Issue №: 4(111)
The journal solves the problems of creation and improvement of machinery and technologies for agriculture: 131 - Applied Mechanics, 132 - Materials Science, 133 - Industrial Engineering, 141 - Power Engineering, Electrical Engineering and Electromechanics, 208 - Agricultural Engineering.
TECHNOLOGICAL PASSPORT STUDY PISTON AND CONNECTING ROD BARE MATERIAL AXIAL ROTARY PISTON PUMP
Muzychuk Vasyl – PhD, Associate Professor of the Department of “Technological Processes and Equipment of Processing and Food Productions” of the Vinnytsia National Agrarian University (3 Solnechnaya St, Vinnytsia, 21008, Ukraine, e-mail: wasil@vsau.vin.ua).
A technological passport of the alloy steel material has been formed, from which a piston-connecting rod pair of an axial-rotor piston pump is made in the form of functions: flow curve, plasticity diagram, Bauschinger curve, calibration graph.
Using the approximation of the neck contour by the Gaussian function at any moment of deformation of a cylindrical specimen in the supercritical region, the main parameters used in engineering calculations are related: the minimum diameter of the specimen, the current diameter of the specimen with a given coordinate, the relative (absolute) elongation and contraction with the parameters referred to the moment of rupture sample. In addition, the elongation and contraction of the sample after fracture are unambiguously associated. The approximation avoids the inconvenient and relatively expensive video filming for studying the history of deformation.
It is shown that the effect of heat treatment on the mechanical properties of these steels is not the same for different stress state schemes. The tensile strengths of these steels are close as delivered.
The plasticity characteristics of steel 30Kh3MFA exceed the plasticity of steel 38Kh2MYuA by 1.5 times. The flow curves of the steels under consideration have the following tendency: so the coefficient of approximation of the flow curve for 38Kh2MYuA steel in the delivery state exceeds its value in relation to steel 30Kh3MFA by 1.23 times. After heat treatment of these steels, the value of the approximation coefficient increases: for steel 38Kh2MYuA by 1.11 times, for steel 30Kh3MFA by 1.46 times.
The results obtained make it possible to control the mechanics of the technological operation of rolling the piston-connecting rod pair and create a process control mechanism in order to prevent rejects during the rolling process, which manifests itself in the form of going beyond the tolerance field for the axial clearance of the piston-connecting rod pair, as well as destruction during rolling of the inner part of the piston.
[1] Smirnov-Alyaev, G. A. (1968). Mekhanicheskiye osnovy plasticheskoy obrabotki metallov [Mechanical foundations of plastic processing of metals]. L: Mashinostroenie. [in Rassian].
[2] Kolmogorov, V. L. (1970). Napryazheniye. Deformatsii. Razrusheniye [Voltage. Deformations. Destruction]. M: Metallurgy. [in Rassian].
[3] Ogorodnikov, V. A. (1983). Otsenka deformiruyemosti metallov pri obrabotke davleniyem [Assessment of the deformability of metals during pressure treatment]. K: Vyshcha shkola. [in Ukrainian].
[4] Ogorodnikov, V. A., Lebedeva, G. A. (1996). Tekhnologicheskiy pasport materiala prednaznachennyy dlya obrabotki davleniyem zagotovok aviastroyeniya i avtomobilestroyeniya [Technological passport of the material intended for pressure treatment of aircraft and automotive blanks]. Vibrations in engineering and technology.Vinnytsya, 1(3). 54–60. [in Ukrainian].Hwang, D. V. (1992). Tekhnologicheskiye ispytaniya materialov. [Technological testing of materials]. Voronezh. [in Rassian].
[5] Del', G. D. (1971). Opredeleniye napryazheniy v plasticheskoy oblasti po raspredeleniyu tvordosti [Determination of stresses in the plastic area from the distribution of hardness]. M: Mashinostroyeniye. [in Rassian].
[6] Anisimov, V. F., Muzychuk, V. I., Hunʹko, I. V., Kovalʹchuk, O. S. (2017). Doslidzhennya osnovnykh elementiv konstruktsiyi hidromashyny 310.224 [Research of the basic elements of a design of the hydraulic machine 310.224]. Tekhnika enerhetyka, transport APC . Vinnytsya, 2(97). 41–46. [in Ukrainian].
[7] Ohorodnikov, V. A., Muzychuk, O. V., Nakhaychuk, V. I. (2007). Mekhanika protsesiv kholodnoho formozminyuvannya z odnotypnymy skhemamy mekhanizmu deformatsiyi. Monohrafiya [Mechanics of cold forming processes with the same type of deformation mechanism schemes. Monograph]. V: UNIVERSUM-Vinnytsya [in Ukrainian].
[8] Gunko, I. V., Muzychuk, V. I., Nakhaichuk, O. V. (2015). Talking tne development of deformation into determining normal and tangential contact stresses at the forge. Tekhnika, enerhetyka, transport APC. Vinnytsya, 2 (85). 102–107. [in English].
[9] Syvak, R. I. (2015). Plastychnistʹ metaliv pry nemonotonnomu navantazhenni [Plasticity of metals at nonmonotonic loading]. Tekhnika, enerhetyka, transport APC. Vinnytsya, 1(91). 108–111 [in Ukrainian].
[10] Sivak, R. (2017). Evaluation of metal plasticity and research on the mechanics of pressure treatment processes under complex loading. Eastern-European journal of enterprise technologies, 6/7(90). 34–41. [in English].
About journal
The magazine "Engineering, Energy, Transport AIC" is included in the list of scientific professional editions of Ukraine on technical sciences
(Category "Б", Order of the Ministry of Education and Science of Ukraine dated 02.07.2020 №886)
According to the decision of National Council of Television and Radio Broadcasting of Ukraine from 25.04.2024 No. 1337 the scientific journal «Engineering, Energy, Transport AIC» has the ID of the Media R30-05173.
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.
Founder of the journal: Vinnytsia National Agrarian University
Type of publication: journal
Kind of publication: scientific
Publication status: domestic
Year of foundation: 1997
Periodicity: 4 times per year
Volume: 18-20 conv. print. sheet (А4)
ISSN: 2520-6168 (print version), (online version)
Language of publication: (mixed languages) Ukrainian, English
The sphere of distribution and category of readers: national, foreign, faculty, scientists, entrepreneurs.
The periodical edition is included to the List of scientific professional publications of Ukraine on technical sciences, approved by order of the Ministry of Education and Science of Ukraine in 05.16.2016, No. 515.
The journal "Engineering, Energy, Transport AIC" is included in the "Catalog of Ukrainian Publications".
Subscription to the journal can be issued in each post office. The subscription index is 99720.
Technology, energy, agriculture transport AIC is a scholarly professional journal with a long-standing history and stable academic tradition, reflecting the evolution of engineering and technical sciences within the agro-industrial sector of Ukraine.
The journal was founded in 1997 under the title Bulletin of Vinnytsia State Agricultural Institute. According to the Resolution of the Presidium of the Higher Attestation Commission of Ukraine dated September 11, 1997, the publication obtained the status of a professional scientific journal, which enabled the publication of the main results of doctoral and candidate dissertations in technical sciences. From its inception, the journal positioned itself as an academic platform for addressing current issues of mechanization, electrification, and technical support of agricultural production.
During 2001–2014, the journal was published under the title Proceedings of Vinnytsia National Agrarian University. Series: Technical Sciences (State Registration Certificate of Print Media KV No. 16644-5116 PR dated April 30, 2010). Throughout this period, a systematic approach to the selection and peer review of scientific manuscripts was established, the thematic scope of publications was expanded, and continuity of scientific directions as well as the development of sectoral engineering schools was ensured.
Since 2015, the journal has been published under its current title, Technology, energy, agriculture transport AIC (State Registration Certificate No. 21906-11806 R dated March 12, 2016). The change of title reflected the expansion of the journal’s thematic coverage and its orientation toward interdisciplinary research in mechanical engineering, energy systems, electrical engineering, transport technologies, automation, and digital solutions for the agro-industrial complex.
The journal consistently adheres to the principles of open science. All published materials are distributed under the Creative Commons Attribution 4.0 International License (CC BY 4.0), ensuring open access to research results provided proper attribution to the authors and the original publication is maintained.
At present, Technology, energy, agriculture transport AIC is an authoritative professional scientific journal (Category B), providing a platform for the publication of fundamental and applied research results, promoting the integration of education, science, and industry, and contributing to the advancement of engineering and technological support of the agro-industrial complex of Ukraine.
