船舶上空磁场探讨  

Study on the Characteristics of Space Magnetic Field above Ship Hull

作　　者：吴子瑕[1] Wu Zixia(China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]中国舰船研究设计中心,武汉430064

出　　处：《船电技术》2020年第S01期113-116,共4页Marine Electric & Electronic Engineering

摘　　要：为了掌握船舶上半球磁场防护能力,基于电磁理论,通过建立典型船舶磁场模型,采用数字仿真掌握了船舶上半球磁场特性。结论表明,在以主甲板为中心对称平面上,感应磁场下半球磁场较上半球而言,其纵向、横向和垂向感应磁场分量幅值分别约为上半球的2、3和4倍;同时在传统的消磁绕组补偿技术的基础上,对上半球感应磁场进行了研究,发现其纵向、横向、垂向感应磁场补偿效果分别可接近50%左右。In order to find out the space magnetic field defense capability for ship,on the basis of electromagnetic theory,a typical model is built to analyze the characteristics of magnetic field in upper space around the hull using digital simulation.The numerical calculation results show that the value of magnetic field in upper space is smaller compared with in lower space,and that the values of longitudinal,horizontal and vertical induced magnetic fields in lower space are 1,2 and 3 times larger than those in the upper space respectively.The compensation effects for the magnetic fields under these three situations are approximately up to 50%.

关 键 词：消磁 感应磁场 消磁绕组 

分 类 号：U665.18[交通运输工程—船舶及航道工程]