基于小波变换的模态参数辨识方法研究
Based on Wavelet Transform Method of Modal Parameter Identification
系统地阐述了运用Morlet小波进行模态参数识别的方法。首先通过随机减量技术得到系统的自由振动响应信号，然后用morlet小波对自由振动响应信号进行连续小波变换，根据模极大值法原理提取了小波脊线与小波骨架，最后利用提取的小波骨架来识别结构的阻尼和频率。通过仿真验证分析，证实了此方法的有效性。
he method of model identification using Morlet wavelet is presented. The free vibration signal is first obtained through stochastic decrement technique, and its continuous wavelet transformation is done by use of Morlet wavelet. And then, the wavelet ridge and wavelet frame, which is later used to identify the damp and frequency of system is extracted through maximum magnitude principle. The simulation test confirm the validity of the method presented here.
连俊义
力学
小波变换模态参数识别随机减量法
Wavelet TransformModeParameter identificationstochastic decrement law
连俊义.基于小波变换的模态参数辨识方法研究[EB/OL].(2011-03-22)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/201103-889.点此复制
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