Method for acquisition of orthotropic material parameters and calculation of modal frequencies in permanent magnet synchronous motor

Abstract This article presents a novel method for fastly obtaining orthotropic material parameters in permanent magnet synchronous motor. First, a theoretical model of the equivalent single cylindrical shell is introduced with three orthotropic material parameters by considering the orthotropic char...

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Bibliographic Details
Main Authors: Daolu Li, Ying Xie, Wei Cai, Fang Zhang
Format: Article
Language:English
Published: Wiley 2023-08-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12325
Description
Summary:Abstract This article presents a novel method for fastly obtaining orthotropic material parameters in permanent magnet synchronous motor. First, a theoretical model of the equivalent single cylindrical shell is introduced with three orthotropic material parameters by considering the orthotropic characteristics of the motor. Then, the relationship of three orthotropic material parameters and the axial mode order m, the radial mode order n and modal frequency f is established. On this basis, an analytical method with m = 0 is proposed to acquire three values, and its adaptability is pointed out. Meanwhile, based on the above obtained orthotropic material parameters, the calculation method of modal frequencies is presented. Finally, the modal test and finite‐element method are implemented to verify the rationality of the proposed method.
ISSN:1751-8660
1751-8679