摘要
水下目标磁化特性研究是水下探测的基础性工作。基于COMSOL Multiphysics软件虚拟仿真的方法,对水下目标的磁化进行了系统的研究。结果表明,背景磁场频率的不同会导致目标的磁化磁极发生改变;目标磁导率会影响磁感应强度模随背景磁场频率的变化关系。进一步仿真分析得出,频率f<7764 Hz时目标的磁化主要受静态屏蔽作用影响,频率f>7764 Hz时主要受趋肤效应作用影响。通过虚拟仿真的方法,分析了水下目标磁化的作用机理,可为水下磁探测的设计提供参考。
Research on magnetization characteristics of the underwater target is the basic work of underwater detection.Based on COMSOL multiphysics simulation method,the magnetization of underwater target has been systematically studied in this paper.The result shows that the frequency of background magnetic field leads to the change of the magnetic pole of the target.The relationship between the target’s magnetization and the frequency of background magnetic field is affected by the permeability of the target.By the further results,it can be concluded that,when the frequency is less than 7764 Hz,magnetization is mainly influenced by static shielding effect,while by skin effect when the frequency is greater than 7764 Hz.Based on virtual simulation method,the mechanism of underwater target’s magnetization has been systematically analyzed in this paper,which can provide useful guidance on the design of the magnetic detection of underwater targets.
作者
刘健
高永浩
魏宝君
王殿生
李代林
LIU Jian;GAO Yonghao;WEI Baojun;WANG Diansheng;LI Dailin(College of Science,China University of Petroleum(East China),Qingdao 266580,Shandong,China)
出处
《实验室研究与探索》
CAS
北大核心
2020年第7期101-105,共5页
Research and Exploration In Laboratory
基金
山东省研究生教育质量提升项目(SDYY18030)
中国石油大学(华东)教学改革项目(JY-B201855,QN201723)。
关键词
水下目标
探测
时变磁场
磁化
underwater target
detection
time-varying magnetic field
magnetization
