复合材料电磁特性的非均匀时域有限差分法分析  

ANALYSIS OF ELECTROMAGNETIC PROPERTIES OF COMPOSITES BY UNEVEN FINITE-DIFFERENCE TIME-DOMAIN METHOD

作　　者：朱正吼[1] 邱伟娟[1] 

机构地区：[1]南京航空航天大学

出　　处：《兵器材料科学与工程》2001年第2期30-33,共4页Ordnance Material Science and Engineering

摘　　要：介绍了用非均匀时域有限差分方法计算复合材料电磁特性问题的基本原理、数学模型、网格划分、边界条件与初始条件等。文章着重针对解决材料结构为各向异性时的电磁特性计算问题。最后 ,利用非均匀时域有限差分方法求解了 [0 0 ]n 玻璃纤维 /环氧树脂层合板在 TEM波入射时的散透射高频电磁波的情况 。The basal principle,math-model,element-dividing,boundary conditions and initial conditions of calculating the electromagnetic properties of composites by the uneven finite-difference time-domain method are presented.The calculating problem of the electromagnetic properties of composites with anisotropic structure was studied emphatically.At last,the scattering and transmitting properties of [0 0] n glass fiber /epoxy composite board for high-frequency electromagnetic wave were evaluated by the uneven finite-difference time-domain method.The calculated results show that the radiation intensity of the transmission wave has direct relationship to the area-fraction of the fibers on the section,that is perpendicular to the propagating direction of the wave,of the composite board.

关 键 词：时域有限差分法 复合材料 电磁特性 各向异性结构 FD-TD法 

分 类 号：TB33[一般工业技术—材料科学与工程]