Analysis and Solution on Squeak Noise of Small Permanent-Magnet DC Brush Motors in Variable Speed Applications

被引：26

作者：

Li, Y. B. ^{[2
]}

Ho, S. L. ^{[1
]}

Fu, W. N. ^{[1
]}

Xue, B. F. ^{[2
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

[2] Johnson Elect Inc, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 10期

关键词：

Finite-element analysis; permanent magnet; PMDC motor; squeak noise; unbalanced magnetic radial force; ELECTRIC MACHINES; TORQUE; FORCE;

D O I：

10.1109/TMAG.2009.2024882

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The phenomenon of squeaking noise, based on noise spectra data during the running up of a small permanent-magnet DC (PMDC) brush motor, is analyzed. From the analysis, it is found that apart from some mechanical issues, the major contributor of the squeaking noise of PMDC is the unbalanced magnetic radial force. In this study, the unbalanced magnetic radial force is simulated using finite-element analysis (FEA). A simple but effective method to reduce the noise is proposed. The improved method is validated by test results.

引用

页码：4752 / 4755

页数：4

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