基于面磁矩分布的潜艇磁场计算  

Submarine magnetic field calculation based on surface magnetic moment distribution

作　　者：刘辉 钟炀 吴桐[2] 赵昊 LIU Hui;ZHONG Yang;WU Tong;ZHAO Hao(Kunming Shipborne Research and Test Center,Kunming 650001,China;No.92485 Unit of PLA,Dalian 116000,China)

机构地区：[1]昆明船舶设备研究试验中心,云南昆明650001 [2]中国人民解放军92485部队,辽宁大连116000

出　　处：《舰船科学技术》2023年第6期28-32,共5页Ship Science and Technology

基　　金：装备发展部技术基础项目(JZX7J202104BZ007700);国防基础性科研院所稳定支持项目(110032019004)。

摘　　要：潜艇磁场的单个磁偶极子模型,在计算外空间磁场分布时与实际情况误差较大,为提高模型准确度,本文优化潜艇磁场的计算方法,将潜艇磁矩看作均匀分布于壳体上的无限个磁偶极子,提出并定义了面磁矩密度假设。通过求解潜艇表面上磁矩微分元在场点的磁场积分,得到基于面磁矩分布的潜艇磁场计算数学模型。经过对比分析表明,该模型能够更准确地描述潜艇磁场的空间分布特性,以及潜艇磁异常随着探测距离的变化情况。The single magnetic dipole model of the submarine magnetic field has a large error with the actual situation when calculating the magnetic field distribution in outer space.In order to improve the accuracy of the model,the calculation method of the submarine magnetic field is optimized in this paper,and the magnetic moment of the submarine is regarded as a uniform distribution in There are infinite magnetic dipoles on the hull,and the assumption of surface magnetic moment density is proposed and defined.By solving the magnetic field integral of the magnetic moment differential element on the submarine surface at the field point,the mathematical model of the submarine magnetic field calculation based on the surface magnetic moment distribution is obtained.The comparative analysis shows that the model can more accurately describe the spatial distribution characteristics of the submarine's magnetic field and the variation of the submarine's magnetic anomaly with the detection distance.

关 键 词：潜艇磁场 椭球体模型 面磁矩密度 磁偶极子 

分 类 号：U674.76[交通运输工程—船舶及航道工程]