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大型铁磁性物体近场磁异常场数值仿真

张梦颖 王华 葛霖 程浩

张梦颖, 王华, 葛霖, 等 . 大型铁磁性物体近场磁异常场数值仿真[J]. 北京航空航天大学学报, 2018, 44(11): 2454-2462. doi: 10.13700/j.bh.1001-5965.2018.0180
引用本文: 张梦颖, 王华, 葛霖, 等 . 大型铁磁性物体近场磁异常场数值仿真[J]. 北京航空航天大学学报, 2018, 44(11): 2454-2462. doi: 10.13700/j.bh.1001-5965.2018.0180
ZHANG Mengying, WANG Hua, GE Lin, et al. Numerical simulation of near-field magnetic anomaly field for large-scale ferromagnetic objects[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(11): 2454-2462. doi: 10.13700/j.bh.1001-5965.2018.0180(in Chinese)
Citation: ZHANG Mengying, WANG Hua, GE Lin, et al. Numerical simulation of near-field magnetic anomaly field for large-scale ferromagnetic objects[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(11): 2454-2462. doi: 10.13700/j.bh.1001-5965.2018.0180(in Chinese)

大型铁磁性物体近场磁异常场数值仿真

doi: 10.13700/j.bh.1001-5965.2018.0180
详细信息
    作者简介:

    张梦颖  女, 硕士研究生。主要研究方向:磁异常探测与路径修正

    王华  男, 博士, 教授, 博士生导师。主要研究方向:目标近场探测、微小型无人飞行平台设计

    通讯作者:

    王华, E-mail:whua402@163.com

  • 中图分类号: P318

Numerical simulation of near-field magnetic anomaly field for large-scale ferromagnetic objects

More Information
  • 摘要:

    磁异常探测是一种在地球物理领域有着广泛应用的探测方法,磁异常场的空间分布规律信息是磁异常探测的主要理论依据。对矩形铁磁性物体空间磁场模型进行了推导,利用ANSYS Maxwell分析了大型铁磁性物体近场的磁异常场空间分布规律。针对不同地磁场方向条件,得到了近场空间磁感应强度总量分布及矢量分布规律,揭示了在不同条件下磁感应强度模量场和矢量场都具有普遍的对称性和规律性。通过对仿真模型进行缩比试验,测量了类似条件下模型近场的磁感应强度模量场和矢量场信息,验证了仿真得到的磁异常场空间分布规律的一致性和正确性。

     

  • 图 1  长方体铁磁性物体磁化的分子环流模型

    Figure 1.  Molecular current model of cuboid magnetized ferromagnetic objects

    图 2  仿真材料的B-H磁化曲线

    Figure 2.  B-H magnetization curve of simulation materials

    图 3  仿真模型以及分析平面示意图

    Figure 3.  Schematic of simulation model and analysis planes

    图 4  地磁场条件为E=0°,θ=0°时磁感应强度模量大小分布

    Figure 4.  Magnitude distribution of magnetic induction intensity under geomagnetic condition of E=0° and θ=0°

    图 5  地磁场条件为E=0°,θ=0°时磁感应强度矢量分布

    Figure 5.  Vector distribution of magnetic induction intensity under geomagnetic condition of E=0° and θ=0°

    图 6  地磁场条件为E=0°,θ=45°时磁感应强度模量大小分布

    Figure 6.  Magnitude distribution of magnetic induction intensity under geomagnetic condition of E=0°and θ=45°

    图 7  地磁场条件为E=0°,θ=45°时磁感应强度矢量分布

    Figure 7.  Vector distribution of magnetic induction intensity under geomagnetic condition of E=0°and θ=45°

    图 8  地磁场条件为E=45°,θ=0°时磁感应强度模量大小分布

    Figure 8.  Magnitude distribution of magnetic induction intensity under geomagnetic condition of E=45°and θ=0°

    图 9  地磁场条件为E=45°,θ=0°时磁感应强度矢量分布

    Figure 9.  Vector distribution of magnetic induction intensity under geomagnetic condition of E=45°and θ=0°

    图 10  室外缩比模型试验

    Figure 10.  Outdoor test of shrinkage ratio model

    图 11  试验模型上方100 mm高度平面磁异常空间分布

    Figure 11.  Spatial distribution of magnetic anomaly at 100 mm height plane above test model

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出版历程
  • 收稿日期:  2018-04-03
  • 录用日期:  2018-07-10
  • 网络出版日期:  2018-11-20

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