The main method is using the properties of the solutions of characteristic matrix equation.
主要的方法是利用矩阵差分方程的特征矩阵方程解的性质。
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。
The stiffness matrix corrected by the method not only satisfies the characteristic equation, but also is the unique symmetric positive semidefinite matrix.
用这个方法修正的刚度矩阵不仅满足特征方程，而且是唯一的对称半正定矩阵。
Parts transfer equation, parts transfer matrix and system characteristic equation are established and fast calculation problem for natural vibration characteristic of MSW is solved .
建立了金属风暴武器部件传递方程和传递矩阵、系统特征方程，解决了振动特性快速计算难题；
The stiffness matrix corrected by the method not only satisfies the characteristic equation, but also is the …
用这个方法修正的刚度矩阵不仅满足特征方程，而且是唯一的对称半正定矩阵。
The stiffness matrix corrected by the method not only satisfies the characteristic equation, but also is the …
用这个方法修正的刚度矩阵不仅满足特征方程，而且是唯一的对称半正定矩阵。
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