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Published: Građevinar 73 (2021) 7
Paper type: Scientific research paper
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Structural health monitoring of beams with moving oscillator: theory and laboratory

Reza Roldaran, 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

HOW TO CITE THIS ARTICLE:

Roldaran, R., Kouhdaragh, M.: Structural health monitoring of beams with moving oscillator: theory and laboratory, GRAĐEVINAR, 73 (2021) 7, pp. 693-704, doi: https://doi.org/10.14256/JCE.3032.2020

OR:

Roldaran, R., Kouhdaragh, M. (2021). Structural health monitoring of beams with moving oscillator: theory and laboratory, GRAĐEVINAR, 73 (7), 693-704, doi: https://doi.org/10.14256/JCE.3032.2020

LICENCE:

Creative Commons License
This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
reza
Reza Roldaran
Girne American University, Cyprus
Faculty of Engineering
Civil Engineering Department
Kuhdaragh WEB
Mehdi Kouhdaragh
Islamic Azad University, Malekan, Iran
Malekan Branch
Civil Engineering Department