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RESEARCH PAPERS

Stability of a Turbine-Generator Rotor Including the Effects of Certain Types of Steam and Bearing Excitations

[+] Author and Article Information
A. H. Landzberg

IBM Research Center, Mohansic Laboratory, Yorktown Heights, N. Y.

J. Appl. Mech 27(3), 410-416 (Sep 01, 1960) (7 pages) doi:10.1115/1.3644016 History: Received July 09, 1959; Online September 16, 2011

Abstract

The effects of certain steam forces and bearing oil-film forces on vibration stability of a turbine-generator rotor are considered. A matrix method for systematically calculating the characteristic equation of a real rotor is developed with the aid of complex notation. The matrices are 4 × 4 in size. Pedestal effects are not included. A simple example is worked out and the results are compared to those obtained by another author. Complete agreement is obtained in the determination of the characteristic equation.

Copyright © 1960 by ASME
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