Effect of Magnetostriction Anisotropy in Nonoriented Electrical Steels on Deformation of Induction Motor Stator Cores

被引：35

作者：

Somkun, Sakda ^{[1
]}

Moses, Anthony J. ^{[1
]}

Anderson, Philip I. ^{[1
]}

机构：

[1] Cardiff Univ, Wolfson Ctr Magnet, Sch Engn, Cardiff CF24 3AA, S Glam, Wales

来源：

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

关键词：

Acoustic noise; anisotropy; deformation; induction motors; magnetostriction; nonoriented (NO) electrical steels; vibrations; MACHINES;

D O I：

10.1109/TMAG.2009.2022320

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：

Magnetostriction in nonoriented (NO) electrical steels is a harmful source of vibration and acoustic noise in electrical machines. It is far more anisotropic than specific power loss, which results in more complexity in prediction of the vibration and acoustic noise. An investigation of the anisotropy in magnetostriction and mechanical elastic properties of a NO steel is presented in this paper. Measurements of deformation in the stator teeth of an induction motor model core were conducted in order to study the effect of the magnetostriction anisotropy. Strain due to Maxwell forces in the air gap was calculated and compared with the measured deformation. Measurement results indicate that anisotropic magnetostriction has a great impact on unsymmetrical deformation of the stator teeth of induction motor cores.

引用

页码：4744 / 4747

页数：4

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