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Vibrations in engineering and technology

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 2 (93)

Published: 2019.11.07
DOI: 10.37128/2306-8744-2019-2


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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ESTIMATION OF THE STRESS-STRAIN STATE OF THE BLADE BASED ON INTERPROGRAM INTERACTION OF PROGRAM COMPLEXES

DOI: 10.37128/2306-8744-2019-2-5
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Карпік Анна Олександрівна (Карпик Анна Александровна, Karpik Anna) – асистент, Національний технічний університет «Харківський політехнічний інститут», м. Харків; e‑mail: karpikann@gmail.com.

Annotation

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.

Keywords: blade channel, viscous flow, numerical simulation, distributed pressure, finite element model, stress-strain state.

List of references

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.

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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.