Embedded Piezodiagnostics for Online Structural Damage Detection Based on PCA Algorithm
Abstract »This work discusses a methodology used to implement a data-driven strategy for Structural Health Monitoring. First, the instrumentation of the equipment is detailed by describing the main components to be installed in the test structure in order to produce guided waves. Specifically, an active piezo active system is used for this purpose, which consists of piezoelectric devices attached to the test structure surface and an acquisition system. Then, the programming procedure to embed the damage detection algorithm is defined. In particular, the mathematical foundations and software requirements for implementing the preprocessing stage, baseline model building, and statistical index computation are specified. As a result, the Odroid-U3 computational core has the capability to perform online damage assessment. Finally, some validation tests are presented through videos and short real time demonstration. Experimental data are recorded from two test specimens: i.) a lab carbon steel pipe loop built to emulate leak scenarios, and ii.) an aluminum plate, where mass adding is used to emulate reversible damages. The results reported in this work show the high feasibility of the proposal methodology for obtaining an online embedded monitoring system with several advantages such as low cost, easy configuration, expandability and few computational resources.
Biography: Electrical and Electronic Engineer, Doctor in Information Technologies. Full Time Profffesor of the Universidad Industrial de SAntander, Bucaramanga, Colombia.
Affiliation: UNIVERSIDAD INDUSTRIAL DE SANTANDER ELECTRICAL, ELECTRONICS AND TELECOMUNNICATIONS SCHOOL S/N BUCRAMANGA Colombia www.uis.edu.coMujica Delgado, Luis EduardoMujica Delgado, Luis Eduardo email@example.com
Affiliation: Universitat Politècnica de Catalunya Department of Mathematics Barcelona SpainRuiz Ordoñez, Magda LilianaRuiz Ordoñez, Magda Liliana firstname.lastname@example.org
Affiliation: Universitat Politecnica de Catalunya Barcelona SpainCamacho Navarro, JhonatanCamacho Navarro, Jhonatan email@example.com
Affiliation: Universidad Industrial de Santander / Universitat Politécnica de Catalunya Bucaramanga ColombiaAriza, FabianAriza, Fabian firstname.lastname@example.org
Affiliation: Universidad Industrial de Santander Bucaramanga Colombia*Contact