Issue №: 3(90)
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.
MECHANICAL SYSTEMS WITH TWO-WAVE CHARACTER OF VIBRATIONS, THEIR MODELING, FEATURES, PROPERTIES AND RESEARCH
Anatoliy Demyanenko – Candidate of Technical Sciences, Professor, Head of the Department of Theoretical Mechanics, Resistance of Materials and Materials Science of the Dnipropetrovsk State Agrarian and Economic University (25, Voroshilova str., Dnipro, Ukraine, 49027,
e-mail:anatdem@ukr.net).
The problems of the dynamics of elastic systems under the action of a mobile inertial load and certain features of mechanical and corresponding mathematical models of problems of this class that can be attributed to non classical problems of mathematical physics are considered. A brief overview of the problems whose solutions are obtained on the basis of the generalized method of separation of variables is given, which in some cases makes it possible, in the framework of the initial assumptions, to construct exact solutions and on their basis to study the nature of the oscillations and stability of the system. The study of the mathematical model is performed on the basis of the method of the two-wave representation of motion in the form of two
groups – proper and accompanying oscillations. The role of the accompanying oscillations, which are caused by the mobile inertial load, vary significantly depending on the speed of the mobile load and the ratio of the fixed and fixed mass of the system. The oscillations and stability of a reinforced rectangular plate are investigated taking into account the discreteness of the location of the ribs along which the mass load flows.
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International Conference on Nonlinear Oscillations].( p. 215-219). Kiyv: Наукова думка [in Ukrainian]
2. Horoshko O.O. & Savin H.N. (1973). Vvedenie v mekhanichu deformiruemikh odnomernikh tel peremenoy dlini [Introduction to the mechanics of deformable one-dimensional bodies of variable length]. Kіуv: Naukova dumka [in Ukrainian].
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4. Gol'denblat I.I. (1947). Sovremennyye problemy kolebaniy i ustoychivosti inzhenernykh sooruzheniy [Sovremennyye problemy kolebaniy i ustoychivosti inzhenernykh sooruzheniy]. Moscow: Nauka [in Russian].
5. Demyanenko A.H. Doslidzhennya dynamiky pidsylenykh pryamokutnykh plastynok za diyi rukhomoho inertsiynoho navantazhennya [Investigation of dynamics of reinforced rectangular plates under the action of moving inertial load]. Vibratsiyi v tekhnitsi ta tekhnolohiyakh. Vinnitca. № 3(83). p. 35-39. [in Ukrainian].
6. Eyvstratenko D.A. & Demianenko A.H. (2009) Issledovanie dinamiki odnomernikh upruhikh obiektov s podvizhnoy inertsionoy nagruzkoy na osnove utochnenoy modeli [Investigation of the dynamics of one-dimensional elastic objects with a moving inertial load on the basis of a refined model]. Theoretical Foundation of Civil Engineering. Warsaw, V.17, p. 63-68. [in Poland].
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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.
