摘要
以时谐电磁场麦克斯韦方程组及多层媒介条件为基础,引入了电磁场相对性原理及洛仑兹时空变换公式,推导了运动垂直时谐电偶极子在n层均匀、线性、各相同性导电介质中的电磁场分布计算公式。该公式可用来对不同情况下浅海中电磁场进行建模。最后,以浅海中多桨推进运行舰船为仿真对象,建立了浅海条件下三层媒介模型,对运动舰船产生的轴频电磁场进行仿真计算,仿真结果表明了论文推导的计算方法的有效性。
On the base of harmonic electromagnetic MAXWELL equations and the vector conditions in the n-layer medium,And also on the base of the basic principle of the special theory of relativity and lorentz transformation,series of general expressions of electro-magnetic field of a moving,harmonic time varying,vertical electric dipole,embedded in surface of the first conducting medium of a stratified medium is composed of n,linear,homogenous conducting layers.The general expression can be used to model the electro-magnetic field of different situation in shallow sea.Finally,this paper model the EM field of poly-propeller ship as three-layer model in shallow sea,the simulation result shows the effectiveness of the calculation method proposed in this paper.
作者
田永民
李忠猛
TIAN Yongmin;LI Zhongmeng(No.92515 Troops of PLA,Huludao 125000;Naval University of Engineering,Wuhan 430033)
出处
《舰船电子工程》
2018年第4期118-121,共4页
Ship Electronic Engineering
关键词
多层媒介
时谐偶极子
轴频
电磁场
多桨推进舰船
multi-layers medium
time-harmonic electric dipole
shaft-frequency
EM field
poly-propeller vessel
