An efficient boundary-type equivalent source method for the prediction of noise radiated by power capacitors

被引：0

作者：

He Q. ^{[1
]}

Nie J. ^{[1
]}

Liu W. ^{[2
]}

Zheng C. ^{[2
]}

Bi C. ^{[2
]}

Zhao S. ^{[3
]}

机构：

[1] State Key Laboratory of Avanced Power Transmission Technology, Beijing

[2] Institute of Sound and Vibration Research, Hefei University of Technology, Hefei

[3] State Grid Jinhua Power Supply Company, Jinhua

来源：

Zheng, Changjun | 2020年 / Chinese Vibration Engineering Society卷 / 39期

关键词：

Burton-Miller method; Equivalent source method; Fast multipole method; Power capacitor; Prediction of radiated noise;

D O I：

10.13465/j.cnki.jvs.2020.24.005

中图分类号：

学科分类号：

摘要：

The noise control of power capacitors has been drawing more and more attentions. Accurate and efficient prediction of noise is quite helpful for the reduction of noise radiated by power capacitors. To this end, this paper presents a fast boundary-type equivalent source method which can be used to predict the noise radiated by power capacitors. In this method, the equivalent sources are directly positioned at the surface of vibrating structures so as to avoid the difficulty of deciding the positions of equivalent sources in traditional equivalent source methods. The fast multipole method is also used to accelerate the computation and reduce the memory requirement. Moreover, the Burton-Miller-type mixed-layer potential method is further used to conquer the non-unique solution problem which may be encountered in traditional equivalent source methods. Numerical examples were employed to demonstrate the accuracy and efficiency of the method, and also the big potential in the prediction of noise radiated by power capacitors. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.

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页码：32 / 38

页数：6

共 15 条

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