Građevinar, Vol. 73 No. 07., 2021.
Preliminary communication
https://doi.org/10.14256/JCE.3032.2020
Structural health monitoring of beams with moving oscillator: theory and laboratory
Reza Goldaran
Mehdi Kouhdaragh
Abstract
In this paper, a new intelligent portable mechanical system is introduced experimentally and theoretically to detect damage employing the fuzzy-genetic algorithm and EMD. For this purpose, the acceleration-time history is obtained from three points of a simply-supported beam utilizing accelerometer sensors. The gained signal is decomposed into small components by using an EMD method. Each decomposed component contains a specific frequency range. Finally, the proposed algorithm is designed to find the location and severity of damage through the frequency variation pattern among the safe and the damaged beam.
Keywords
damage detection; vibration generating system; empirical mode decomposition; signal processing; fuzzy-genetic algorithm
Hrčak ID:
261845
URI
Publication date:
22.8.2021.
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