潜艇感应磁场的三维有限元法计算研究

本文论述了潜艇垂直感应磁性磁场的有限元计算方法，并研究了提高计算精度的问题，对于２Ｂ深度龙骨下１３个测量点，用０３潜艇船模实验数据校核得出，该磁场的平均相对误差为８．６２％的良好结果，由此得出舰船感应磁场的原始数据可用数值方法计算，并为舰船磁场从物理模拟走向数学模型创造了有利条件。

A Resarch on the Calculation of the Induced Magnetic Field of a Submarine

The calculation of the magnetic field of a submarine induced by the earth's vertical field is studied by the finite element method. The calculated field data of a submarine model on 13 measuring points at depth 2B below its keel are compared with the measured values. A good result with the average relative (to field maximum) error 8. 62% has been reached after studying the calculating technique. Thus, the induced magnetic field of a vessel may be got by numerical method before its manufacture. Further advances from the physical model of a vessel to its mathematical model can be expected.