作者
Yuhang Pan, Zahra Sharif Khodaei, MH Aliabadi
发表日期
2024/1/1
期刊
Procedia Structural Integrity
卷号
52
页码范围
699-708
出版商
Elsevier
简介
In this study, aiming at existing challenges in guided wave-based structure health monitoring (GWSHM) and vibration-based structure health monitoring (VSHM) methods, a hybrid method combining the advantages of these two methods is proposed to detect and localize damage on aluminium plate. Specifically, damage sensitive features are firstly extracted from guided wave and vibration, and then these features are input to a neural pattern recognition and a Backpropagation Neural Network (BPNN) to detect and localize the damage. Experimental results demonstrate that both the individual vibration and guided-wave methods are capable of achieving 100% accuracy in damage detection. However, in terms of damage localization, the GWSHM method achieves the best performance with an average Mean normalized distance (MND) value of 0.91cm and a minimum MND value of 0.66cm between the predicted …
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