Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
CUCKOO SEARCH ALGORITHM FOR OPTIMIZATION OF THE FREQUENCY RANGE IN THE IMPEDANCE-BASED STRUCTURAL HEALTH MONITORING
Submission Author:
Jose dos Reis Vieira de Moura Jr , MG , Brazil
Co-Authors:
Robson Medrado de Oliveira, Renan Garcia Rosa, Bruno Pereira Barella, Stanley Washington Ferreira Rezende, Jose dos Reis Vieira de Moura Jr
Presenter: Stanley Washington Ferreira Rezende
doi://10.26678/ABCM.COBEM2019.COB2019-1491
Abstract
In several industries it is very common the use of pipeline systems to convey fluid from one location to another. The impedance-based structural health monitoring is a method to supervise and detect premature failures in systems or structures. The aim of this contribution is to identify the best frequency range in a pipeline system in order to be more sensitive to the damages in the monitoring. The optimization method used was the Cuckoo Search Algorithm and the objective function used in this study was the Root-Mean-Square Deviation Damage Metric (M_RMSD). It was compared the pristine structure (baseline signature) to the damaged structure (damage signature) in a wide frequency range in order to perform the optimization and check the best range which both curves generated the most different Damage Metric. Concluding, the experiments performed in this case illustrates the optimization method converged to the most different frequency range part of the full signatures, considering both states. Thus, in the next step this best frequency range of the pipeline system will be used to implement an online monitoring system.
Keywords
Cuckoo Search Algorithm, Frequency range optimization, Structural Health Monitoring
