of breeding rape, a shovel-tooth end-effector was designed, and a shovel-tooth removal test bench was built. A simulation model based on MBD (Multibody Dynamics)-DEM (Discrete Element Method) coupling was constructed. Then we conducted a Box-Behnken test with four factors and three levels. Taking the angle of soil penetration, speed of soil penetration, depth of soil penetration and speed of shovel-tooth gathering as the test factors, the soil penetration force and shovel-tooth gathering force as the test indicators. The mathematical regression model between test indicators and test factor was established. After optimizing the parameters of the model, the best combination of parameters with low soil penetration force and low shovel-tooth gathering force was obtained: angle of soil penetration of 84°, speed of soil penetration of 9 cm/s, depth of soil penetration of 8cm, and speed of shovel-tooth gathering of 6 cm/s. The simulation model was validated by field experiments. The average soil penetration force and average shovel-tooth gathering force of the three groups of pull-out tests were 34.8 N and 763.0 N, respectively. The removal rates were 96%, 92%, and 94%, all greater than 90%, indicating that the removal effect of the shovel-tooth end-effector was good, and the parameters were reasonably designed. The results can serve as reference for the design of rape abnormal plants removal device and the operation of MBD-DEM coupling simulation end-effector.

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Section: Introductionmentioning

confidence: 99%

Design and experiment of a shovel-tooth removal end-effector for abnormal plants in hybrid rape breeding based on MBD-DEM coupling

Xing,

Ding,

Xue

et al. 2023

PLoS ONE

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“…Li et al [16] constructed stalk and grain models in EDEM and then simulated and analyzed the motion and separation of stalks and grain in the airflow field by adopting computational fluid dynamics and the discrete element method (CFD-DEM). Xu et al [17] constructed cucumber stalk models in EDEM and then simulated the stalk-crushing process. Ramirezgomez et al [18] constructed the models of corn stalks, rice husks, and forage rape stems in EDEM and then calibrated the contact parameters for the density and models of blocky biomass fuel pressed by such materials.…”

Section: Introductionmentioning

confidence: 99%

Calibration and Test of Contact Parameters between Chopped Cotton Stalks Using Response Surface Methodology

et al. 2022

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The accuracy of the material parameter settings directly affects the reliability of the results of the discrete element method simulation. It is necessary to calibrate the relevant parameters to obtain accurate discrete element simulation results when separating the cotton stalk particles from the residual film after crushing. The repose angle of the chopped cotton stalk particles was used as the response value to calibrate the contact parameters between particles. Physical tests measured the intrinsic particle and contact parameters between the cotton stalk particles and the contact material, which provided data for the simulation tests. According to the biological structure characteristics of cotton stalk, the discrete element method model of cotton stalk particles was constructed by bonding the elements of nonequal-diameter basic particles. Based on the response surface methodology, the stacking test of particles was simulated. The response model between the contact parameters and repose angle was established, and the effect law of the single-factor terms and interaction terms on the repose angle was analyzed. The optimal combination of contact parameters was obtained through the single-objective and multi-variable optimization methods. Finally, the contact parameter combination was verified by a simulation test of the repose angle. The results showed that the average relative error of the repose angle between the simulation test and the physical test was 1.04%, which verified the accuracy of the calibrated contact parameters and the reliability of the simulation test. These parameters provide a basis for the discrete element simulation study of cotton stalk motion in the separation process of cotton stalks and residual film and the subsequent gas–solid coupling simulation research.

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“…Most of the traditional agricultural machinery research methods are based on theoretical analysis and experimental research [6], but the traditional test method is timeconsuming, laborious, and subject to seasonal constraints. With the rapid development of computer technology, DEM and its numerical simulation software, EDEM, have been extensively used in the field of agricultural engineering [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Lu et al [15] studied the movement principles of rice seeds on the vibration plate and optimized the parameters of a vibratory even-seeding device for hybrid rice by using the Hertz-Mindlin non-sliding contact model to simulate the working process of a V-T type vibrating plate. Xu et al [6] used EDEM to simulate the crushing process of cucumber straw and investigate the optimal crushing process parameters to improve the crushing efficiency and reduce power consumption. He et al [16] designed a centralized fertilizer ejecting device and analyzed the fertilizer ejecting performance using EDEM to optimize the structural parameters of the fertilizer ejecting wheel.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Verification of Seed-Filling Performance of Single-Bud Billet Sugarcane Seed-Metering Device Based on EDEM

Wang

Liu

et al. 2022

Agriculture

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The seed filling of a seed-metering device is a critical process in sugarcane cultivation operations. To analyze the contact between billets, the related mechanical components, and the law of billets movement in the seed-metering device, a simulation of the seed-filling process based on EDEM was proposed, and a geometric model of the seed-metering device, a particle model, and a contact model were established by EDEM software. The physical experimental results and simulation results of the angle of repose were compared. The experimental results showed that the relative error of the angle of repose experiment was 6.67%, which verified the effectiveness of the material parameters of single-bud billet; the linear correlation coefficient of the seed-filling experiment was 0.762 for Sq and 0.869 for Se, which demonstrated the validity of using EDEM software to simulate the seed-filling process. Finally, the velocity and force of the particles in the seed-filling process were analyzed in EDEM. The analysis results indicated that there are two circulation circles in the seed box, and the larger the circulation circle, the easier the billets enter the rake bar. The EDEM simulation provides a basis for optimizing the structure and parameters of the sugarcane billet planter in future work.

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Numerical simulation of particle motion at cucumber straw grinding process based on EDEM

Cited by 10 publications

References 0 publications

Design and experiment of a shovel-tooth removal end-effector for abnormal plants in hybrid rape breeding based on MBD-DEM coupling

Design and experiment of a shovel-tooth removal end-effector for abnormal plants in hybrid rape breeding based on MBD-DEM coupling

Calibration and Test of Contact Parameters between Chopped Cotton Stalks Using Response Surface Methodology

Numerical Simulation and Verification of Seed-Filling Performance of Single-Bud Billet Sugarcane Seed-Metering Device Based on EDEM

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