Issue №: 3(122)
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.
NUMERICAL MODELING OF THE VIBRATIONAL SYSTEM OF A VIBRATORY FEEDER FOR A SEED MIXTURE IMPURITY ANALYZER
Melnyk Stanislav – Postgraduate Student of Dnipro State Agrarian and Economic University (St. S. Efremova, 25, Dnipro, Ukraine, 49000, e-mail: e-mail: Stealths1978@gmail.com, https://orcid.org/ 0000-0002-8151-223X).
Kudriavtsev Maksym – Postgraduate Student of the Department of Technical Systems Engineering of Dnipro State Agrarian and Economic University (St. S. Efremova, 25, Dnipro, Ukraine, 49000, e-mail: wot1249071@gmail.com, https://orcid.org/ 0009-0001-0996-5066).
A theoretical and numerical model of the vibrational system of a vibratory feeder for a seed mixture impurity analyzer with an electromagnetic vibrator has been developed. Based on the Lagrange equations of the second kind, the relationship between the design parameters of the elastic system, the direction of the excitation force, and the dynamic characteristics of the working tray has been established. The geometric and physicomechanical properties of the elastic elements were taken into account to determine their equivalent parameters. Numerical modeling was performed using a parametric modeling approach in the SolidWorks Simulation environment. Modal analysis established that the sixth natural frequency of the structure is 92.046 Hz, which is close to the frequency of the main harmonic component of electromagnetic excitation of 100 Hz when the vibrator is powered from a single-phase 50 Hz supply. It was established that this frequency ratio results in post-resonant operation of the vibratory feeder and provides dynamic amplification of the working tray oscillations. Sequential parametric modeling was performed to determine the effects of the inclination angle of the elastic beams θ, spacing between them As, thickness Ds, height Hs, inclination angle of the vibrator β, and excitation frequency ω on the dynamic characteristics of the system. Based on the criteria of maximum displacement amplitude, velocity, and vibration acceleration of the working tray, the rational design parameters were determined as follows: θ = 50.4°, As = 28.8 mm, Ds = 2.9 mm, Hs = 90 mm, β = 39.6°, and ω = 100 Hz. With this combination of parameters, the maximum displacement amplitude at the end of the vibrating tray is 2.06 mm, the maximum oscillation velocity is 206.3 mm/s, and the maximum vibration acceleration is 102.8 m/s². The results confirm the significant influence of the geometric parameters of the elastic system and the direction of the electromagnetic excitation force on energy transfer to the working tray, while the excitation frequency determines the nature of dynamic amplification in the vicinity of the natural frequency of the structure.
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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.
