Then, an equivalent linearization method is applied to get its linearized stiffness matrix. The estimating method for the equivalent fundamental frequency of the membrane is deduced.

应用等效线性化方法得到方程组的线性化刚度矩阵，给出了结构等效一阶频率的计算方法；

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Then, an equivalent linearization method is applied to get its linearized stiffness matrix. The estimating method for the equivalent fundamental frequency of the membrane is deduced.

应用等效线性化方法得到方程组的线性化刚度矩阵，给出了结构等效一阶频率的计算方法；

youdao