基于螺线管式的舰船模拟磁源建模仿真研究

Research on ship simulation magnetic source modeling based on solenoid type

为研究螺线管式磁源模拟舰船磁场的有效性,建立了导航坐标系、传感器坐标系、载体坐标系,并计算了3种坐标系的转换关系。建立基于等效磁偶极子阵列和椭球体的混合模型,利用磁源磁场仿真试验和船模磁场对比仿真试验,通过特性曲线、磁倾角余弦、磁场标量梯度等时域特征和磁场空间分布情况及磁场时间序列相似性度量,验证了螺线管式磁源磁场与舰船磁场具有一定的相似性。研究结果证明:采用螺线管式磁源磁模拟技术模拟舰船磁场特征是可行的。

In order to study the effectiveness of solenoid magnetic source in simulating the magnetic field of ships,the navigation coordinate system,sensor coordinate system and carrier coordinate system are established,and the conversion relationship of the three coordinate systems is calculated.A hybrid model based on equivalent magnetic dipole array and ellipsoid is established,and the magnetic source magnetic field simulation test and ship model magnetic field comparison simulation test are used to sum the time-domain characteristics such as passing characteristic curve,magnetic inclination cosine and magnetic field scalar gradient.The spatial distribution of magnetic fields verifies that the solenoid magnetic source magnetic field has certain similarity with the ship magnetic field.The results show that it is feasible to simulate the magnetic field characteristics of ships by solenoid magnetic source magnetic simulation technology.