Analysis of Magnetic Properties of Soft Magnetic Composite Using Discrete Element Method

被引：22
|
作者：
Maruo, Akito [1 ]
Igarashi, Hajime [1 ]
机构：
[1] Hokkaido Univ, Grad Sch Informat Sci & Technol, Sapporo, Hokkaido 0600814, Japan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2019年 / 55卷 / 06期
基金：
日本学术振兴会;
关键词：
Anomaly factor; discrete element method (DEM); magnetic permeability; Ollendorff formula; soft magnetic composite (SMC);
D O I：
10.1109/TMAG.2019.2900287
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 soft magnetic composite (SMC), which consists of insulated iron particles, has been used for electric machines and devices. The magnetic permeability of SMC is underestimated when it is assumed that SMC is composed of homogeneous particles without magnetic contact. In this paper, SMC is modeled by the discrete element method, considering the inhomogeneity in particle size and contact among particles. It is shown that the measured permeability of SMC can be reproduced by considering these effects. Moreover, the frequency characteristics of SMC are evaluated by the proposed method, and the Ollendorff formula modified with an anomaly factor is introduced.
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页数：5
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