TITLE:
Structure Damage Identification via Fiber Grating Strain Sensing Array Detecting and Wavelet Analysis
AUTHORS:
Pei Luo
KEYWORDS:
Fiber Grating Strain Sensing Array, Wavelet Package Analysis, Simple Supported Beam, Cracks Detecting, Vibration
JOURNAL NAME:
Optics and Photonics Journal,
Vol.8 No.9,
September
18,
2018
ABSTRACT: The measuring method of structure damage during vibrating has been developed by applying simple supported beam as object of study, fiber Bragg grating strain sensing array as the measuring method, and wavelet package analysis as signal extracting tools. The damage data of simple supported beam at vibrating state has been collected. The damage characteristic indexes have been extracted based on analyzing and handling the damage data with wavelet analysis. The experiment shows that fiber Bragg grating strain sensing array can sensitively measure the experimental data of simple supported beam at vibrating state. The fiber Bragg grating strain sensing array measuring is a new method in dynamic measurement.