Structural health monitoring of beams with moving oscillator: theory and laboratory

In this paper, a new intelligent portable mechanical system is introduced experimentally and theoretically to detect damage employing the fuzzy-genetic algorithm EMD. For purpose, acceleration-time history obtained from three points of simply-supported beam utilizing accelerometer sensors. The gained signal decomposed into small components by using an EMD method. Each component contains specific frequency range. Finally, proposed designed find location severity through variation pattern among safe damaged beam.