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On the occurrence of self-synchronization of autooscillations of turbocompressor rotor blades

  • Machine Mechanics
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Abstract

The self-synchronization of the spectral parameters of turbocompressor blades is studied, as well as its connection with nonlinear resonance during fluttering. The evolution of blade oscillations during the growth of turbocompressor rotor revolutions is characterized by the concurrence of torsional and flexural oscillation modes, a change of the base frequencies of the rotor blades, and the appearance of a common synchronization frequency in their spectrum. Fluttering comes with a loss of stability of the blades’ oscillation mode at the synchronization frequency. Estimates are obtained on the basis of the spectral analysis of the recording of transient processes of axial and centrifugal turbocompressors. The parameters of the blade oscillation modes and their power have been identified by means of the construction of models of the processes on the basis of the technology of Proni spectral analysis.

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Authors and Affiliations

  1. Moscow, Russia

    R. F. Ganiev, O. B. Balakshin & B. G. Kukharenko

Authors
  1. R. F. Ganiev
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  2. O. B. Balakshin
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  3. B. G. Kukharenko
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Additional information

Original Russian Text © R.F. Ganiev, O.B. Balakshin, B.G. Kukharenko, 2009, published in Problemy Mashinostroeniya i Nadezhnosti Mashin, 2009, No. 6, pp. 16–23.

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Ganiev, R.F., Balakshin, O.B. & Kukharenko, B.G. On the occurrence of self-synchronization of autooscillations of turbocompressor rotor blades. J. Mach. Manuf. Reliab. 38, 535–541 (2009). https://doi.org/10.3103/S105261880906003X

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  • DOI: https://doi.org/10.3103/S105261880906003X

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