Dynamics of Large Power Rotating Machine with Cracked Shaft

Slawomir Banaszek

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

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 293-294Dynamics of Large Power Rotating Machine with...

Dynamics of Large Power Rotating Machine with Cracked Shaft

Abstract:

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.

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Periodical:

Key Engineering Materials (Volumes 293-294)

Pages:

337-346

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.293-294.337

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Online since:

September 2005

Authors:

Slawomir Banaszek

Keywords:

Crack, Diagnostics, Dynamic, Rotating Machinery, Slide Bearing

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