Issue №: 1 (124)
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.
ANALYSIS OF ROTARY MOWER DESIGNS – CONDITIONERS
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 TRUKHANSKA – Candidate of Technical Sciences, Associate Professor of the Department of Agroengineering and Technical Service of Vinnytsia National Agrarian University (Soniachna Str., 3, Vinnytsia, 21008, Ukraine, e-mail: seaswallow@ukr.net, https://orcid.org/0000-0001-8481-8878).
Maksym PRIADKIN – Postgraduate Student of the Department of Agroengineering and Technical Service of Vinnytsia National Agrarian University (Soniachna Str., 3, Vinnytsia, 21008, Ukraine, e-mail: makspradkin4@gmail.com, https://orcid.org/0009-0003-7008-4262).
An integral operation of any technology of harvesting hay is mowing the grass, the quality of which depends on the collection of hay from a unit of area, as well as the growth of grass and the yield of grass in the following years. Modern rotary mowers are able to cut grass with high quality, regardless of the state of the stem. The main types of rotary mowers are disc and drum. Their productivity is 20-30% higher than the productivity of segment-finger mowers. The quality of hay largely depends on the drying speed of the vegetative organs of the mown plants. In order to equalize the drying speed of grass stems and leaves, rotary mowers are equipped with roller or impact (conditioners) flattening devices. The quality of grass flattening is affected by the material from which the rollers are made and the shape of their surface. With the same profile of the surface of the rollers, the efficiency of flattening with steel rollers is higher than with those covered with polymer materials. However, their work is accompanied by increased mechanical losses due to leaf breakage. In order to make the flattening rollers work smoother, rubber or polyurethane is applied to their surface. Fluted rollers flatten the grass more intensively than smooth rollers. Roller flatteners provide high-quality work when a layer of grass of uniform thickness is fed into the gap between the rollers.
On the contrary, the number of unflattened stems increases. Roller-type tedders are less harsh on the grass than dynamic tedders, therefore, in order to reduce losses from breaking off leaves and inflorescences, they are recommended for working with leguminous grasses. Since the flattening devices of dynamic action are less sensitive to the unevenness of the mass supply, it is advisable to use them when mowing grasses with an uneven density of grass and cereal grasses.
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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.
