Skip to main content
SpringerLink
Log in

Dynamic Multi-Stage Analysis of a Mistuned Aircraft Rotor with Foreign Object Ingestion

  • Original Paper
  • Published:
Journal of Vibration Engineering & Technologies Aims and scope Submit manuscript

Abstract

Background

A dynamic multi-stage analysis was carried on an aircraft engine with a foreign object in its inlet. The analysed aircraft engine rotor included seven compressor stage and one turbine stage.

Method

Finite element method is used to analyse multistage coupling caused by the low engine order simultaneous excitation of the mistuned first and second compressor bladed discs and turbine bladed disc. Low EO excitation may occur due to foreign object ingestion, e.g. a bird strike.

Results

Blade mistuning and multi-stage coupling causes individual blades and bladed discs to vibrate simultaneously in particular stages. More blade stress peaks appeared in the mistuned system than in the tuned system, which shows that mistuning causes multistage coupling.

Conclusions

This study has shown for the first time that mistuned compressor and a turbine bladed discs on a shaft have higher individual blade stress peaks and a different blade-to-blade stress distribution than mistuned bladed discs without a shaft. This shows that multistage coupling is very important. Mistuning effects were analysed for a specific aero-engine with one specific mistuning pattern and an exact amplification. However, the described effects are valid for other mistuning patterns. If we change the mistuning pattern on one bladed disc, the multistage coupling effects will also change but the general conclusions will be the same.

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

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
Fig. 20
Fig. 21
Fig. 22
Fig. 23
Fig. 24
Fig. 25
Fig. 26
Fig. 27
Fig. 28

Similar content being viewed by others

References

  1. Bladh R, Castanier M, Pierre C (2003) Effects of multistage coupling and disc flexibility on mistuned bladed disc dynamics. J Eng Gas Turbines Power 125:121–130

    Article  Google Scholar 

  2. Shahab AAS, Thomas J (1987) Coupling effects of disc flexibility on the dynamics behaviour of multi disc-shaft system. J Sound Vib 114(3):435–452

    Article  Google Scholar 

  3. Sharma BK, Devadig HV, Singh AK (2005) Modal time history analysis of a steam turbine rotor to an earthquake excitation—a 3D approach. Adv Vib Eng 4(4):351–359

    Google Scholar 

  4. Sinha A (2007) Reduced-order model of mistuned multi-stage bladed rotor. In: Proceedings of ASME Turbo Expo 2007: Power for Land, Sea and Air, May 14–17, Montreal, Canada

  5. Laxalde D, Lombard J-P, Thouverez F (2007) Dynamics of multi-stage bladed discs systems. In: Proceedings of ASME Turbo Expo 2007: Power for Land, Sea and Air, May 14, Montreal, Canada

  6. Rzadkowski R, Drewczynski M (2010) Multistage coupling of eight bladed discs on a solid shaft. Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air, June 14–18, Glasgow, UK

  7. Rzadkowski R, Maurin A (2012) Multistage coupling of eight mistuned bladed disc on a solid shaft. Part 1. Free vibration analysis, ASME TURBO-EXPO, Denmark, Copenhagen, June 11–15, 2012, ASME paper GT-2012-68391

  8. Rzadkowski R, Maurin A (2014) Multistage Coupling of eight mistuned bladed discs on a solid shaft of the steam turbine, forced vibration analysis. J Vib Eng Technol 2(6):495–508

    Google Scholar 

  9. Rzadkowski R, Maurin A (2013) Free vibration of mistuned aircraft engine bladed discs, interdisciplinary applications of kinematics. In: Kecskemethy A, Flores FG (ed) Proceedings of the International Conference, Lima, Peru, Mechanisms and Machines Science 26, 73–80, Springer

  10. Rzadkowski R, Maurin A (2014) Multistage coupling of mistuned aircraft Engine bladed discs in a forced vibration analysis. ASME TURBO-EXPO, Dusseldorf, Germany, ASME paper GT2014-26108

  11. Rzadkowski R, Maurin A (2014) Forced vibration of eight mistuned bladed discs on a solid shaft—excitation of the second compressor bladed disc. 9th IFToMM International Conference on Rotordynamics, 22–25 Sept, Milano

  12. Rzadkowski R, Gnesin V, Kolodyazhnaya L, Szczepanik R (2013) The unsteady low-frequency aerodynamic forces acting on rotor blades in the first Two stages of a jet engine axial compressor in the case of a bird strike, 10th European Conference on Turbomachinery, Fluid Dynamics and Thermodynamics, Lappeenranta, Finland, Editor J. Backman, G. Bois, O. Leonard, Conference Proceedings, 222–234

  13. Drewczynski M, Rzadkowski R (2015) A stress analysis of a compressor blade in partially blocked inlet condition. Proc Inst Mech Eng Part G J Aerospace Eng 229(9):934–952

    Google Scholar 

Download references

Acknowledgement

The authors wish to acknowledge NCBiR for the financial support of this work (POIR.04.01.04-00-0116/17).

Author information

Authors and Affiliations

  1. The Szewalski Institute of Fluid Flow Machinery, Fiszera 14, 80-952, Gdansk, Poland

    R. Rzadkowski

  2. Air Force Institute of Technology, Ksiecia Bolesława 6, 01-494, Warsaw, Poland

    R. Rzadkowski

Authors
  1. R. Rzadkowski
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to R. Rzadkowski.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Rzadkowski, R. Dynamic Multi-Stage Analysis of a Mistuned Aircraft Rotor with Foreign Object Ingestion. J. Vib. Eng. Technol. 6, 339–355 (2018). https://doi.org/10.1007/s42417-018-0050-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42417-018-0050-3

Keywords

Search

Navigation