A new methodology to perform Structural Health Monitoring (SHM) in complex structures which is based on Data Driven Models (DDM) by means of strain measurements from Fiber Optic Sensors (FOS), in particular Fiber Bragg Gratings (FBGs), was developed by using Principal Component Analysis (PCA) and automatic clustering techniques based on Self-Organizing Maps (SOM) and density methods. The methodology includes techniques to uncoupling the changes in the strain field caused by the damage occurrence and the change in the operational conditions. Those techniques can be classified as Optimal Baseline Selection (OBS) techniques. Several experiments where performed to develop the methodology and demonstrate the whole concept. Some representative results are presented and discussed.
Bibliographical noteFunding Information:
⋆ ⋆ The research included in this document was partially supported The research included in this document was partially supported coyortdhiena“tMedinipstreorjieoctdse DCPieIn2c0i1a1-e28I0n3n3o-vCa0ci3ó-n0”2 iannSdpaDinPIt2h0r1o1u-g2h80t3h3e-by the “Ministerio de Ciencia e Innovación” in Spain through the co0o3r-d0i3n;ataendd pbryojetchtes EDuPrIo2p0e1a1n-28C0o3m3-mCi0s3s-i0o2n athnrdouDghPI2th01e1-p2r8o0j3e3ct-coordinated projects DPI2011-28033-C03-02 and DPI2011-28033-SA03R-I0S3T; Uand by the European Commission through the project C03-03;SARISTUand by the European Commission through the project SASARRIISTUSTU
In this paper results from several experiments are presented. Such results were obtained thanks to the support of several projects. The authors would like to thank the support from the “Ministerio de Ciencia e Innovación” in Spain through the coordinated projects DPI2011-28033-C03-02 and DPI2011-28033-C03-03; and the European Commission through the project SARISTU.
- Dimensional Reduction
- Strain Field, Patterns
- Structural Health Monitoring