Vibration measurements for validation of electromechanical rotor model for cage induction motor

Timo Holopainen, Seppo Aatola, Antero Arkkio

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

3 Citations (Scopus)

Abstract

Eccentric rotor motion of an electric motor induces an unbalanced magnetic pull. This eccentricity force may couple the electromagnetic system with the flexural vibration modes of the shaft. Recently, a simple parametric model was presented for this electromechanical interaction. The aim of this study was to produce experimental data for the validation of this electromechanical rotor model. A standard six-pole 18 kW induction motor was equipped with a long flexible shaft for the experiments. The frequency and damping of the first flexural rotor mode was identified in unloaded steady-state operation. The limit-cycle vibrations and sub-critical unstability was observed in measurements.
Original languageEnglish
Title of host publicationEighth International Conference on Vibrations in Rotating Machinery
PublisherInstitution of Mechanical Engineers
Pages423-432
ISBN (Print)978-1-86058-447-3
Publication statusPublished - 2004
MoE publication typeA4 Article in a conference publication
Event8th International Conference on Vibrations in Rotating Machinery (IMechE) - University of Wales, Swansea, United Kingdom
Duration: 7 Sept 20049 Sept 2004

Publication series

SeriesIMechE Conference Transactions
Number2/2004
ISSN1356-1448

Conference

Conference8th International Conference on Vibrations in Rotating Machinery (IMechE)
Country/TerritoryUnited Kingdom
CitySwansea
Period7/09/049/09/04

Keywords

  • induction motor
  • vibration

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