Modal identification based on Hilbert-Huang Transform of structural response with SVD preprocessing

被引：17
|
作者：
Zheng, Min [1 ]
Shen, Fan [1 ]
Dou, Yuping [1 ]
Yan, Xiaoyan [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Civil Aviat, Nanjing 210016, Peoples R China
来源：
ACTA MECHANICA SINICA | 2009年 / 25卷 / 06期
关键词：
Modal identification; Hilbert-Huang Transforms; Singular-value decomposition; Signal processing; WAVELET TRANSFORM; FAULT-DIAGNOSIS; PARAMETERS; SYSTEM;
D O I：
10.1007/s10409-009-0289-8
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In recent years, Empirical mode decomposition and Hilbert spectral analysis have been combined to identify system parameters. Singular-Value Decomposition is proposed as a signal preprocessing technique of Hilbert-Huang Transform to extract modal parameters for closely spaced modes and low-energy components. The proposed method is applied to a simulated airplane model built in Automatic Dynamic Analysis of Mechanical Systems software. The results demonstrate that the identified modal parameters are in good agreement with the baseline model.
引用
收藏
页码：883 / 888
页数：6
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