Issue №: 2(117)
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.
INFLUENCE OF GRAIN STRENGTH ON THE OPERATION OF TRANSPORTING MACHINES OF POST -HARVESTING MACHINES
Tverdokhlib Igor – Candidate of Technical Sciences, Associate Professor of the department labor protection and biotechnical systems in animal husbandry, Vinnytsia National Agrarian University: Vinniytsia, st. Sonyachna 3, VNAU, 21008, e-mail: igor_tverdokhlib@yahoo.com.
Kovalchuk Oleg - graduate student of the department of labor protection and biotechnical systems in animal husbandry of the Vinnytsia National Agrarian University: Vinniytsia, st. Sonyachna 3, VNAU, 21008, e-mail: olejikvok@gmail.com.
In recent years, grain crop yields have significantly increased due to the introduction of advanced technologies, extensive use of modern agricultural machinery, and the implementation of a range of organizational measures. These advancements have substantially improved the efficiency of agricultural production and the competitiveness of products in both domestic and international markets. However, despite the notable progress, there remain internal reserves for further efficiency enhancement, particularly in the field of post-harvest grain processing.
An analysis of scientific studies by leading Ukrainian researchers, supported by practical experience, indicates that substantial grain losses during transportation are primarily caused by the imperfections in the design of the machines involved in these processes. During the operation of grain throwers, grain undergoes static compression, impacts, and friction, which result in mechanical damage. Such stresses alter the physico-mechanical properties of the grain, negatively affecting its quality, storage life, germination capacity, and commercial value. Therefore, at the design and modernization stage of grain-handling equipment, it is essential to consider the physicochemical characteristics of the specific crop being processed.
Scientific research shows that as grain moisture increases, its strength initially rises to a peak, after which it sharply declines. This demonstrates a clear relationship between grain moisture content and the energy required to initiate structural failure. To minimize damage, it is critical to account for the strength characteristics of individual grain crops during the engineering design phase of grain processing machinery.
A promising direction is the development of adaptive equipment capable of automatically adjusting its structural and operational parameters in response to the properties of the grain being processed. Additionally, breeding efforts aimed at developing varieties with enhanced mechanical strength represent a significant potential for reducing grain damage during handling.
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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.
