Issue №: 2 (121)
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.
THE INFLUENCE OF THE WORKING BODIES OF RAKE-SHIFTERS ON MECHANICAL LOSSES DURING HAY PROCUREMENT
Dmytro Kondratuk – Candidate of Technical Sciences, Associate Professor of the Department of Agroengineering and Technical Services of the Vinnytsia National Agrarian University (3, Solnyshchaya St., Vinnitsa, Ukraine, 21008, kondratuk@vsau.vin.ua, https://orcid.org/0000-0003-1827-1717).
Olena Solona – Candidate of Technical Sciences, Associate Professor, Head of the Department of General Technical Disciplines and Occupational Safety, Vinnytsia National Agrarian University (3, Sonyachna Str., Vinnytsia, 21008, e-mail: solona_o_v@ukr.net, https://orcid.org/0000-0002-4596-0449).
Drying of mowed grass in the field during hay harvesting is accompanied by loss of not only moisture, but also nutrients by plants as a result of biochemical processes, vital activity of microorganisms, and leaching by precipitation. Moreover, the indicators of the specified losses increase as the length of stay of mown grass in the field increases. It is possible to reduce them due to intensification of drying. An effective way to reduce the drying time is to move the swaths and turn over the swaths of mowed grass. However, the performance of these operations is accompanied by mechanical losses of the dry matter of the grass. The bulk of mechanical losses are "tender", the most valuable parts of plants in terms of fodder - leaves, inflorescences, and other small vegetative organs of plants, which are easily bruised and irrevocably lost. This phenomenon is especially evident in legumes. Mechanical losses exceed all other types of losses and can be from 6 to 27% of the dry matter of the grass. It is possible to reduce them by creating new working bodies that are able to gently act on the grafted grass. One of such working bodies is an elastic working body, which is equipped with a ROS-1 single-rotor roll rotator. The purpose of the research was to conduct comparative laboratory tests of rake-movers, the working bodies of which are made in the form of double spring teeth and an elastic cone-shaped working body, to identify their advantages and disadvantages and to establish rational parameters and modes of operation. It was established that the elastic working body, in comparison with the working bodies made in the form of spring teeth, allows to reduce the upholstering of vegetative parts of plants by 1.20...1.25 times at a grass humidity of 33...35% and by 1.10...1, 18 times at a humidity of 47...50%. With a decrease in the moisture content of the grass, the elastic working body provides a more economical mode of cultivation, which is manifested in a decrease in the covering coefficient. Along with this, the working organs of the rake-movers, made in the form of spring teeth, act more intensively on the mowed grass, which leads to a 10-15% increase in the drying speed compared to the elastic working organ.
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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.
