舰船水下标量电位的混合建模研究

Mixed Modeling Research on the Underwater Electric Potential of Ships

针对舰船水下电、磁场分布特征,提出对舰船水下标量电位进行混合建模研究,也就是以水下标量电位为线索,将舰船等效为水平电流线和几个离散的三分量电偶极子的组合,通过测量舰船下方某平面上的标量电位分布,拟合出混合模型中的未知参量.在实验室中进行了验模,结果表明该方法中待定参数少,实际测量容易进行,计算量小,模型稳定,比较适合用来对舰船水下静态电、磁信号进行模型研究.

A mixed modeling method to model the underwater electric potential of ships is put forward in this paper aiming to study the characteristics of the underwater electric and magnetic field of ships.The method of mixed modeling is to regard a ship as a horizontal current line combined with several discrete dipoles whose unknown parameters should be found by measuring the distribution of the electric potential in the water under the ship.The method is validated by experiments using a physical scale model of a ship in laboratory and the results show that this method is more fit for modeling research on the characteristics of the underwater static electric and magnetic field of ships because of less unknown parameters,easier actual measurement,less calculation and more stabilization.