Publication result detail

Detection of Eccentricity and Bearings Fault Using Stray Flux Monitoring

VÍTEK, O.; JANDA, M.; HÁJEK, V.; BAUER, P.

Original Title

Detection of Eccentricity and Bearings Fault Using Stray Flux Monitoring

English Title

Detection of Eccentricity and Bearings Fault Using Stray Flux Monitoring

Type

Paper in proceedings (conference paper)

Original Abstract

The article describes the possibilities of employment of external magnetic field for detection of rotor eccentricity and for bearing fault diagnosis. Proposed method uses the magnetic flux density in proximity of induction motor as a diagnostic signal and it reaches the relatively high sensitivity in case of rotating air gap asymmetry represented by dynamic eccentricity. Since the bearing fault is the most frequent type of failure, the feasibility of applying this method is investigated. The results of experimental tests are introduced, including the motors with dynamic eccentricity and with artificially damaged bearing on the inner race. Both the stray flux and stator current are measured and compared in frequency domain.

English abstract

The article describes the possibilities of employment of external magnetic field for detection of rotor eccentricity and for bearing fault diagnosis. Proposed method uses the magnetic flux density in proximity of induction motor as a diagnostic signal and it reaches the relatively high sensitivity in case of rotating air gap asymmetry represented by dynamic eccentricity. Since the bearing fault is the most frequent type of failure, the feasibility of applying this method is investigated. The results of experimental tests are introduced, including the motors with dynamic eccentricity and with artificially damaged bearing on the inner race. Both the stray flux and stator current are measured and compared in frequency domain.

Keywords

Ball bearings, Fault diagnosis, Fault detection, Induction motors

Key words in English

Ball bearings, Fault diagnosis, Fault detection, Induction motors

Authors

VÍTEK, O.; JANDA, M.; HÁJEK, V.; BAUER, P.

RIV year

2012

Released

06.09.2011

Publisher

IEEE

Location

Bologna, IT

ISBN

978-1-4244-9302-9

Book

Proceedings of the 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives

Pages from

456

Pages to

461

Pages count

6

URL

http://ieeexplore.ieee.org

BibTex

@inproceedings{BUT72774,
  author="Ondřej {Vítek} and Marcel {Janda} and Vítězslav {Hájek} and Pavol {Bauer}",
  title="Detection of Eccentricity and Bearings Fault Using Stray Flux Monitoring",
  booktitle="Proceedings of the 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives",
  year="2011",
  pages="456--461",
  publisher="IEEE",
  address="Bologna, IT",
  doi="10.1109/DEMPED.2011.6063663",
  isbn="978-1-4244-9302-9",
  url="http://ieeexplore.ieee.org"
}