Double long-wavelength speckle interferometer for gas-turbine engine parts vibration research

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Abstract

To investigate gas-turbine engine parts vibration speckle interferometer has been developed, an optical scheme of which includes two sources of laser radiation with different wave length. This has made it possible to increase vibration measurement accuracy due to experimental points number increase. A diagram of the 7-th stage compressor blade inlet edge vibratory displacements  has been plotted according to the second flexural mode using speckle interferograms obtained at different length of the applied laser radiation.

About the authors

Anatoly Zhuzhukin

"KUZNETSOV" plc.

Author for correspondence.
Email: cntkknio@yandex.ru

Candidate of technical science, design engineer of the design research department, «KUZNETSOV» plc.

Russian Federation

References

  1. Jones, R. and Wykes, C. (1986), Holographic and speckle interferometry, Moscow, Mir, 328 р.
  2. Komarov, S.Iu., Prokophiev, A.B., Shaposhnikov, Iu.N., Shcheglov, Iu.D. (2002), Pipeline vibration research by digital speckle interferometry method, Izvestija Samarskogo nauchnogo centra Rossijskoj akademii nauk, vol. 4, no.1, pp. 87-90.
  3. Zhuravlev, O.A., Shakhmatov, E.V, Kruchkov, A.N., Bystrov, N.D., Dolgov, A.I. (2009), Main features of digital speckle interferometer for definition of high-loaded aircraft fuel pump elements vibration characteristics, Izvestija vuzov. Aviazionnaja technika, no. 4, pp. 57 – 59.
  4. Zhuzhukin, A.I., Solyannikov, V.A. (2013), The utilization peculiarities of digital camera in the optical scheme of speckle pattern interferometer for vibrometry of gas turbine engines parts, Izvestija Samarskogo nauchnogo centra Rossijskoj akademii nauk, vol. 15, no. 4, pp. 192 - 195.
  5. Zhuzhukin, A.I. (2013), Application of speckle interferometry for research of electric power plant parts vibration and static deformation, Vestnik Samarskogo gosudarstvennogo universiteta, no. 9/2 (110), pp. 80 – 86.
  6. Shcheglov, Iu.D. (2012), Processing speckle images using pseudo-interferograms, Vestnik Samarskogo gosudarstvennogo ajerokosmicheskogo universiteta im. akademika S.P. Koroljova, no. 3(34), pp. 125 – 132.

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Copyright (c) 2018 Анатолий Иванович Жужукин

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Journal of Dynamics and Vibroacoustics

ISSN 2409-4579 (Online)

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

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

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