Paper Title:
Structural Damage Identification Using Wavelet Packet Analysis and Neural Network
  Abstract

This paper describes a study on damage identification using wavelet packet analysis and neural networks. The identification procedure could be divided into three steps. First, structure responses are decomposed into wavelet packet components. Then, the component energies are used to define damage feature and to train neural network models. Finally, in combination with the feature of the damaged structure response, the trained models are employed to determine the occurrence, the location and the qualification of the damage. The emphasis of this study is put on multi-damage case. Relevant issues are studied in detail especially the selection of training samples for multi-damage identification oriented neural network training. A frame model is utilized in the simulation cases to study the sampling techniques and the multi-damage identification. Uniform design is determined to be the most suitable sampling technique through simulation results. Identifications of multi-damage cases of the frame including different levels of damage at various locations are investigated. The results show that damages are successfully identified in all cases.

  Info
Periodical
Key Engineering Materials (Volumes 324-325)
Edited by
M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz
Pages
205-208
DOI
10.4028/www.scientific.net/KEM.324-325.205
Citation
Q. G. Fei, A. Q. Li, C. Q. Miao, Z. J. Li, "Structural Damage Identification Using Wavelet Packet Analysis and Neural Network", Key Engineering Materials, Vols. 324-325, pp. 205-208, 2006
Online since
November 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Ma Dong
Abstract:In recent years, there were been increasing researches focusing on the application of artificial neural networks in structural damage...
642
Authors: Fei Zheng, Jin Yu Xu, Yong Chen, De Hui Zhao
Abstract:Underground arch structure is an important structure form of civil air defense engineering, and its damage detection is an important link in...
2576
Authors: Yan Song Diao, Fei Yu, Dong Mei Meng
Chapter 2: Monitoring and Control of Structures
Abstract:When the AR model is used to identify the structural damage, one problem is often met, that is the method can only make a decision whether...
1211
Authors: Long Qiao, Asad Esmaeily
Chapter 2: Monitoring and Control of Structures
Abstract:Deterioration of structures due to aging, cumulative crack growth or excessive response significantly affects the performance and safety of...
834
Authors: Feng Ge Li, Hong Yu
Chapter 2: Disaster Prevention and Reduction of Civil Engineering
Abstract:A new method to diagnose the damage of masonry structure using artificial network is brought forward. The frequencies and the ratio of change...
1148