车用永磁同步电机电磁振动噪声仿真和实验研究

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (12) : 136-142.

论文

苏辉，张立军，孟德建，徐杰

作者信息 +

Simulation and experimental analysis of electromagnetic vibration and noise for vehicle permanent magnetic synchronous electrical motors

SU Hui，ZHANG Lijun，MENG Deijian，XU Jie

Author information +

文章历史 +

摘要

研究了全负荷工况下8极48槽车用永磁同步电机电磁振动噪声仿真建模方法，并通过消声室台架实验验证了研究方法的有效性。首先，建立考虑材料各向异性特性的定子铁芯和系统模型，分析各向异性材料参数灵敏度，并利用激振器模态敲击实验验证仿真模型；其次，针对永磁同步电机和电驱动桥二合一系统，建立电磁-结构-声学多物理场耦合模型，基于三维分布式电磁力激励，仿真再现了全负荷加速工况下电机电磁辐射噪声，并分析电磁噪声特征；最后，利用消声室台架实验结果，验证了永磁同步电机电磁-结构-声学多物理场耦合模型的准确性，重点阐明2000rpm附近48阶噪声峰值点产生机理，研究成果可进一步用于车用永磁同步电机设计开发和电磁振动噪声产生机理研究。

Abstract

Electromagnetic vibration and noise simulation method of 8 poles-48 slots vehicle permanent magnetic synchronous electrical motor are analyzed on wide open throttle (WOT) condition, which is then validated by bench test in anechoic chamber. Firstly, anisotropic material stator core and stator system model is established, and anisotropic material parameter sensitivity is carried out. Modal results of stator system are validated by modal impact test. Secondly, for 2in1 system including permanent magnetic synchronous electrical motor and electrical drive axle, electromagnetic, structural and acoustic multi-physical coupled model is built. Based on three dimensional distributed electromagnetic force excitation, electromagnetic noise is predicted on WOT and accelerating condition and electromagnetic noise characteristics are analyzed. Finally, electromagnetic, structural and acoustic multi-physical coupled model of permanent magnetic electrical motor is validated by bench test results in anechoic chamber. The mechanism of 48th order cut peak level problem at 2000rpm is clarified emphatically. The research achievements will contribute to vehicle permanent magnetic synchronous electrical motor design and mechanism analysis of electromagnetic vibration and noise.

导出引用

苏辉，张立军，孟德建，徐杰. 车用永磁同步电机电磁振动噪声仿真和实验研究[J]. 振动与冲击, 2022, 41(12): 136-142

SU Hui，ZHANG Lijun，MENG Deijian，XU Jie. Simulation and experimental analysis of electromagnetic vibration and noise for vehicle permanent magnetic synchronous electrical motors[J]. Journal of Vibration and Shock, 2022, 41(12): 136-142

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