Dynamics of Large Power Rotating Machine with Cracked Shaft

Abstract:

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The paper presents the course and results of crack propagation simulation research. The object taken into account is a large power turbo-set rotor. The computer code system NLDW is presented. It uses a non-linear model of journal bearings, and well known crack model. Crack depth is marked by a crack coefficient. It is shown the crack generates a coupled forms of lateral, axial and torsional vibrations in multi-support rotor. Their intensity depends on the axial and circumferential crack location on the shaft. The attempt at pointing a proper diagnostic indicator for crack detection in large rotating machine is made according to obtained results.

Info:

Periodical:

Key Engineering Materials (Volumes 293-294)

Edited by:

W.M. Ostachowicz, J.M. Dulieu-Barton, K.M. Holford, M. Krawczuk and A. Zak

Pages:

337-346

DOI:

10.4028/www.scientific.net/KEM.293-294.337

Citation:

S. Banaszek "Dynamics of Large Power Rotating Machine with Cracked Shaft ", Key Engineering Materials, Vols. 293-294, pp. 337-346, 2005

Online since:

September 2005

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Price:

$35.00

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