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Type: Artigo de Periódico
Title: Condition-based Diagnosis Of Mechatronic Systems Using A Fractional Calculus Approach
Author: Gutierrez-Carvajal
RE; de Melo
LF; Rosario
JM; Machado
Abstract: While fractional calculus (FC) is as old as integer calculus, its application has been mainly restricted to mathematics. However, many real systems are better described using FC equations than with integer models. FC is a suitable tool for describing systems characterised by their fractal nature, long-term memory and chaotic behaviour. It is a promising methodology for failure analysis and modelling, since the behaviour of a failing system depends on factors that increase the model's complexity. This paper explores the proficiency of FC in modelling complex behaviour by tuning only a few parameters. This work proposes a novel two-step strategy for diagnosis, first modelling common failure conditions and, second, by comparing these models with real machine signals and using the difference to feed a computational classifier. Our proposal is validated using an electrical motor coupled with a mechanical gear reducer.
Subject: Intelligent Maintenance
Intelligent Diagnostics
Application Of Fractional Calculus
Identification Of Fractional Order Systems
Rights: fechado
Identifier DOI: 10.1080/00207721.2014.978833
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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