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Vibration Sensitivity of Large Turbine Generator Shaft Trains to Unbalance Read chapter Read first chapter

2015 | OriginalPaper | Chapter

Prediction of Rotor Dynamic Behavior of Synchronous Generators

Authors : J. S. Rao, Vijendra Gupta, Prachi Khullar, D. Srinivas

Published in: Proceedings of the 9th IFToMM International Conference on Rotor Dynamics

Publisher: Springer International Publishing

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Abstract

Synchronous generators form the main part of a turbo generator set, yet their rotor dynamic behavior is not as common as the turbines in the system. This paper addresses the rotor dynamics of synchronous generators. The generator is modeled as a beam for the shaft and rotor core, as lumped masses and transverse inertias for flywheels, fan, and exciter. Bearing oil film is modeled using speed dependent stiffness and damping coefficients in both direct and cross-coupled directions. Direct stiffness coefficients are modeled for the bearing housing and supporting structure. The unbalance response is also determined as a function of the speed. The analysis is repeated replacing the beam model of the shaft as a solid model.

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previous chapter Controlling Non-linear Axial Vibrations of a Turbine Rotor
next chapter Towards Determination of Critical Speeds of a Rotating Shaft with Eccentric Sleeves: Equations of Motion
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Metadata
Title
Prediction of Rotor Dynamic Behavior of Synchronous Generators
Authors
J. S. Rao
Vijendra Gupta
Prachi Khullar
D. Srinivas
Copyright Year
2015
Book
Proceedings of the 9th IFToMM International Conference on Rotor Dynamics

Print ISBN: 978-3-319-06589-2

Electronic ISBN: 978-3-319-06590-8

Copyright Year: 2015

DOI
https://doi.org/10.1007/978-3-319-06590-8_148

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