多媒质虚拟媒质法及其在地下通信电缆电磁屏蔽计算中的应用  

MULTI-MEDIA FICTITIOUS METHOD AND ITS APPLICATION IN ELECTROMAGNETIC SHIELDING CALCULATIONS FOR THE UNDERGROUND TELECOMMUNICATION CABLE

作　　者：邹军[1] 袁建生[1] 马信山[1] 

机构地区：[1]清华大学电机系基本电工教研组,北京100084

出　　处：《中国电机工程学报》2000年第5期30-33,共4页Proceedings of the CSEE

摘　　要：考虑媒质局部不均匀的特点 ,建立了多媒质虚拟媒质法 ,并应用该方法进行地下通信电缆电磁屏蔽特性的分析计算。对于任意形状的局部不均匀多媒质区域 ,有限元剖分仅限于局部区域 。A fictitious media method is presented, which takes locally non uniform media characters into account in the multi-media region. The pertinent electromagnetic shielding analysis of underground telecommunication cables is carried out by means of this numerical algorithm. For an arbitrary profile consisting of several media, the finite element meshing is merely confined to the fictitious media region, so the prominent advantages of this method are requiring much less computer memories and saving large amount of computing time.

关 键 词：电磁屏蔽 计算 地下通信电缆 多媒质虚拟媒质法 

分 类 号：TM153.5[电气工程—电工理论与新技术] TN913.321[电子电信—通信与信息系统]