Research of the electromagnetic characteristics of shipborne mobile equipment based on the FDTD method

被引：0
|
作者：
Li B. [1 ]
Liu S. [1 ]
Zhang Y. [1 ]
机构：
[1] College of Automation, Harbin Engineering University
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2011年 / 32卷 / 07期
关键词：
Correction; Finite-difference time-domain method; Metal edge; Shipborne mobile equipment;
D O I：
10.3969/j.issn.1006-7043.2011.07.014
中图分类号：
学科分类号：
摘要：
The electromagnetic interference of shipborne mobile equipment must be evaluated correctly, because it cannot be degaussed by traditional methods. In this research, a shipborne crane was taken as an example, and the finite-difference time-domain(FDTD) method was applied to analyze the changes of the electromagnetic fields of the crane in the states of stow and operation. The average electrical parameters were adopted to improve the model accuracy of metal equipment. By changing the coordinates, modified difference equations were proposed to modify the metal edges that could not match the Yee grids. The algorithms were proved effectively by example comparisons. Finally, results indicate that the changes in the electric fields are 20~30 V/m, and the changes in the magnetic fields are 0.18~0.8 A/m in the state of stow and operation of the crane. The influence of these kinds of electromagnetic changes on the electromagnetic compatibility of ships cannot be ignored.
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页码：916 / 920
页数：4
相关论文
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