Vibrations of rotating electrical machines due to magnetomechanical coupling and magnetostriction

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    Abstract

    This paper presents a method to calculate the vibrations of rotating electrical machines when the magnetostriction and the magnetomechanical coupling are of interest. The method is applied to two kinds of machines (cage induction and synchronous machine). The computations use dynamic numerical models for both magnetic and displacement fields in the machines. Moreover, the method is experimentally validated with a special device. The results of the computations and measurements show that the magnetostriction affects the vibrations of both machines, whereas the magnetomechanical coupling is considerable only in large stators
    Original languageEnglish
    Pages (from-to)971-974
    JournalIEEE Transactions on Magnetics
    Volume42
    Issue number4
    DOIs
    Publication statusPublished - 2006
    MoE publication typeA1 Journal article-refereed

    Keywords

    • electric machines
    • magnetomechanical coupling
    • magnetostriction
    • vibration

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