Vibration prediction enhancement in permanent magnet synchronous machines (PMSMs) through frequency-dependent damping is proposed in this work. Rayleigh damping coefficients are used to implement frequency-dependent damping. Mass- and stiffness-dependent Rayleigh damping coefficients are determined by utilizing frequency response functions (FRFs) from the impact hammer test for two prototype 12-slot 10-pole (12s10p) PMSM designs and are used during vibration prediction rather than the assumption of constant damping. Predicted vibration spectra are experimentally validated through run-up tests of two prototypes. A damping coefficient prediction strategy is proposed to enable fast vibration prediction of future builds and to reduce the dependency of accurate vibration prediction on the availability of a prototype. The damping prediction method uses the change in mass, natural frequency, and stiffness from one design to another to predict the Rayleigh damping coefficients of a future build. The proposed damping prediction method is experimentally validated using a third prototype.


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    Title :

    Modeling of Frequency-Dependent Damping for Fast Vibration Prediction in Permanent Magnet Synchronous Machines


    Contributors:


    Publication date :

    2023-03-01


    Size :

    6481483 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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