舰船水下标量电位分布特征研究  

Research on the Underwater Electric Potential Distribution of a Ship

作　　者：罗晓强[1] 陈聪[2] 陈勇[1] 

机构地区：[1]中国人民解放军91388部队 [2]海军工程大学理学院

出　　处：《武汉理工大学学报》2012年第11期48-52,57,共6页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51109215)

摘　　要：为深入掌握舰船水下标量电位分布特征,以其基本模拟体——电偶极子为对象,着重对海洋环境电导率分布、源强度、测量深度、界面等因素对水平直流电偶极子所产生的水下标量电位的影响进行数值仿真分析和实验室测量研究。通过对比分析,表明:海洋环境电导率不影响水下标量电位的区域分布特征,但影响标量电位大小,海水电导率越小,标量电位的值越大,但并不是简单的反比关系;不同测量深度平面上标量电位的大小及其区域分布特征均有变化,场源深度差越小,标量电位越大,同时峰值点位置相对源点的水平偏离越小;标量电位的大小与电偶极子的偶极矩成正比;界面对标量电位的影响不可忽略,空气-海水界面的存在增强了水下标量电位。研究结果可为舰船水下电磁场的推演和预报、舰船结构的电磁隐身设计、水中兵器电磁引信设计提供参考。In order to grasp the distribution rules of the underwater electric potential of a ship, its basic simulated ob ject, i.e. a horizontal IX2 dipole located in seawater, is taken as research object, and the influences of the various factors on the underwater electric potential are analyzed by means of numerical simulation and measurement research in laborato ry, such as the electrical conductivity of marine environment, the moment of electric dipole, the depth of field point, and so on. By means of comparing and analyzing, the research results show that： the electrical conductivity of marine envi- ronment will produce an effect on the value of the underwater electric potential but not the regional characteristics, the smaller the electrical conductivity of seawater is , the bigger the underwater electric potential will be, but there is not the simple inverse ratio connection between them ; the difference in depth between field point and source point will produce an effect on the value of the underwater electric potential, as well as the regional characteristics, the smaller the difference in depth is , the bigger the underwater electric potential will be, and the smaller the horizontal displacement of the peak point to the source point will be~ the underwater electric potential is proportion to the moment of electric dipole the in fluence from the interface on the underwater electric potential cannot be ignored and the air-seawater interface enhance the underwater electric potential. The research results in this paper will provide reference for the forecasting of ship＇s under water electromagnetic field, the structural designing for eliminating the ship＇s underwater electromagnetic field and the e lectromagnetic fuse designing of underwater weapon.

关 键 词：舰船 水平直流电偶极子 水下标量电位 海洋环境 实验研究 

分 类 号：TJ6[兵器科学与技术—武器系统与运用工程]