Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Frequency Range Optimization by the Use of ACO and BCO Methods in the Impedance-based SHM
Submission Author:
João Paulo Moreira Bento , GO
Co-Authors:
João Paulo Moreira Bento, Bruno Pereira Barella, Stanley Washington Ferreira Rezende, Jose dos Reis Vieira de Moura Jr
Presenter: João Paulo Moreira Bento
doi://10.26678/ABCM.COBEM2017.COB17-1363
Abstract
In the last years, the number of studies of SHM (Structural Health Monitoring) is increasing as an important field of Civil, Mechanic and Aeronautic Engineering. The Impedance-based technique is one of them and one factor to be chosen is because of the non-destructive aspects. According to this technique, real structure signatures are gathered in a pristine condition as such as in a damaged status. It was used in the experiment the following resources: an aluminum beam, a PZT patch, a magnet piece (in order to simulate the damage) and one AD5933EBZ evaluation card for the data acquisition. The aim of this contribution is to find the most sensitive frequency range to monitoring damages. Then, finding this frequency range is possible to create a model for damage detection purposes. Two bioinspired optimization methods were used in this study: Bee Colony Optimization (BCO) and Ant Colony Optimization (ACO). In both cases the objective function was the damage metric proposed by the impedance SHM technique. Results from both methods indicate the same best frequency range comparing the baseline and damage condition.
Keywords
Bee Colony Optimization, Ant Colony Optimization, Impedance-based Structural Health Monitoring
