The weighted equivalent linearization technique is an effective approximation for nonlinear random vibration analysis.

加权等价线性化方法是研究非线性随机振动的一种有效近似方法。

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By combining equivalent linearization method with harmonic balancing technique, the approximate analytic response was obtained.

将等效线性化法与谐波平衡法相结合，求出了系统的近似解析响应。

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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；

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