牵引异步电机气动和电磁混合噪声预测研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (14) : 284-292.

论文

牵引异步电机气动和电磁混合噪声预测研究

孙艳红1，张伟2，王文庆2，朱一乔2，邱毅1，郑旭1

作者信息 +

rediction and study of the aerodynamic and electromagnetic mixed noise of the traction asynchronous motor

SUN Yanhong1, ZHANG Wei2, WANG Wenqing2, ZHU Yiqiao2, QIU Yi1, ZHENG Xu1

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文章历史 +

摘要

高速列车牵引异步电机在高转速下的噪声主要由气动噪声和电磁噪声组成，且前者为主导成分。本文为准确地预测该类型电机高转速下的气动和电磁混合噪声特性，首先建立了电机气动声源的仿真计算模型，包括基于计算流体动力学的流场计算和Lighthill声类比的声场计算；其次建立了电磁振动的计算模型，其中包含了Maxwell电磁场计算和基于模态叠加法的谐响应分析；最后通过有限元法和边界元法建立电机气动和电磁混合噪声的计算模型，最终得到电机混合噪声在各测点的总声压级和电机的声功率级，并与试验结果进行对比。结果表明，在4000 r/min和5600 r/min两个转速下的仿真计算的声功率级与试验值差距不超过0.6 dB(A)，各测点总声压级与试验值接近，证明混合噪声的计算模型能够准确有效地预测牵引异步电机气动和电磁混合噪声。

Abstract

The noise of a traction asynchronous motor in high-speed train at high speed is mainly composed of aerodynamic noise and electromagnetic noise, and the former is the dominant. In order to accurately predict the aerodynamic and electromagnetic noise characteristics of this kind of motor at high speed, a simulation calculation model of the motor aerodynamic noise source is firstly established, including flow field calculation based on computational fluid dynamics and sound field calculation based on Lighthill analogy method. Secondly, a calculation model of electromagnetic vibration is established, which includes Maxwell electromagnetic field calculation and harmonic response analysis based on modal superposition method. Finally, the finite element method and boundary element method are used to establish the simulation calculation model of mixed noise of aerodynamic and electromagnetic noise. And the total sound pressure levels at all test points and sound power levels of motor noise are obtained and compared with those from experiments. The results show that the differences of sound power level between the simulation and experiment value are less than 0.6 dB(A) at 4000 r/min and 5600 r/min speeds, and the values of overall sound pressure levels at all test points are close to those from experiments, which proves that the calculation model of mixed noise can accurately and effectively predict the mixed noise of aerodynamic and electromagnetic noise of the traction asynchronous motor.

导出引用

孙艳红1，张伟2，王文庆2，朱一乔2，邱毅1，郑旭1. 牵引异步电机气动和电磁混合噪声预测研究[J]. 振动与冲击, 2024, 43(14): 284-292

SUN Yanhong1, ZHANG Wei2, WANG Wenqing2, ZHU Yiqiao2, QIU Yi1, ZHENG Xu1. rediction and study of the aerodynamic and electromagnetic mixed noise of the traction asynchronous motor[J]. Journal of Vibration and Shock, 2024, 43(14): 284-292

参考文献

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