Method of damage location determination based on a neural network using a single fiber Bragg grating sensor.

In this paper, a structural damage identification algorithm based on a single fiber Bragg grating (FBG) sensor is proposed. The signal detected by the FBG can be analyzed by the wavelet packet decomposition and back propagation neural network to obtain the damage location information. A high-speed FBG demodulation system based on a tunable Fabry-Perot filter and unbalanced Mach-Zehnder (M-Z) interferometer is designed to respond to a signal with a frequency range from 0 to 4 kHz, which will increase the sensing accuracy. This algorithm is verified by the aluminum plate model, which can simulate the generation of damage in reality. The experimental results show that a single FBG sensor is enough to realize accurate damage location identification according to this algorithm, and identification accuracy can reach 90.0%.

[1]  A. Kersey,et al.  Multiplexed fiber Bragg grating strain-sensor system with a fiber Fabry - Perot wavelength filter. , 1993, Optics letters.

[2]  Mohammad Noori,et al.  Wavelet-Based Approach for Structural Damage Detection , 2000 .

[3]  J. Alfredo Guemes,et al.  Embedded fiber Bragg grating as local damage sensors for composite materials , 2002, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[4]  B. Samanta,et al.  ARTIFICIAL NEURAL NETWORK BASED FAULT DIAGNOSTICS OF ROLLING ELEMENT BEARINGS USING TIME-DOMAIN FEATURES , 2003 .

[5]  Richard Baraniuk,et al.  The Dual-tree Complex Wavelet Transform , 2007 .

[6]  Reza Rastegar,et al.  A Step Forward in Studying the Compact Genetic Algorithm , 2006, Evolutionary Computation.

[7]  P. Capoluongo,et al.  Modal analysis and damage detection by Fiber Bragg grating sensors , 2007 .

[8]  Dragan Coric,et al.  High-speed internal strain measurements in composite structures under dynamic load using embedded FBG sensors , 2010 .

[9]  Véronique Michaud,et al.  Impact localisation with FBG for a self-healing carbon fibre composite structure , 2011 .

[10]  Wei Fan,et al.  Vibration-based Damage Identification Methods: A Review and Comparative Study , 2011 .

[11]  Pizhong Qiao,et al.  Vibration-based Damage Identification Methods: A Review and Comparative Study , 2011 .

[12]  Theodoros Loutas,et al.  Dynamic fiber Bragg gratings based health monitoring system of composite aerospace structures , 2011 .

[13]  Joël Cugnoni,et al.  Low energy impact damage monitoring of composites using dynamic strain signals from FBG sensors - Part II: Damage identification , 2012 .

[14]  Assunta Sorrentino,et al.  Application of Artificial Neural Networks and Probability Ellipse methods for damage detection using Lamb waves , 2015 .

[15]  Jean Carlos Cardozo da Silva,et al.  Induction Motors Vibration Monitoring Using a Biaxial Optical Fiber Accelerometer , 2016, IEEE Sensors Journal.

[16]  Sanjaya Kumar Patro,et al.  Vibration-based damage detection techniques used for health monitoring of structures: a review , 2016 .

[17]  H. Marzouk,et al.  Use of fiber Bragg grating array and random decrement for damage detection in steel beam , 2016 .

[18]  Chandan Kumar Jha,et al.  Fiber Bragg grating interrogation using wavelength modulated tunable distributed feedback lasers and a fiber-optic Mach-Zehnder interferometer. , 2017, Applied optics.

[19]  Moncef Gabbouj,et al.  Real-time vibration-based structural damage detection using one-dimensional convolutional neural networks , 2017 .

[20]  Lei Jia,et al.  Research on FBG-Based CFRP Structural Damage Identification Using BP Neural Network , 2018 .

[21]  Wei-Xin Ren,et al.  Damage localization of beam structures using mode shape extracted from moving vehicle response , 2018, Measurement.

[22]  Xinqiu Fang,et al.  Measurement accuracy of FBG used as a surface-bonded strain sensor installed by adhesive. , 2018, Applied optics.

[23]  Xinqiu Fang,et al.  Strain transferring mechanism analysis of the surface-bonded FBG sensor. , 2018, Applied optics.

[24]  Mohammed Rabius Sunny,et al.  Structural Damage Detection Using Vibration Response Through Cross-Correlation Analysis: Experimental Study , 2018 .

[25]  Yucheng Zhong,et al.  Impact localization on composite laminates using fiber Bragg grating sensors and a novel technique based on strain amplitude , 2018 .

[26]  Kenneth T. V. Grattan,et al.  Laser Cladding-Based Metallic Embedding Technique for Fiber Optic Sensors , 2018, Journal of Lightwave Technology.

[27]  Zuyuan He,et al.  Miniature interrogator for multiplexed FBG strain sensors based on a thermally tunable microring resonator array. , 2019, Optics express.