Issue №: 4(119)
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.
MECHANICS OF IMPACT INTERACTION OF A BEE BREAD GRANULE WITH WORKING ELEMENTS OF A ROTARY DEVICE
Belykh Oleksandr, postgraduate student of the State Biotechnological University, 44 Alchevskikh St., Kharkiv, Ukraine, 61002. E-mail: Sashafincol@gmail.com
The article investigates the mechanics of impact interaction between a bee bread granule and the working elements of a rotary device used for its separation from the wax–bee bread mass in beekeeping technologies. The relevance of the study is determined by the need to increase the energy efficiency and technological reliability of mechanical processing of biological materials while preserving their natural structure and biological value. The purpose of the work is to develop a theoretical model of impulse–contact interaction between a bee bread granule and the hammer surface and to establish the regularities of the post-impact motion of the granule in the field of inertial forces of the rotor mechanism. The research is based on the methods of classical rigid body mechanics, impact theory, and mathematical modeling in a rotating coordinate system. The equations of motion of the granule during the contact phase and the subsequent free motion are derived, taking into account centrifugal, Coriolis, gravitational, and frictional forces. An analytical description of the post-impact trajectory in the rotating and fixed coordinate systems is obtained. The influence of the rotor angular position, rotational speed, hammer mass, and impact location on the motion characteristics and energy dissipation of the system is analyzed. It is shown that an increase in the hammer mass above an optimal value does not lead to a proportional increase in the energy transferred to the granule and, on the contrary, causes a significant decrease in impact efficiency due to the inelastic nature of the interaction. The obtained results make it possible to determine rational impact conditions that ensure effective separation of the granules while minimizing their destruction. The developed mathematical model can be used for the parametric optimization of rotary devices for bee product processing and may also be applied to the analysis of impact dynamics in other technological systems dealing with granular and biologically heterogeneous materials.
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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.
