Magnetostrictive Properties of Electrical Steel Sheet With Rotational Magnetization

被引：0
|
作者：
Gong Y. [1 ]
Zhang Y. [1 ]
Li Q. [1 ]
Yang S. [2 ]
Zhang D. [1 ]
Ren Z. [1 ]
Xie D. [1 ]
机构：
[1] Key Laboratory of Special Motor and High-Voltage Apparatus, Shenyang University of Technology, Ministry of Education, Shenyang, 110870, Liaoning Province
[2] Chaoyang Longmarch Tyre Co., Ltd., Chaoyang, 122009, Liaoning Province
来源：
| 1600年 / Chinese Society for Electrical Engineering卷 / 37期
基金：
中国国家自然科学基金;
关键词：
Electrical steel; Magnetostriction; Principal strain; Rotating magnetization; Three-axial strain gauge;
D O I：
10.13334/j.0258-8013.pcsee.160979
中图分类号：
学科分类号：
摘要：
Due to the magnetostrictive effect of electrical steel sheet, the deformation occurs in high-power motor stator core, which intensifies its vibration noise. In recent years, with continuous development of experimental test technique, the magnetostrictive measurement and property study on electrical steel sheet have been carried out overseas, but the relevant research in China is still in the initial stage. In order to investigate the magnetostrictive property of electrical steel sheet in rotating magnetic field deeply, the rotational magnetostrictive measurement system for a single electrical steel sheet was developed based on a triaxial strain gauge. The periodic variations of magnetostrictive principal strain vector were studied under various elliptical magnetization trajectories with different axial ratios, inclination angles and magnetic flux density values. A database file to analyze the magnetostrictive effect of motor core was built, and a 3-D interpolation surfaces was employed to describe the relationship between the rotational magnetization and magnetostriction. A numerical analysis method calculating the magnetostriction effect of motor core was presented, and taking a ring core model as an example, the validation of this method was verified by an experimental test. The research shows that the rotational magnetostrictive strain in an electrical steel sheet is bigger than alternating one, and increases with the increase of circular shape degree of magnetization. The test data and rotational magnetostrictive property analysis mentioned above provide a reference for the research of reducing the vibration and noise of motor. © 2017 Chin. Soc. for Elec. Eng.
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页码：4826 / 4833
页数：7
相关论文
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