Magnetostriction of grain-oriented electrical steel sheet under temperature gradient

被引：0
|
作者：
Okazaki, Y [1 ]
Yanase, S [1 ]
Niwa, H [1 ]
Tani, Y [1 ]
机构：
[1] Gifu Univ, Gifu, Japan
来源：
ELECTRICAL ENGINEERING IN JAPAN | 2004年 / 149卷 / 03期
关键词：
magnetostriction; grain-oriented electrical steel sheet; temperature distribution; thermal stress;
D O I：
10.1002/eej.20003
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 was measured in 3% Si-Fe grain-oriented electrical steel under a nonuniform temperature distribution with a 5 to 10 degreesC difference in a single sheet measuring 100 x 500 mm. A temperature difference of 0.2 degreesC/mm in the sheet increased magnetostriction four times as much as in the case of a uniformly elevated temperature. Compressive stress induced by nonuniform thermal expansion enhances magnetostriction greatly; this effect was analyzed by experiment and computer simulation. (C) 2004 Wiley Periodicals, Inc.
引用
收藏
页码：8 / 14
页数：7
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