Strength of Materials

, Volume 26, Issue 11, pp 821–824 | Cite as

Resonant vibrations of shrouded blades with differing frequencies with clapper interference

  • A. P. Zin'kovskii
  • A. Ya. Adamenko
  • I. N. Buslenko
  • I. G. Tokar'
Scientific and Technical Section

Abstract

We present the results of an experimental study of the influence of detuning of the frequencies of pairwise shrouded blades with clapper interference on their resonant vibrations. It is shown that both with the presence of clapper interference and with clapper clearance the appearance of the dangerous antiphase vibration mode of the paired blades is possible as a consequence of detuning of their frequencies. This mode is characterized by considerable increase of the vibratory stress level of the blades in comparison with the inphase vibrations.

Keywords

Experimental Study Stress Level Vibration Mode Considerable Increase Resonant Vibration 

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References

  1. 1.
    V. T. Troshchenko, V. V. Matveev, B. A. Gryaznov, et al., Strength of GTE Rotor Blades Under Vibratory Loadings [in Russian], Nauk. Dumka, Kiev (1981).Google Scholar
  2. 2.
    A. P. Zin'kovskii, I. N. Buslenko, and V. V. Matveev, “Resonant vibrations of turbomachine rotors with annular shrouding. Part 1. Analytic model,” Probl. Prochnosti, No. 6, 85–89 (1989).Google Scholar
  3. 3.
    V. V. Matveev, Damping of Deformable Body Oscillations [in Russian], Nauk. Dumka, Kiev (1985).Google Scholar

Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • A. P. Zin'kovskii
    • 1
  • A. Ya. Adamenko
    • 1
  • I. N. Buslenko
    • 1
  • I. G. Tokar'
    • 1
  1. 1.Institute of Strength of MaterialsUkraine National Academy of SciencesKiev

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