【摘要】 在积分方程法的基础上，引入样条插值技术，提出了一种新的求解三维非线性磁场问题的数值方法——样条积分方程法．应用该方法采用国际ＴＥＡＭＷｏｒｋｓｈｏｐ第２１基准问题进行核算并对铝电解槽模型内的磁场分布进行了计算分析．结果表明：样条积分方程法在减少计算资源，提高计算精度等方面具有明显优势更多还原

【Abstract】 A novel spline integral equation method(SIEM) is presented for three dimensional nonlinear magnetic field calculation. Based on the Integral Equation Method, SIEM utilizes cubic spline interpolation function of the field values to express the field values of the interpolation elements by those of the retention elements and forms a new equation set. So the unknown variables may decrease considerably. As shown by calculation examples with SIEM, the required memory capacity and CPU time are reduced significantly and calculation accuracy increases obviously.更多还原