Issue №: 4(115)
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.
RESEARCH OF PHYSICAL AND MECHANICAL PROPERTIES OF CUT GRASS DURING HAY HARVESTING BY ROTARY WORKING BODIES
Kondratuk Dmytro – 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 ).
Trukhanska Olena – PhD, Associate Professor, 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).
Priadkin Maksym - 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).
In the process of harvesting feed from the interaction of the working bodies of machines and tools with plants, resistance arises, which entails certain energy costs. Therefore, for the development of technological processes, it is necessary to know the mechanical and physical properties of the processed environment under the influence of the working bodies of machines and tools.
Insufficient study of the properties of materials does not allow a more rational transition to new methods of work, hinders the development of fundamentally new technological processes and machines.
Knowledge of the physical essence of technological processes allows for a more reasoned development of machines, to apply rational methods of influencing their working bodies on the environment, to qualitatively improve the performance of the technological process. Knowledge of the physical and mechanical properties of agricultural materials is a necessary condition for the correct organization of the technological process and the creation of a rational design of the machine.
Agricultural materials are distinguished by a great variety and variability of their properties. Technological processes carried out by agricultural machines are aimed at changing the structure of agricultural materials. During processing, the harvested plant material undergoes a number of changes and is brought to a state that meets predetermined requirements.
Using the physical and mechanical properties of materials, they can be directed towards the construction of rational technologies and processing methods. In this case, various principles of the influence of the working bodies of machines on the material being processed can be applied. The need to study the properties of materials in different conditions, to clarify their impact on technology and mechanization is urgent. Knowledge of the properties of plant materials helps to choose the most economical methods of its processing.
The choice of the type of working body and the justification of its parameters depend on a large number of factors, in particular on the required productivity, nature, degree and state of material processing, coefficients of useful action of the machine, its energy needs. The article considers the theoretical and calculation bases of the working bodies of machines in the sequence of their impact on plant material when harvesting fodder from grasses. At the same time, the theory and calculation of the parameters of the working bodies are related to the physical and mechanical properties of the processed material and agrotechnical requirements for work processes and machines.
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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.
