Vibrations in engineering and technology


Issue №: 1(96)

Published: 2020.09.01
DOI: 10.37128/2306-8744-2020-1

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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DOI: 10.37128/2306-8744-2020-1-1
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Matviychuk Viktor Andreevich - Doctor of Technical Sciences, Professor, Dean of the Faculty of Engineering and Technology of Vinnitsa National Agrarian University (3 Soniachna St., Vinnitsa, Ukraine, 21008, e-mail: vamatv50@gmail.com).

Gaidamak Oleg Leonidovich - Candidate of Science (Engineering), Associate Professor, Associate Professor of the Department of Power engineering, electrical engineering and electromechanics of Vinnitsa National Agrarian University 


The article develops processes of increase the durability of parts operating under repeated loads, by justifying the parameters of surface plastic deformation (SPD) and cold gas-dynamic coating. The influence on the depth of the reinforced surface layer, the nature of the distribution of the stress-strain state of the material and residual compressive stresses, as well as the value of the used plasticity of the metal, the parameters of the SPD process. The hypothesis is substantiated that the main factor in the formation of residual compressive stresses during SPD is the decrease in metal density, which is associated with the use of the plasticity resource. The model of definition of the used resource of plasticity of metals at SPD is developed, that allows to provide qualitative characteristics of a surface layer of details. Methods for shifting the layer with maximum hardening and residual compressive stresses to the surface of the part by using a deformable tool of smaller dimensions in subsequent passes and gas-dynamic coating before SPD.

The vast majority of traditional gas-thermal coating methods occur at significant temperature effects on the surface of the part, which is unacceptable for the surface treated by SPD methods. Cold gas-dynamic spraying provides an allowable temperature regime for the creation of special auxiliary coatings while maintaining the properties of the surface treated by SPD methods.

The technology of gas-dynamic coating includes heating the compressed gas (air), feeding it into the nozzle and forming a supersonic air stream in this nozzle, introducing a powder material into this stream, accelerating this material in the nozzle by a supersonic air flow and directing it to the surface of the workpiece. As a result, a special auxiliary coating is formed on the surface of the product, which provides optimal parameters of the SPD process.

Keywords: surface plastic deformation, residual compressive stresses, used plasticity resource, cold gas-dynamic coating.

List of references

1. Pshirkov V.F., Pudkov S. I.(1981) Surface plastic deformation of GTE compressor blades with steel and glass balls. Aviation industry.9, 18-25 [in Ukrainian]

2. Rykovsky B. P., Smirnov V. A., Shchetinin G.M.(1985) Local hardening of parts by surface hardening. Moscow: Engineering. [inUSSR]

3. Mikhalevich V. M. (1998) Tensor models accumulated post-purchase. Vinnitsya: “UNIVERSUM - Vinnitsya”. [in Ukrainian]

4. Matviychuk V. A. (2009) Mathematical model of metal damage during complex two-stage deformation [Electronic resource] Visnik DDMA. 3E (14). 126-130. - Retrieved from www.nbuv.gov.ua/e-journals/VDDMA/2008-3e14/pdf/20.pdf.

5. Device for gas-dynamic coating with radial flow of powder material: Pat. 110552 Ukraine, IPC6 С23С24 / 00 № а 201405543; claimed 05/23/14; publ. 01/12/16, Bul. №1. 12 sec.

6. Kaletnіk G. M., Chauso M. G., Shvaiko V. M. (2013) Fundamentals of engineering methods for technical and practical studies / - Kyiv: “High-Tech Pres”,  [in Ukrainian]

             7. Matviychuk V. A., Egorov V. P., Mikhalevich V. M., Pokras V. D (1993)Analysis of deformability of metals during surface hardening of parts. Forgingandstamping.10, 10-13. [ in Russia].

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About journal

Topics of the journal:

The journal "Vibrations   in engineering  and technology" presents materials on the following issues

• Theory of processes and machines
• Mechanical Engineering and materialprocessing
• Processing and food production

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

The certificateof massmediaState registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University

Kind of publication: journal
Type of publication : Scientific
Publication status: Domestic
Year of founding:
Periodicity: 4 times a year
Extent: 18.75 nominal printed pages
ISSN: 2306-8744 (printed version), (online)
Language of edition  : (mixed languages) Ukrainian, English
The scope of the distribution and the category of readers: national, foreign, teaching staff, scientists, businessmen.
Periodical is included in the list of scientific professional editions of Ukraine approved by the Order of Ministry of Education and Sciences of Ukraine from 21.12.2015 No. 1328.
The journal "Vibrations in engineering and technology" is included in the "Catalogue of periodicals of Ukraine".
Journal subscription can be executed in each post office department.
 Subscription Index is  99720.


Old version of site: http://vibrojournal.vsau.edu.ua/

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  94 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Kaletnik H.M  PhD , professor, academician NAAS 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.