Issue №: 3(110)
The journal deals with the problems of vibration technologies and machines, mathematical methods of vibration process studies, information on design and technological development, presents teaching and methodological aspects of teaching in the Higher School of Applied Sciences, where vibration machines and technologies are studied.
ANALYTICAL DETERMINATION OF ASYMMETRIC PARAMETERS DISK HARROW
Gritsenko Oleksandr Researcher, Institute of mechanics and automatics of agroindustrial production of the national academy of agrarian sciences of Ukraine. (11/1, Vokzalna St, Glevakha, Fastiv district, Kiyv region, 08631)
Stepanenko Sergey Dr.Tech. Sc., Institute of mechanics and automatics of agroindustrial production of the national academy of agrarian sciences of Ukraine. (11/1, Vokzalna St, Glevakha, Fastiv district, Kiyv region, 08631, е-mail: stepanenko_s@ukr.net; ORCID iD 0000-0002-8331-4632)
Nasonov Vasyl Ph.D, Institute of mechanics and automatics of agroindustrial production of the national academy of agrarian sciences of Ukraine. (11/1, Vokzalna St, Glevakha, Fastiv district, Kiyv region, 08631)
Govorov Oleksandr Ph.D., Senior Research Fellow, Institute of mechanics and automatics of agroindustrial production of the national academy of agrarian sciences of Ukraine. (11/1, Vokzalna St, Glevakha, Fastiv district, Kiyv region, 08631, e-mail: Aleksandr_Govorov@ukr.net; ORCID iD 0000-0002-1645-1725)
Having analyzed the technologies of pre-sowing field preparation, it should be concluded that the soil is processed before sowing with cultivators, disk, tooth and needle harrows, as well as soil tillers. Rolling before sowing ensures the destruction of soil lumps, as well as partial leveling of the field surface. However, the task of qualitative preparation of the field for sowing with the use of disk harrows is currently insufficiently solved, therefore it is necessary to substantiate the rational design parameters of an asymmetric disk harrow containing working bodies, which include, in particular, spherical disks.
The following should also be noted, if the harrow is intended for use on harder, for example, chernozem soil, then the rod is attached to the hole further from the axis of rotation of the two-armed lever, which ensures the distance of the attachment device from the middle line of the harrow, which conditions the preservation of its balance when working on such soil.
The process of rectilinear movement and rotation of spherical disks with a certain radius R in the soil at a depth h, which are installed at different angles to the direction of harrow movement, is considered. In the work, the impact of spherical disks with the remains of stubble, chopped straw was considered, it was established that spherical disks should be clamped between the sharpened cutting edge and the soil and cut them.
It has been established that for guaranteed rotation of a spherical disk in the soil with minimal slippage and rolling resistance, its diameter must be substantiated. Since the spherical disk for soil cultivation is installed at an angle of attack α, to the direction of harrow movement, the projection of the spherical disk in the longitudinal-vertical plane is an ellipse with semi-axes.
The rational diameter of the spherical disc of the asymmetric disc harrow under the conditions of its rotation in the soil with minimal values of sliding and rolling resistance, as well as a high-quality process of cutting the soil, stubble and soil displacement, is theoretically substantiated. It was established that the rational values of the diameter of the spherical disc of the asymmetric disc harrow depends on the depth h of soil treatment, the angle of attack α and the physical and mechanical properties of the soil.
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About the journal
The journal "Vibrations in Engineering and Technologies" is included in the list of technical scientific publications of Ukraine
(Category "B", Order of the Ministry of Education and Science of Ukraine dated July 2, 2020 No. 886)
Old version of the site: http://vibrojournal.vsau.edu.ua/
The journal "Vibrations in Engineering and Technology" is indexed by the following databases and catalogs:
The certificateof massmedia State registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University
The journal is devoted to highlighting current issues in engineering, mechanical engineering, and technological processes, including the study of dynamic and oscillatory phenomena in technical systems, the application of mathematical methods for process modeling and analysis, as well as the presentation of results of design-engineering and technological developments. Particular attention is given to the study of vibration processes and their application in modern technologies.
The purpose of the scientific journal “Vibrations in Engineering and Technologies” is to disseminate the results of fundamental and applied research in the field of engineering sciences aimed at developing theoretical foundations and practical approaches to the design, analysis, and improvement of machines, materials, and technological processes, including the use of vibration and oscillatory effects in various sectors of production.
The publication is focused on the formation of a modern scientific and informational environment for the effective exchange of research results, support of innovative development, and implementation of advanced technical solutions in industry, agro-industrial production, and related fields.
The journal promotes the development of interdisciplinary research, the integration of modern engineering approaches, and the enhancement of the efficiency of technological processes and technical systems, including through the rational use of vibration phenomena.
Objectives of the Scientific Journal
To achieve its stated purpose, the journal addresses the following key objectives:
dissemination of results of fundamental and applied scientific research in the fields of mechanics, mechanical engineering, technological processes, machine dynamics, and equipment, as well as in areas related to the application of vibration phenomena in engineering and technologies;
promotion of research aimed at the creation and improvement of machines, mechanisms, and technological equipment based on oscillatory and vibration processes;
support for the implementation of modern technological solutions focused on improving productivity, energy efficiency, and reliability of technical systems;
обеспечение scientific exchange of research results among research institutions, higher education establishments, and industrial enterprises;
development of interdisciplinary cooperation among researchers in the fields of mechanics, materials science, material processing technologies, and automation of technological processes;
dissemination of modern scientific achievements and advanced technologies related to the application of vibration processes in production and technical systems.
Publisher Vinnytsia National Agrarian University
In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published 119 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Ihor Kupchuk, Candidate of Technical Sciences, Associate professor, Associate Professor of the Department of Engineering Mechanics and Technological Processes in the Agricultural Industry Faculty of Engineering and Technology Vinnytsia National Agrarian University is the chief editor of the "Vibrations in engineering and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.
