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Simulation Tools for a Fiber-Optic Based Structural Health Monitoring System

Transactions of Nanjing University of Aeronautics and Astronautics 2018年第2期35卷 219-225页

作者： Alfredo Güemes Antonio Fernandez-Lopez Jaime García-Ramírez Maria Eugenia Reyes-Perez flor criado zurita Laboratory for Composites & Smart Structures Department of AeronauticsPolytechnic University of Madrid

Probability of detection(POD)graphics allow for a change from qualitative to quantitative assessment for every damage detection system,and as such it is a main request for conventional non-destructive testing(NDT)*** availability can greatly help towards the industrialization of the corresponding Structural health monitoring(SHM)*** having in mind that for SHM systems the sensors are at fixed positions,and the location of a potential damage would change its *** robust simulation tools are required to obtain the model assisted probability of detection(MAPOD)which is needed to validate the SHM *** tool may also help for the optimization of the sensor distribution,and finally will allow a probabilistic risk ***,simulation of ultrasonic waves SHM system,was a main milestone in this *** article deals with the simulation tools for a strain based SHM system,using fiber optic sensors(FOS).FOS are essentially strain/temperature sensors,either with multi-point or with distributed *** simulation tool includes the finite element model(FEM)for the original and damaged structure,and algorithms to compare the strain data at the pre-established sensors locations,and from this comparison to extract information about damage occurrence and *** study has been applied to the structure of an all-composite unmanned aircraft vehicle(UAV)now under construction,designed at Universidad Politecnica de Madrid for the inspection of electrical utilities *** sensing optical fibers were internally bonded at the fuselage and *** inspection is planned to be done with the aircraft at the test bench by imposing known *** the acquired strain data,damage occurrence may be calculated as slight deviations from the *** is a fast inspection procedure without requiring trained specialists,and it would allow for detection of hidden *** indicates that stringer par

关键词： damage detection fiber optics distributed sensing finite element models probability of detection(POD) principal component analysis (PCA) fibre bragg gratings (FBG)

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