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Vibrations in engineering and technology

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 1(92)

Published: 2019.11.08
DOI: 10.37128/2306-8744-2019-1


Description:
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.

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VIBRATORY MACHINE FOR ROOT POTATOE CROPS DRY CLEANING AND TRANSPORTING AND ITS NONLINEAR MATHEMATICAL MODEL

DOI: 10.37128/2306-8744-2019-1-4
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Stotsko Zinoviy – Sc. Doctor, Professor, Head of Department “Designing and Operation of Machines” of Lviv Polytechnic National University (12 Bandera str., Lviv, Ukraine, 79013, e-mail: stotsko@lp.edu.ua).

Topilnytskyy Volodymyr – PhD, Associate Professor of the Department of Designing and Operation of Machines of the Lviv Polytechnic National University (S. Bandery str., 12, Lviv, Ukraine, 79013, e-mail: topilnvol@gmail.com).

Kusyi Yaroslav – PhD, Associate Professor of the Department of Mechanical Engineering Technologies of the Lviv Polytechnic National University (S. Bandery str., 12, Lviv, Ukraine, 79013, e-mail: jarkym@ukr.net).

Rebot Dariya – PhD, Assistant of the Department of Designing and Operation of Machines of the Lviv Polytechnic National University (S. Bandery str., 12, Lviv, Ukraine, 79013, e-mail: dasha_kotlyarova@ukr.net).

Annotation

     The design of a vibrating machine for dry cleaning on the transport of root crops is proposed. The machine has an independent vibrating unbalanced drive and a spring suspension. It is equipped with a grid system and raw grocery separators to improve the efficiency of cleaning process. It has a wide range of changes in kinematic, power and geometric parameters, which regulates the intensity of the purification process depending on the type of raw grocery.
     A nonlinear mathematical model of the motion description of this machine was constructed with the aim of studying its dynamics and selection the parameters that would ensure the maximum efficiency of its operation. The model is parametric and unified, and it is a system of analytical dependencies describing the oscillating motion of the working chamber of the machine and the raw material to be cleaned, depending on the machine parameters.

Keywords: dry cleaning, root crops, mathematical model, vibration machine, spring suspension, debalance, working chamber.

List of references

1. Krysak F.M. (2012). Napriamky vdoskonalennia mashyn dlia myttia korenebulboplodiv [Areas of improvement of machines for washing root crops]. Zb. nauk. prats Vinnytskoho natsionalnoho ahrarnoho universytetu, 11, 284-288 [in Ukrainian].
2. Vsevolodov A.N., Hladushniak A.K. (2012).  Optymyzatsyia protsessa «sukhaia moika» korneplodov [Optimization of the process of "dry washing" of root crops]. Kharchova nauka i tekhnolohiia, 3, 83-87 [in Ukrainian].
3. Flonts, I.V. (2013). Udoskonalennia transportera-separatora dlia koreneplodiv [Improvement of root crop conveyor-separator]. Silskohospodarski mashyny. Zb. nauk. st. Lutsk: LDTU, 24, 122-128 [in Ukrainian].
4. H.M. Postnov, N.O. Afukova, D.V. Dmytrevskyi (2014). Mekhanichne obladnannia [Mechanical equipment]. Kharkiv: Khark. derzh. un-t kharchuvannia ta torhivli [in Ukrainian].
5. Tkachenko I., Vyviurka N. (2004). Matematychne modeliuvannia protsesu ochyshchennia koreneplodiv pry yikh impulsnomu navantazhenni [Mathematical modeling of roots cleaning process at their impulse loading]. Visnyk TDTU, 1, 40-46 [in Ukrainian].
6. Topilnytskyy. V., Rebot. D., Sokil. M., Velyka. O., Liaskovska S., Verkhola. I., et al. (2017).  Modeling the dynamics of vibratory separator of the drum type with concentric arrangement of sieves. Eastern-European Journal of Enterprise Technologies. Applied Mechanics, 86, 26-35.
7. Stotsko Z. A., Topilnytskyi V. H., Kusyi Ya. M., Rebot D. P. (2018). Matematychna model doslidzhennia dynamiky vibratsiinoho separatora z poslidovnym rozmishchenniam syt [A mathematical model for studying the dynamics of a vibration separator with sequential screening]. Vibratsii v tekhnitsi ta tekhnolohiiakh, 89, 49-57 [in Ukrainian].
8. Mitropolskii Yu. A. (1997). Nelineynaya mekhanika. Odnochastotnye koljebaniya  [Nonlinear mechanics. Single frequency oscillations]. К.: Ins.matematiki NAN Ukrainy [in Russian].
9. Boholiubov. N.H., Mytropolskyi Yu.A. (1974). Asymptotycheskye metody v teoryy nelyneinykh kolebanyi [Asymptotic methods in the theory of nonlinear oscillations]. Moskva: Fyzmatyz [in Russian].

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About the journal

Topics of 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:

 

 

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Key information:
ISSN (print): 2306-8744
DOI: 10.37128/2306-8744

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

History of journal:

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.