The Multi-Physics Coupling Analysis Based on Electro-Magnetic, Structural and Acoustic Characters for a Drive Motor in EV

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The Multi-Physics Coupling Analysis Based on Electro-Magnetic, Structural and Acoustic Characters for a Drive Motor in EV

The Multi-Physics Coupling Analysis Based on Electro-Magnetic, Structural and Acoustic Characters for a Drive Motor in EV

Zeng, Jinling / Piao, Yingzi / Lu, Bingwu / Huo, Fuxiang / Zhang, Qun

According to generating mechanism of electromagnetic noise from the permanent magnet synchronous motor on EV, this paper proposed how to use a multi-physics coupling analysis based on the electromagnetic, structural and acoustic fields of the motor to estimate the noise and vibration characteristics. Firstly, the two-dimensional transient electromagnetic field of the motor was calculated by using the step finite element method, and the electromagnetic excitation force on the surfaces of the stator in both frequency and time domain are obtained; Then, based on three-dimensional structure of the motor assembly, the simulation of the entire system natural frequencies and mode shapes was executed, and coupling the electromagnetic field analysis results of the motor, the vibration velocity level of the motor surface was achieved through the frequency response analysis. Finally, the coupled three-dimensional acoustic boundary element model was employed to calculate the motor acoustic radiation. The experimental results demonstrated that this multi-physics coupling numerical analysis method can effectively predict the electromagnetic noise in the motor design phase and help low-noise motor design and development.

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Title :

The Multi-Physics Coupling Analysis Based on Electro-Magnetic, Structural and Acoustic Characters for a Drive Motor in EV

Contributors:

Zeng, Jinling (author) / Piao, Yingzi (author) / Lu, Bingwu (author) / Huo, Fuxiang (author) / Zhang, Qun (author)

Published in:

FISITA, World Automotive Congress, 2012 ; 399-411

Lecture Notes in Electrical Engineering ; 195

Publication date :

2012

Size :

13 Seiten

ISBN :

978-3-642-33835-9 , 978-3-642-33834-2

ISSN :

DOI :

https://doi.org/10.1007/978-3-642-33835-9_38

Type of media :

Conference paper

Type of material :

Print

Language :

English

Keywords :

Permanentmagnetmotor , Akustik , Antriebsmotor , elektromagnetisches Feld , Schwingungsanalyse , elektromagnetische Kraft , Eigenschwingung , Geschwindigkeit , akustisches Feld , Elektrofahrzeug , Finite-Elemente-Methode , Zeitbereich , dreidimensionale Struktur , numerische Methode

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