摘要
鉴于现有模型仅能计算片形填料在特定排列方式下的等效磁导率的不足,建立了一种计算片形填料在不同排列方式下的等效磁导率的模型。通过调控基本单元的边长比例,从理论上实现了片形填料在复合材料中的不同排列方式,进而采用磁偶极子模型得到了复合材料的等效磁导率。研究结果表明:随着片形填料体积分数的增加,复合材料的等效磁导率也随之增加;当片形填料在某方向上的间距减小时,复合材料在该方向上的等效磁导率增加。与其他经典模型相比,该模型的计算数据与实验数据更为接近,因此该模型可预测片形填料在不同排列方式下的等效磁导率,且准确度要高于其他经典模型的预测结果。
The existing models can only calculate the equivalent permeability of flake particles in particular arrangement,thus we established a model to calculate the equivalent permeability of flake particles in various arrangement.Through the regulation of the side length ratio of basic unit,different arrangements of flake particles were theoretically achieved in composite material,and the equivalent permeability of composite material were calculated by using the magnetic dipole model.The results show that the equivalent permeability increases with the increase of the volume fraction of flake particles,and when the space of flake particles reduces in one direction,the equivalent permeability increases in the corresponding direction.Compared with other classical models,the calculation results of the proposed model are closer to experimental values.Therefore,the proposed model can predict the equivalent permeability of flake particles in different arrangements,with a higher accuracy than that of most classical models.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2013年第3期642-647,共6页
High Voltage Engineering
基金
武器装备预研基金重点项目(9140A31030110JB3403)~~
