Issue №: 4(95)
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.
Features of realization of process of peeling of a nut shell between a plate and a spherical insert
Polievoda Yurii – candidate of technical sciences, associate professor of the department of technological processes and equipment for processing and food production, Vinnytsia National Agrarian University: Vinnitsia, st. Sonyachna 3, VNAU, 21008, e-mail: vinyura36@gmail.com.
The profitability of walnut cultivation and processing was investigated in the paper, both on small farms and large agricultural enterprises. The demand for walnuts in Ukraine and abroad was investigated. Theoretical studies of the dynamics of nut crop growth in the territory of our country were conducted. The tendency to increase domestic production of walnuts in the future is established.
Among the most important areas of the organization of the process of purification of this raw material is noted the process of chopping (crushing) of its shell. Applying a constructive implementation of a vibrating machine «GMK-350» for the process of mechanical cleavage of the shell of a walnut were carried out studies of the influence of the working body (plate and spherical insert) on the technological and energy parameters of the process taking into account the quality of the processed product (the integrity of the core).
The article analyzes the process of shelling of walnuts between the plate and the spherical insert. Graphical correlations between the size of the shell deformation and the dynamics of change of the driving force of change at different nut humidity and shell thickness are analyzed.
The scheme of driving forces in the area of contact between the nut and the ring is drawn up and analyzed.
The graphical dependences of the maximum crushing force on the bevel of the rings according to different shell thickness are presented; variations of the maximum crushing force depending on the humidity of the nuts for different thicknesses of the nut shell.
It is established that, theoretically, the coefficient of friction increases as the angle of inclination of the ring increases. It is established that the crushing force of a walnut shell depends less on the friction coefficient and more on the contact surface.
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2. Yanovych V.P. (2015). Obgruntuvannia tekhnolohii ta obladnannia dlia pererobky voloskykh horikhiv [Rationale for the technology and equipment for processing walnuts]. Zbirnyk naukovykh prats vinnytskoho natsionalnoho ahrarnoho universytetu, seriia tekhnichni nauky-Collection of scientific works of Vinnytsia National Agrarian University, series of technical sciences. VNAU, 1(89), 1, 136-139. [in Ukrainian].
3. Polievoda Y.A. (2019). Doslidzhennia protsesu lushchennia voloskykh horikhiv mizh dvoma paralelnymy plastynamy [Investigation of the process of peeling walnuts between two parallel plates]. Vibratsii v tekhnitsi ta tekhnolohiiakh. Vseukr. nauk. tekhn. Zhurnal- Vibrations in technology and technology. All-Ukrainian. Sciences. tech. magazine. 3 (94), 110-117 [in Ukrainian].
4. Polievoda Y.A. (2019). Vyznachennia fizyko-mekhanichnykh parametriv shkaralupy voloskoho horikha [Визначення фізико-механічних параметрів шкаралупи волоського горіха]. Vibratsii v tekhnitsi ta tekhnolohiiakh. Vseukr. nauk. tekhn. Zhurnal- Vibrations in technology and technology. All-Ukrainian. Sciences. tech. magazine. 2 (93), 12-17 [in Ukrainian].
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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.
