Online roundness error identification and model-based monitoring for rotors

Markus Rossner, Thomas Thuemmel, Heinz Ulbrich

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

1 Scopus citations

Abstract

Condition monitoring is vital for operating rotors safely. The application of model-based approaches allows a more detailed diagnosis than signal-based methods. Yet, model-based methods require identifying the properties of the undamaged rotor accurately. Measurements at single parts and modal analysis help to verify the rotor model. When monitoring rotor displacements with eddy-current sensors, also roundness errors must be considered. For roundness identification at operation speed, a method based on three non-orthogonal eddy-current sensors is presented. Several experiments show that the measurement data can be split into the contents rotor orbit and roundness error. The extracted orbit is evaluated by an academic model-based monitoring system developed for our test rig. Currently, it can evaluate unbalance, bow, misalignments and/or stator contact.

Original languageEnglish
Title of host publicationVibration Engineering and Technology of Machinery - Proceedings of VETOMAC X, 2014
EditorsJyoti K. Sinha
PublisherKluwer Academic Publishers
Pages743-752
Number of pages10
ISBN (Electronic)9783319099170
DOIs
StatePublished - 2015
Event10th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2014 - Manchester, United Kingdom
Duration: 9 Sep 201411 Sep 2014

Publication series

NameMechanisms and Machine Science
Volume23
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference10th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2014
Country/TerritoryUnited Kingdom
CityManchester
Period9/09/1411/09/14

Keywords

  • Condition monitoring
  • Model verification
  • Rotating machinery
  • Roundness error

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