Structural modal parameter identification and damage diagnosis based on Hilbert-Huang transform

doi:10.1007/s11803-014-0215-3

	Structural modal parameter identification and damage diagnosis based on Hilbert-Huang transform
	Han Jianping; Zheng Peijuan; Wang Hongtao
刊名	EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION
	2014-03
卷号	13 期号:1 页码:101-111
关键词	modal parameter identification damage diagnosis Hilbert-Huang transform natural excitation technique stochastic subspace identification random decrement method shaking table test
ISSN号	1671-3664
DOI	10.1007/s11803-014-0215-3
英文摘要	Traditional modal parameter identification methods have many disadvantages, especially when used for processing nonlinear and non-stationary signals. In addition, they are usually not able to accurately identify the damping ratio and damage. In this study, methods based on the Hilbert-Huang transform (HHT) are investigated for structural modal parameter identification and damage diagnosis. First, mirror extension and prediction via a radial basis function (RBF) neural network are used to restrain the troublesome end-effect issue in empirical mode decomposition (EMD), which is a crucial part of HHT. Then, the approaches based on HHT combined with other techniques, such as the random decrement technique (RDT), natural excitation technique (NExT) and stochastic subspace identification (SSI), are proposed to identify modal parameters of structures. Furthermore, a damage diagnosis method based on the HHT is also proposed. Time-varying instantaneous frequency and instantaneous energy are used to identify the damage evolution of the structure. The relative amplitude of the Hilbert marginal spectrum is used to identify the damage location of the structure. Finally, acceleration records at gauge points from shaking table testing of a 12-story reinforced concrete frame model are taken to validate the proposed approaches. The results show that the proposed approaches based on HHT for modal parameter identification and damage diagnosis are reliable and practical.
资助项目	Gansu Science and Technology Key Project[2GS057-A52-008]
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000333084000009
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34442]
专题	教务处（创新创业学院）
通讯作者	Han Jianping
作者单位	Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Han Jianping,Zheng Peijuan,Wang Hongtao. Structural modal parameter identification and damage diagnosis based on Hilbert-Huang transform[J]. EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION,2014,13(1):101-111.
APA	Han Jianping,Zheng Peijuan,&Wang Hongtao.(2014).Structural modal parameter identification and damage diagnosis based on Hilbert-Huang transform.EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION,13(1),101-111.
MLA	Han Jianping,et al."Structural modal parameter identification and damage diagnosis based on Hilbert-Huang transform".EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION 13.1(2014):101-111.