Issue №: 2 (93)
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.
ESTIMATION OF THE STRESS-STRAIN STATE OF THE BLADE BASED ON INTERPROGRAM INTERACTION OF PROGRAM COMPLEXES
Карпік Анна Олександрівна (Карпик Анна Александровна, Karpik Anna) – асистент, Національний технічний університет «Харківський політехнічний інститут», м. Харків; e‑mail: karpikann@gmail.com.
Basis of numerical simulation of turbulent viscous gas flow, using the Navier-Stokes equations averaged the Reynolds (RANS-model), a static analysis of the gas turbine compressor blade was performed. The simulation of flow parameters in three-dimensional formulation was carried out. For the solution of system of the equations the iterative differential scheme was built. The initial equations are integrated numerically by use of the iterative explicit and implicit differential scheme with a second order approximation. The differential two-parametrical SST Menter's model is used as a model of turbulence. As a result, distributed pressure and velocities in the blades channel were obtained and unfavorable flow zones were identified. At the second stage, was developed algorithm by which the interrelation of the gas-dynamic and mechanical calculation program was established. As a result, distributed pressure was applied to the finite-element model of the blade and a static analysis was performed. Static calculation makes it possible to calculate the stress-strain state of the construction.
1. Birger I. A., Shorr B. F. Dinamika aviatsionnykh gazoturbinnykh dvigateley [Dynamics of aviationgas-turbine engines]. Moscow, Mashinostroeniye Publ., 1981. 232 p.
2. Yershov S. V. Rusanov A. V. Problemy chislennogo modelirovaniya trekhmernykh vyazkikh techeniy v osevykh i tsentrobezhnykh kompressorakh [Problems of numerical simulation of three-dimensional viscous flow sinaxialand centrifugal compressors]. Visnyk SumDU [Bulletin of SumyStateUniversity]. 2005, no. 1 (73), pp. 25–34.
3. Karpik A., Vorobiev Yu. Nonlinear Analysis Of Gas Flow In Compressors Stage Based On Cfd-Method. Proceeding softhe 5 th International Conference «Nonlinear Dynamics – 2016», Sept. 27 – 30, 2016, Kharkov. Kharkov, 2016, pp. 318–319.
4. Menter F. R. Two-equation eddy-viscosity turbulence models for engineering applications. AIAA J. 1994, vol. 32, no. 8, pp. 1598–1605.
5. Karpik A. A., Yakovlev V. A., Vorobiev Yu. S. Analiz gazodinamicheskoy struktury potoka v reshetkakh profiley osevogo kompressora gazoturbinnogo dvigatelya [Analysis of the gas-dynamic structure of the flow intheblade channel of the axial compressorof a gas turbineengine]. Problemy mashinostroyeniya [Problems of Mechanical Engineering]. 2015, no. 18, 4/2, pp. 18–23.
6. Yershov S., Yakovlev V. Aerodinamicheskaya optimizatsiya lopatochnykh apparatov turbin : podkhody, metody, rezul'taty [Aerodynamic optimization of turbineblades : approaches, methods, results]. Problemy mashinostroeniya. Seriya : Aerodinamika i gidromekhanika v energeticheskikh mashinakh [Problems of Mechanical Engineering. Ser. : Aero- and hydromechanics for energymachinery]. 2012, vol. 15, no. 2, pp. 3–13.
7. Vorob'yev Yu. S. Kolebaniya lopatochnogo apparata turbomashin [Колебания лопаточного аппарата турбомашин]. Kyiv, Naukova dumka Publ., 1988. 224 p.
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.
