Dynamic spur geared rotor analysis of a multi-shaft turbine with gear parameters

T. N. Shiau, C. R. Wang, D. S. Liu, W. C. Wang, W. C. Hsu

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

Abstract

The dynamic analysis of the multi-shaft turbine rotor equipped with a spur gear pair for the various gear parameters is studied. Main components of the multi-shaft turbine rotor system include the outer shaft, the inner shaft, the impeller shaft, the oil shaft and the ball bearings. The global assumed mode method (GAMM) is applied to model the rotor motion and the system equation of motion is formulated using Lagrange's approach. The dynamic behavior of the geared multi-shaft turbine rotor system includes the natural frequency, mode shape and unbalanced response. Numerical results show that large vibration amplitude is observed in steady state at self-excited rotating speed adjacent to the natural frequency. There is no influence of the various pressure angle, modulus, and modification coefficients on unbalance response. Contrary to above cases, the variation of the system unbalance response is dominated by the tooth types rather than the other gear parameters.

Original languageEnglish
Title of host publicationStructures and Dynamics
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791856765, 9780791856765
DOIs
Publication statusPublished - 2015 Jan 1
EventASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015 - Montreal, Canada
Duration: 2015 Jun 152015 Jun 19

Publication series

NameProceedings of the ASME Turbo Expo
Volume7A

Other

OtherASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015
CountryCanada
CityMontreal
Period15-06-1515-06-19

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Shiau, T. N., Wang, C. R., Liu, D. S., Wang, W. C., & Hsu, W. C. (2015). Dynamic spur geared rotor analysis of a multi-shaft turbine with gear parameters. In Structures and Dynamics (Proceedings of the ASME Turbo Expo; Vol. 7A). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/GT2015-43337