Modeling 2-D Magnetostriction in Nonoriented Electrical Steels Using a Simple Magnetic Domain Model

被引：25
作者：
Moses, Anthony J. [1 ]
Anderson, Philip I. [1 ]
Somkun, Sakda [2 ]
机构：
[1] Cardiff Univ, Cardiff Sch Engn, Wolfson Ctr Magnet, Cardiff CF10 3XQ, S Glam, Wales
[2] Naresuan Univ, Sch Renewable Energy Technol, Phitsanulok 65000, Thailand
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 05期
关键词：
2-D magnetization; acoustic noise; electrical machine cores; electrical steels; magnetic anisotropy; magnetostriction; vibration; ANISOTROPY; MACHINES; FORCES; VIBRATIONS; NOISE; CORES;
D O I：
10.1109/TMAG.2015.2402111
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 electrical steel is a source of acoustic noise and vibration of rotating electrical machine cores. Magnetostriction of nonoriented (NO) steel under 2-D magnetization is much greater than that under unidirectional, alternating magnetization. An analytical interpretation of the relevance of 2-D magnetostriction and magnetostrictive anisotropy of NO steel based on a simple magnetic domain model is presented. The analysis helps explain the effect of anisotropy on 2-D magnetostriction measurements made on commercial NO steels with different anisotropy factors. The magnitude of the 2-D magnetostriction is shown to depend on the magnetostrictive anisotropy and magnetic Poisson's ratio.
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页数：7
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