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DOI: 10.15507/2658-4123.030.202002.219-231
Simulation of Sesame Seeds Outflow in Oscillating Seed Metering Device Using DEM
Noureldin N. Sharaby
Assistant Lecturer of Agricultural Engineering Department of Faculty of Agriculture, Kafrelsheikh University (El-Geish St., Kafr el-Sheikh 33516, Egypt), Postgraduate Student of Chair of Engineering and Maintenance of Transporting and Manufacturing Systems at Agribusiness Department, Don State Technical University (1 Gagarin Square, Rostov-on-Don 344000, Russia), ORCID: https://orcid.org/0000-0001-5506-1589, This email address is being protected from spambots. You need JavaScript enabled to view it.
Artyom A. Doroshenko
Associate Professor of Chair of Engineering and Maintenance of Transporting and Manufacturing Systems at Agribusiness Department, Don State Technical University (1 Gagarin Square, Rostov-on-Don 344000, Russia), Ph.D. (Engineering), ORCID: https://orcid.org/0000-0003-3739-7059, This email address is being protected from spambots. You need JavaScript enabled to view it.
Andrey V. Butovchenko
Head of Department of Chair of Engineering and Maintenance of Transporting and Manufacturing Systems at Agribusiness Department, Don State Technical University (1 Gagarin Square, Rostov-on-Don 344000, Russia), Ph.D. (Engineering), Associate Professor, ORCID: https://orcid.org/0000-0002-9335-9586, This email address is being protected from spambots. You need JavaScript enabled to view it.
Introduction. Sesame crop is one of the most important export crops in many countries around the world, especially in Africa. To meet the agricultural requirement of precision planting, various types of precision seed planters have been developed. Numerous studies were carried out to study the optimisation of the parameters of the precision planting. One of these parameters, affecting the quality of the precision seeder, is the grain outflow from the seed metering device.
Materials and Methods. In order to maintain good continuous performance of an oscillating seeder, it is important to monitor seed flow in real-time and adjust oscillation parameters automatically. Existing research methods, such as prototyping and monitoring the process using a high-speed camera, by reason of the random movement of particles, do not allow obtaining sufficient data to understand trajectories and velocities of particles and existing equations for particle motion when simulating the sowing process do not allow taking into account the interaction of particles that having various shapes, rolling and sliding friction coefficients, and the elastic modulus of particle materials and a working body. In this study, the outflow rate of sesame seeds in an oscillating seed metering device was modeled using the simulation method based on the discrete element method. The aim of this study is to create a simulation model of an oscillating-type sowing planter using the sowing sesame seeds as an example for evaluating the effectiveness of this model, and the possibility of further optimization and prediction of sowing seeds with this device.
Results. The analysis of the results showed that during the simulation, the sowing rate of sesame seeds when leaving the oscillating seed metering holes has significant differences in number and direction. The results of the modeling process in this study showed that when opening a hole in the oscillating seeder, a number of sesame seeds from 0 to 4 were coming out of it. The resulting model allows monitoring the behavior of each particle of a sesame seed, analyzing its trajectory, speed, and forces acting on it at any one time, and varying the parameters to obtain the dependence of uneven seeding on the kinematic and geometric parameters of the device.
Discussion and Conclusion. The obtained simulation results provide an effective method for predicting the consumption of sesame seeds from the oscillating seed meter, which serves as the basis for optimizing the kinematic and geometric parameters of the oscillating sowing device in order to increase its efficiency. This model is universal and can be adapted to sow other crops.
Keywords: discrete element method, sesame seeds, oscillating seed metering, precision seeder, seeds motion
For citation: Sharaby N.N., Doroshenko A.A., Butovchenko A.V. Simulation of Sesame Seeds Outflow in Oscillating Seed Metering Device Using DEM. Inzhenerernyye tekhnologii i sistemy = Engineering Technologies and Systems. 2020; 30(2):219-231. DOI: https://doi.org/10.15507/2658-4123.030.202002.219-231
Contribution of the authors: N. N. Sharaby – collecting and analyzing the theoretical and practical materials for the research topic, analyzing the scientific sources for the research study, critical analysis and revising of the paper; A. A. Doroshenko – scientific guidance, mathematical modeling for the study object, analyzing the study results; A. V. Butovchenko – scientific guidance, a problem statement, definition of research methodology, critical analysis and revision the paper.
All authors have read and approved the final manuscript.
Received 21.11.2019; revised 14.01.2020; published online 30.06.2020
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