Issue №: 2 (125)
The journal solves the problems of creation and improvement of machinery and technologies for agriculture: 131 - Applied Mechanics, 132 - Materials Science, 133 - Industrial Engineering, 141 - Power Engineering, Electrical Engineering and Electromechanics, 208 - Agricultural Engineering.
NUMERICAL SIMULATION OF THE PROCESS OF PRELIMINARY SEPARATION OF THE SEED MIXTURE ON THE SCREW FEEDER OF THE VIBRO-FRICTION SEPARATOR
Oleksii KOZACHENKO – Doctor of Technical Sciences, Professor of the Department of Agricultural Machinery and Animal Husbandry Engineering of the State Biotechnology University (63172, Kharkiv, 322/76 Louis Pastera St., e-mail: o.v.kozachenko21@gmail.com, https://orcid. org/0000-0003-1326-4307).
Elchyn ALIIEV – Doctor of Technical Sciences, Senior Researcher, Professor of the Departments of Mechanization of Production Processes in Animal Husbandry of Dnipro State Agrarian and Economic University (St. S. Efremova, 25, Dnipro, Ukraine, 49000, e-mail: aliev@meta.ua, https://orcid.org/0000-0003-4006-8803).
Yevhenii PIKH – recipient of the scientific degree of Doctor of Philosophy at the State Biotechnology University (62459 Kharkiv region, Kharkiv district, Vysoky township, Naukovyi ave., building 12).
The separation process is the most important stage in the preparation of seed material of small-seeded oil crops. It is based on technical-technological principles of separation of seed material, the basis of which is the difference in the physical and mechanical properties of individual components. Such properties include shape, size, mass, specific gravity, surface condition and other properties that characterize the main seed of the crop and impurities.
Since the seed mixture is a polydisperse medium in its physical essence, the theoretical studies were carried out using numerical simulation software packages that contain models of discrete elements.
The goal is to carry out a numerical simulation of the process of preliminary separation of the seed mixture on a screw feeder and to substantiate its rational design parameters.
To carry out numerical simulation of the process of separation of the seed mixture on the vibro-friction separator, the improved physical and mathematical apparatus (1)–(12) of the movement of the particle of the seed mixture component, which is included in the model of the Simcenter Star-CCM+ software package, was used.
As a result of the numerical simulation of the process of preliminary separation of the seed mixture on the screw feeder, a visualization of the process of movement of their main components (seeds of the main crop, weed seeds and plant impurities) from the accepted research factors (step of the turn of the screw plate) was obtained Hf, angle of inclination of the screw plate αf, the radius of the seed injection point rf, angle of rotation of the screw plate θf).
According to the results of the calculation, the regression equations of the second order of the dependence of the radius were obtained rθ from the origin of the coordinates to the point of intersection of the trajectory of the components with a line that is at a certain angle θf rotation of the screw plate, from research factors. As an evaluation criterion, the condition of expanding the distribution zone of the components of the mixture is adopted, which consists in the fact that the radius for the seeds of the main crop rн should be the largest, and the radius for plant impurities rд should be the smallest. By solving the mathematically given condition by the method of function ranking and unification into a single criterion, rational design parameters of the screw feeder of the vibro-friction separator were obtained: Hf = 0,192 m, αf = 14,7 °, rf = 0,014 m, θf = 96,2 °.
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About the journal
G8 – Materials Science
G9 – Applied Mechanics
G10 – Metallurgy
G11 – Mechanical Engineering (by specializations)
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
The All-Ukrainian scientific journal “Technology, energy, agriculture transport AIC” is an open-access scientific publication that publishes the results of original research, theoretical and applied developments, as well as scientific papers in the fields of engineering sciences, energy systems, and transport technologies of the agro-industrial complex.
The main objective of the scientific journal “Technology, energy, agriculture transport AIC” is to disseminate the results of modern scientific research and to promote the development of technical, energy, and transport solutions for the agro-industrial complex through the publication of scientific materials characterized by scientific novelty and practical significance in the field of design and modernization of machinery, equipment, and technologies.
The journal’s activities are focused on supporting the development of engineering science, stimulating the implementation of innovative approaches into industrial practice, as well as ensuring effective exchange of scientific achievements among researchers, educators, engineers, and other specialists in relevant fields.
Objectives of the Journal
To achieve its defined objective, the journal ensures the implementation of the following key tasks:
· publication of the results of fundamental and applied research covering the fields of applied mechanics, mechanical engineering, materials science, energy systems, electrical engineering, electromechanics, and transport systems of the agro-industrial sector;
· promotion of the implementation of advanced technical and technological developments aimed at improving the efficiency of machinery, equipment, and production processes;
· creation of conditions for active scientific exchange among research institutions, higher education institutions, industrial enterprises, and other interested organizations;
· support for the development of interdisciplinary research and expansion of cooperation among specialists in various fields of science and technology;
· promotion of the improvement of the scientific and technical level of research related to the design, modernization, and operation of technical equipment used in agro-industrial production;
· dissemination of information on modern achievements in science and technology and the implementation of innovative technologies in the fields of technical support, energy, and transport;
· development of a scientific information environment that facilitates effective scientific communication and the integration of national research into the international scientific community.
Publication frequency: 4 issues per year
Languages of publication: Ukrainian, English
Editor-in-Chief: Vitalii YAROPUD
State Registration: Decision of the National Council of Ukraine on Television and Radio Broadcasting № 1337 and № 1180. Media Identifier: R30-05173
EDRPOU Code: 00497236
Publisher ROR: https://ror.org/05m3ysc06
Publisher DOI Prefix: 10.37128
Technology, energy, agriculture transport AIC is a scholarly professional journal with a long-standing history and stable academic tradition, reflecting the evolution of engineering and technical sciences within the agro-industrial sector of Ukraine.
The journal was founded in 1997 under the title Bulletin of Vinnytsia State Agricultural Institute. According to the Resolution of the Presidium of the Higher Attestation Commission of Ukraine dated September 11, 1997, the publication obtained the status of a professional scientific journal, which enabled the publication of the main results of doctoral and candidate dissertations in technical sciences. From its inception, the journal positioned itself as an academic platform for addressing current issues of mechanization, electrification, and technical support of agricultural production. During 2001–2014, the journal was published under the title Proceedings of Vinnytsia National Agrarian University. Series: Technical Sciences (State Registration Certificate of Print Media KV No. 16644-5116 PR dated April 30, 2010). Throughout this period, a systematic approach to the selection and peer review of scientific manuscripts was established, the thematic scope of publications was expanded, and continuity of scientific directions as well as the development of sectoral engineering schools was ensured. Since 2015, the journal has been published under its current title, Technology, energy, agriculture transport AIC (State Registration Certificate No. 21906-11806 R dated March 12, 2016). The change of title reflected the expansion of the journal’s thematic coverage and its orientation toward interdisciplinary research in mechanical engineering, energy systems, electrical engineering, transport technologies, automation, and digital solutions for the agro-industrial complex.
