Structure finite element model updating technology based on the frequency response function is one of the most important directions in current structure dynamics research.

基于频响函数的结构有限元模型修正技术是当前结构动力学领域的重要研究方向之一。

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So now let's look at the frequency response function and discuss the different parts of this function.

那么现在我们来看一看频响函数，并讨论这个频响的不同部分。

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Firstly, by means of multiple scale method the frequency response function of weakly nonlinear vibration system is derived.

首先，用多尺度法导出弱非线性强迫激励系统的频率响应函数。

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