Structural modelling of an induction machine stator

Janne Roivainen, Kari Kantola, Paul Klinge

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


    The induction machine stator plays a leading role in delivering the electromagnetic vibration energy from the air gap to the machine housing. In the range of shaft heights larger than 300 millimetres or so the 3D finite element models become too large resulting in long computational times and too low frequencies. For this reason an alternative modelling method is proposed in this paper. The method utilises a Rayleigh-Ritz beam function approach where the stator is treated as a thick orthotropic cylinder with free ends. In this approach the material parameters associated with the elasticity matrix are extracted by fitting the model to measured natural frequencies. The results show that a laminated core structure of the stator cannot be considered as an isotropic steel cylinder.
    Original languageEnglish
    Title of host publication9th International Congress on Sound and Vibration ICSV9
    PublisherInternational Institute of Acoustics and Vibration (IIAV)
    Number of pages7
    Publication statusPublished - 2002
    MoE publication typeNot Eligible
    Event9th International Congress on Sound and Vibration, ICSV9 - Orlando, United States
    Duration: 8 Jul 200211 Jul 2002


    Conference9th International Congress on Sound and Vibration, ICSV9
    Country/TerritoryUnited States


    • induction machine
    • stator
    • material model


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