Application of holographic interferometry for study rotor stator interaction in turbomachines

Cover Page

Cite item

Full Text

Abstract

In article take up two examples application of holographic interferometry for investigation modes vibrations spinning bladed discs of engines and analysis vibrations taking into account rotor stator interaction.
In the first example blade vibration measurement on operating compressor were carried out to investigate the extent of blade excitation of impeller. Interesting responses of the radial blades to the excitation were obtained with the compressor with the cambered vane diffuser. Unusual and unexpected significant resonance peaks of blade were observable when rotating frequency is near 18000 rpm with maximum stress amplitudes. A vibration test at rest using holographic interferometry was carried out by taking an interferogram of the impeller with one diameter and circle.
In present paper for the first example was shown that strong impeller vibration excited by the diffuser vanes is due to interaction between impeller and diffuser vanes and spinning impeller oscillated with mode one diameter and circle.
In the second example vibrations wheel of turbine was investigated on holographic test stand and during spinning test. At work turbine wheel consisting of stage was find out that dangerous stresses with frequency about 8000 Hz arise from the action of 28 harmonic. At investigation of this wheel on the holographic stand was find mode with 7 diameters on the frequency 7893 Hz.
Strong turbine vibration excited stator vines is due to interaction between turbine wheel and stator vines. As a result spinning turbine wheel oscillated with mode 7 diameters.

About the authors

Valeriy Grigor'evich Seleznev

Central Institute of Aviation Motors

Author for correspondence.
Email: dep007@rtc.ciam.ru

Senior research scientist

Russian Federation

Ivan Yur’evich Golovchenko

Central Institute of Aviation Motors

Email: dep007@rtc.ciam.ru

Head of department of dynamic measurements and signal pro-cessing

Russian Federation

References

  1. Den Hartog, J.P. (1956), Mechanical vibrations, 4th ed., McGraw-Hill Book Company, New York, USA, 437 p.
  2. Tyler, J.M. and Sofrin, T.G. (1962), "Axial flow compressor noise studies", SAE Transactions, vol. 70, pp. 309-332. doi: 10.4271/620532.
  3. Kushner, F. (1980), "Disk vibration – rotating blade and stationary vane interaction", Journal of Mechanical Design, vol. 102(3), pp. 579-584. doi: 10.1115/1.3254788.
  4. Ohashi, H. (1994), "Case study of pump failure due to rotor-stator interaction", International Journal of Rotating Machinery, vol. 1, no. 1, pp. 53-60. doi: 10.1155/S1023621X94000059.
  5. Seleznev, V.G. and Golovchenko, I.Ju. (2015), Sposob opredeleniya kharakteristiki kolebatel’nogo dvizheniya elementa turbomashin , Russia, Pat. № 2538427.
  6. Seleznev, V.G., Golovchenko, I.Ju. and Matjukhin, D.V. (2018), Ustroystvo dlya analiza dinamicheskikh protsessov v rabochikh kolesakh turbomashin , Pat. № 2659428.
  7. Seleznev, V.G., Sobolev, N.D. and Yakovlev, V.V. (1971), "Ustanovka dlya izmereniya peremeshcheniy metodom golograficheskoy interferometrii" , Zavodskaya Laboratoriya , vol. 37, no. 8, pp. 979-980.
  8. Koskin, A.O. and Seleznev, V.G. (2014), "The study of shrouded fan vibration modes and frequencies on a holograph and as a part of the engine on the test rig", Vestnik of the Samara State Aerospace University, no. 5(47), part 2, pp. 109-114.
  9. Haupt, U. and Rautenberg, M. (1984), "Blade vibration measurements on centrifugal compressors by means of telemetry and holographic interferometry", Journal of Engineering for Gas Turbines and Power, vol. 160, no. 1, pp. 70-78. doi: 10.1115/1.3239553.

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2019 Валерий Григорьевич Селезнев, Иван Юрьевич Головченко

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Journal of Dynamics and Vibroacoustics

ISSN 2409-4579 (Online)

Publisher and Founder: Samara National Research University, 34, Moskovskoye shosse, Samara, 443086, Russian Federation.

Extract from the register of registered media

Editor-in-chief:  Academician of the RAS
E. V. Shakhmatov 

4 issues per year.

Free price

Editorial address: room 324, 43, Gaya street, Samara, 443086

Address for correspondence: 34, Moskovskoye shosse, Samara, 443086, Russian Federation, Samara National Research University (room 324, building 14)

Phone: 8 (846) 267 47 66

e-mail: dynvibro@ssau.ru

www: https://dynvibro.ru

© Samara University

 

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies