基于环境激励的模态参数辨识方法综述

REVIEW OF MODAL IDENTIFICATION METHOD BASED ON AMBIENT EXCITATION

本文首先对环境激励下模态识别方法进行了综述 ,对目前的几种识别方法的原理、识别精度及适用条件进行了论述 ,并比较了这些方法各自的特点 ,参照国内外最新文献 。

In the paper some structural modal parameter identification methods which are based on ambient excitation are introduced.These methods include Time Series,APMA Modal,Stochastic subspace,NExT,IMD,and Time-Frequency Methods.Their specialties are compared.The critical issues for further research in this field are also pointed out.