Inclusion of unsteady bow in a model-based monitoring system for rotors

Markus Rossner, Thomas Thuemmel, Heinz Ulbrich

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A system for automatic model-based monitoring of multiple coexistent errors is being developed. Within this publication, the unsteady bow curve of a test rig rotor is examined. For simulating this rotor, the bow model of the Jeffcott rotor is expanded to a MDOF rotor. The application of the Ritz approach enriched with problem-specific shape functions leads to an accurate simulation with low numerical effort. The bow model and the monitoring scheme are successfully tested. Bow, unbalance and roundness error can be identified separately during normal operation of the rotor.

Original languageEnglish
Title of host publicationProceedings of the 9th IFToMM International Conference on Rotor Dynamics
EditorsPaolo Pennacchi
PublisherKluwer Academic Publishers
Pages1605-1615
Number of pages11
ISBN (Electronic)9783319065892
DOIs
StatePublished - 2015
Event9th IFToMM International Conference on Rotor Dynamics, 2014 - Milan, Italy
Duration: 22 Sep 201425 Sep 2014

Publication series

NameMechanisms and Machine Science
Volume21
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference9th IFToMM International Conference on Rotor Dynamics, 2014
Country/TerritoryItaly
CityMilan
Period22/09/1425/09/14

Keywords

  • Bow identification
  • Condition monitoring
  • Fault modelling
  • Ritz approach
  • Rotor dynamics

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