| 时变场中导电导磁体的边界元素法 |
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| 引用本文： | 扶永铭.时变场中导电导磁体的边界元素法[J].成都理工大学学报(自然科学版),1995(3). |
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| 作者姓名： | 扶永铭 |
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| 作者单位： | 成都理工学院信息工程与地球物理系 |
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| 摘 要： | 该文研究了低频人工时变场（似稳场）中任意导电导磁矿体的边界元素法。通过对矢量位的边界积分方程，再以样条边界元素法进行离散，得到实分量的常系数方程组和虚分量的二阶微分方程组。此方程可利用时间积分的样条函数方法求解，解出矢量位后，利用磁场强度与矢量位Ａ的相应关系而求得二次磁场的水平分量和垂直分量。
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| 关 键 词： | 人工时变场，任意导电导磁矿体，样条边界元素解 |
A BOUNDARY ELEMENT METHOD FOR AN OREBODY WITH ELECTROMAGNETIC CONDUCTIVITY IN A TIME-VARIABLE FIELD |
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| Fu Yongming.A BOUNDARY ELEMENT METHOD FOR AN OREBODY WITH ELECTROMAGNETIC CONDUCTIVITY IN A TIME-VARIABLE FIELD[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1995(3). |
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| Authors: | Fu Yongming |
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| Institution: | Fu Yongming |
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| Abstract: | This paper presents a boundary element method for an arbitrary orebody with electromagnetic conductivity in low-frequency manual time-variable field (quasi-stable field). The second orderdifferential equations with constant coefficient for real and imaginary components are obtained by discretization of spline boundary elements for the boundary integral equation of vector potential. The system of equations is solved by spline function of integration with respect to time. After the vector potential is given,the horizontal and vertical components of the second magnetic field are derived from tilerelation between the magnetic field intensity and vector potential. |
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| Keywords: | manual time-variable field orebody electromagnetic conductivity spline boundary element solution |
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