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Title |
Damage Evaluation of a Framed Structure Using Wavelet Packet Transform
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Keywords |
건전성평가 ; 웨이블렛펙킷변환 ; 인공신경망 Damage evaluation ; Wavelet packet transform(WPT) ; Artificial neural network(ANN) |
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Abstract |
This paper evaluates the soundness of structural elements using Wavelet Packet Transform (WPT). WPT is applied to the response acceleration of a framed structure which is subjected to earthquake load to decompose the response acceleration, then the energy of each component is calculated. The first five largest components in energy magnitude among the decomposed components are selected as input to an ANN to identify the damage location and severity. Two nodes in output layer yield damaged element and damage severity respectively. This method successfully evaluates the amount of damage and its location in the structure.
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