Investigation of a compressor rotor non-synchronous vibration with and without fluid-structure interaction

Jiaye Gan, Hong Sik Im, Daniel Espinal, Alexis Lefebvre, GeCheng Zha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper study the non-synchronous vibration (NSV) of a high speed multistage axial compressor using rigid blade and vibrating blade with fluid-structural interaction(FSI). The unsteady Reynolds-averaged Navier-Stokes (URANS) equations and mode based structural dynamic equations are solved. A low diffusion E-CUSP Reimann solver with a 3rd orderWENO scheme for the inviscid fluxes and a 2nd order central differencing for the viscous terms are employed. A 1/7th annulus sector of IGV-rotor-stator is used with a time shifted phase lag BC at circumferential boundaries. An interpolation sliding boundary condition is used for the rotorstator interaction. The URANS simulation for rigid blades shows that the leading edge(LE) tornado vortices, roughly above 80% rotor span, travel backwards relative to the rotor rotation and cause an excitation with the frequency agreeing with the measured NSV frequency. The predicted excitation frequency of the traveling vortices in the rigid blade simulation is a non-engine order frequency of 2603 Hz, which agrees very well with the NSV rig testing. For the FSI simulation, the results show that there exist two dominant frequencies in the spectrum of the blade vibration. The lower dominant frequency is close to the first bending mode. The higher dominant frequency close to the first torsional mode agrees very well with the measured NSV frequency . The simulation conducted in this paper appears to indicate that the NSV is excited by the traveling vortex.

Original languageEnglish
Title of host publicationProceedings of the ASME Turbo Expo
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume7B
ISBN (Print)9780791845776
DOIs
StatePublished - Jan 1 2014
EventASME Turbo Expo 2014: Turbine Technical Conference and Exposition, GT 2014 - Dusseldorf, Germany
Duration: Jun 16 2014Jun 20 2014

Other

OtherASME Turbo Expo 2014: Turbine Technical Conference and Exposition, GT 2014
CountryGermany
CityDusseldorf
Period6/16/146/20/14

Fingerprint

Fluid structure interaction
Compressors
Vortex flow
Rotors
Turbomachine blades
Tornadoes
Fluids
Structural dynamics
Navier Stokes equations
Stators
Interpolation
Boundary conditions
Fluxes
Testing

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Gan, J., Im, H. S., Espinal, D., Lefebvre, A., & Zha, G. (2014). Investigation of a compressor rotor non-synchronous vibration with and without fluid-structure interaction. In Proceedings of the ASME Turbo Expo (Vol. 7B). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/GT2014-26478

Investigation of a compressor rotor non-synchronous vibration with and without fluid-structure interaction. / Gan, Jiaye; Im, Hong Sik; Espinal, Daniel; Lefebvre, Alexis; Zha, GeCheng.

Proceedings of the ASME Turbo Expo. Vol. 7B American Society of Mechanical Engineers (ASME), 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gan, J, Im, HS, Espinal, D, Lefebvre, A & Zha, G 2014, Investigation of a compressor rotor non-synchronous vibration with and without fluid-structure interaction. in Proceedings of the ASME Turbo Expo. vol. 7B, American Society of Mechanical Engineers (ASME), ASME Turbo Expo 2014: Turbine Technical Conference and Exposition, GT 2014, Dusseldorf, Germany, 6/16/14. https://doi.org/10.1115/GT2014-26478
Gan J, Im HS, Espinal D, Lefebvre A, Zha G. Investigation of a compressor rotor non-synchronous vibration with and without fluid-structure interaction. In Proceedings of the ASME Turbo Expo. Vol. 7B. American Society of Mechanical Engineers (ASME). 2014 https://doi.org/10.1115/GT2014-26478
Gan, Jiaye ; Im, Hong Sik ; Espinal, Daniel ; Lefebvre, Alexis ; Zha, GeCheng. / Investigation of a compressor rotor non-synchronous vibration with and without fluid-structure interaction. Proceedings of the ASME Turbo Expo. Vol. 7B American Society of Mechanical Engineers (ASME), 2014.
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