Skip to main content
SpringerLink
Log in

Frequency Characteristics and Forced Vibrations of the Rotors of High-Power Feeder Pumps of Thermal Electric Power Stations

  • Published:
Power Technology and Engineering Aims and scope

The reliability of the feed pumps of electric stations and service life depend principally on the pump vibration regime. Self-oscillation of the rotor leading to emergency shutdown of the pump has been observed in the course of several years of operation of the PN 1500-350 boiler feed pump. Two frequencies of self-excited oscillation were recorded for different modifications of the pump. Numerical calculation of the rotor dynamics is presented in order to develop methods of design that will eliminate the occurrence of self-oscillation. The results of modal analysis, the frequency response to imbalance, are nonstationary calculation of the pump rotor are discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. P. L. Kapitsa, “Stability and transition through critical revolutions of rapidly rotating rotors in the presence of fractures,” Zh. Tekh. Fiz., 9(5), 124 – 147 (1939).

    Google Scholar 

  2. A. A. Lomakin, “Calculation of the critical number of revolutions and the condition of dynamic stability of the rotors of high-pressure hydraulic engines in light of the forces that arise in the seals,” Énergomashinostroenie, No. 4, 1 – 4 (1958).

    Google Scholar 

  3. H.-J. Thomas, “Instabile Eigenschwingungen von Turbinenläufern, angefacht durch die Spaltsträmungen in Stopfbuchsen und Beschaufelungen,” AEG-sonderdruck, Z10, 5729 (1958).

    Google Scholar 

  4. V. A. Martsinkovskiy, Hydrodynamics and the Strength of Centrifugal Pumps [in Russian], Mashinostroenie, Moscow (1970), 260 pp.

    Google Scholar 

  5. V. Vasilyev (Vasil’ev), A. Nitskiy, and M. Kraposhin, “Numerical and experimental study of fluid dynamic coefficients in smooth and grooved annular seals and investigation of flow-induced self-excited rotor oscillations in high-capacity feed pumps,” in: Pump Users International Forum, 61 – 71 (2012).

    Google Scholar 

  6. Ansys Mechanical APDL. Rotordynamic Analysis Guide. http://support.analysis.com/.../ANSYS/.../ANSYS%20Rotordy (2011).

Download references

Author information

Authors and Affiliations

  1. Chelyabinsk State University, Chelyabinsk, Russia

    V. A. Vasil’ev & A. Yu. Nitskii

Authors
  1. V. A. Vasil’ev
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Yu. Nitskii
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. A. Vasil’ev.

Additional information

Translated from Élektricheskie Stantsii, No. 11, November 2018, pp. 54 – 58.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Vasil’ev, V.A., Nitskii, A.Y. Frequency Characteristics and Forced Vibrations of the Rotors of High-Power Feeder Pumps of Thermal Electric Power Stations. Power Technol Eng 53, 84–88 (2019). https://doi.org/10.1007/s10749-019-01040-w

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10749-019-01040-w

Keywords

Search

Navigation