Stability analysis of a turbine rotor system with alford forces

H. S. Kim, M. Cho, S. J. Song

Research output: Contribution to journalEditorial

17 Scopus citations

Abstract

An analytical/numerical stability analysis of a turbine rotor system with Alford effects was carried out. A six-degree-of-freedom model of a rotor system supported at both ends by bearings was developed. A classical Euler-Bernoulli beam finite element with support springs and dampers was employed for structural modeling. The results show that the Alford forces can indeed cause structural instability and that external damping can stabilize such a rotor system.

Original languageEnglish
Pages (from-to)777-790
Number of pages14
JournalJournal of Sound and Vibration
Volume258
Issue number4
DOIs
StatePublished - Dec 2002

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