Discretization in angular coordinate is needed only and the global equation is a second order characteristic matrix equation.

该一维有限元列式只需对扇形区域在角度方向上离散，最后的总体方程为一个二次特征根方程。

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Discretization in angular coordinate is needed only and the global equation is a second order characteristic matrix equation.

该一维有限元列式只需对扇形区域在角度方向上离散，最后的总体方程为一个二次特征根方程。

youdao