Analysis of Magnetic Properties of Soft Magnetic Composite Using Discrete Element Method
Analysis of Magnetic Properties of Soft Magnetic Composite Using Discrete Element Method
复制标题
软磁复合材料磁性能的离散元法分析
DOI：
10.1109/tmag.2019.2900287
复制
发表时间：
2019
影响因子：
2.1
通讯作者：
H. Igarashi
中科院分区：
文献类型：
--
作者：
A. Maruo;H. Igarashi
由绝缘铁颗粒组成的软磁复合材料（SMC）已被用于电机和设备。当假定SMC是由无磁接触的均匀颗粒组成时，低估了SMC的磁导率。本文采用离散单元法对SMC进行了建模，考虑了颗粒尺寸的不均匀性和颗粒间的接触。结果表明，通过考虑这些影响，可以重现SMC的磁导率测量。此外，SMC的频率特性的评估所提出的方法，并与异常因子修改的Ollendorff公式。
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.