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提出在非均匀材料填充的轴向旋转体内采用混合的点元和线元基函数的有限元方法分析非轴对称模式问题。通过选择合适的基函数可以减少非零特征值。几种数值方法结果对比表明了这种方法的正确性和有效性。该方法可广泛应用于电磁工程设计中。
A non-uniform material-filled axial rotating body is proposed to analyze the non-axisymmetric mode by using the finite element method of mixed point and line basis functions. Non-zero eigenvalues can be reduced by choosing the appropriate basis function. Comparison of numerical results shows that this method is correct and effective. The method can be widely used in electromagnetic engineering design.