Structure Damage Detection Using Neural Network with Multi-Stage Substructuring

2010 ◽  
Vol 13 (1) ◽  
pp. 95-110 ◽  
Author(s):  
Norhisham Bakhary ◽  
Hong Hao ◽  
Andrew J. Deeks
Keyword(s):  
Neural Network ◽  
Damage Detection ◽  
Structure Damage ◽  
Multi Stage

226 A Bispectrum Feature Extracting and LVQ Neural Network Based Structure Damage Detection Method

2000 ◽  
Vol 2000.4 (0) ◽  
pp. 343-348
Author(s):  
Jin CHEN ◽  
Xiang SU ◽  
Ichiro HAGIWARA ◽  
Qinzhong SHI
Keyword(s):  
Neural Network ◽  
Damage Detection ◽  
Detection Method ◽  
Structure Damage ◽  
Feature Extracting

Composite Skin/Stringer Panel Damage Detection Based on Modal Strain Energy and Neural Network Technique

2011 ◽  
Vol 66-68 ◽  
pp. 322-327 ◽  
Author(s):  
Jia Hui ◽  
Xiao Peng Wan ◽  
Mei Ying Zhao
Keyword(s):  
Neural Network ◽  
Numerical Simulation ◽  
Damage Detection ◽  
Strain Energy ◽  
Modal Strain Energy ◽  
Structure Damage ◽  
Damage Indicator ◽  
Material Stiffness ◽  
Stiffness Properties

This paper proposed a new method to detect the damage of composite skin/stringer panel structure using modal strain energy combined with neural network. The change ratio of element modal strain energy is choosen as damage indicator because of it’s highly sensitivity to the location and severity of structure damage. Neural network here play the role of a tool to indentity the damage according to the change ratio of modal strain energy. To achive this, a three layers neural network model is built and the BP arithmetic is used. The proposed method is validated using a numerical simulation of a composite skin/stringer panel with damages in some elements of its FEM mode, which are simulated by reducing elements’ material stiffness properties. The result shows that, this method is robust, accurate and highly efficient with the maximal error limited in 10%.

Global-Based Structure Damage Detection Using LVQ Neural Network and Bispectrum Analysis

2005 ◽  
pp. 531-537 ◽  
Author(s):  
Guangming Dong ◽  
Jin Chen ◽  
Xuanyang Lei ◽  
Zuogui Ning ◽  
Dongsheng Wang ◽  
...  
Keyword(s):  
Neural Network ◽  
Damage Detection ◽  
Structure Damage
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