Identification of damping in MDOF systems using time-scale decomposition

被引：297
|
作者：
Staszewski, WJ
机构：
[1] Dynamics Research Group, Department of Mechanical Engineering, University of Sheffield, Sheffield S1 3JD, Mappin Street
来源：
JOURNAL OF SOUND AND VIBRATION | 1997年 / 203卷 / 02期
关键词：
D O I：
10.1006/jsvi.1996.0864
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A method of damping identification in multi-degree-of-freedom systems is presented. The method is based on the time-scale decomposition of the system impulse response. The continuous wavelet transform is used to decompose the impulse response into the time-scale domain. Three techinques based on the wavelet transform are used to estimate damping. These are the wavelet transform cross-section procedure, the impulse response recovery procedure based on wavelet domain filtering and the wavelet ridge detection procedure. The methods are applied to simulated multi-degree-of-freedom systems. (C) 1997 Academic Press Limited.
引用
收藏
页码：283 / 305
页数：23
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