Open AccessDamage detection of multi- source excitation based on FBG sensor
Author(s) -
Li Huang,
Xingqiang Chi
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/631/5/052014
Subject(s) - excitation , vibration , focus (optics) , reliability (semiconductor) , computer science , acoustics , materials science , structural engineering , optics , physics , engineering , electrical engineering , power (physics) , quantum mechanics
The Vibration detection is one of the key technologies of structural reliability. Traditional detection methods mainly focus on the analysis under single excitation, while the actual engineering problems mostly present the resonance phenomenon of multi-source excitation. Therefore, in this paper, based on the characteristics of FBG sensor, the vibration response characteristics under multi-source excitation are studied, including theoretical simulation and experimental research under multi-source excitation. On this basis, the experimental system for damage detection is built and its results show that this method by multi-excitation detection is feasible and it is sensitive to crack damage.