Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/6934
Título: Condition-Based Diagnosis of Mechatronic Systems Using a Fractional Calculus Approach
Autor: Gutiérrez-Carvajal, Ricardo Enrique
Melo, Leonimer Flávio de
Rosário, João Maurício
Machado, J. A. Tenreiro
Palavras-chave: Intelligent maintenance
Intelligent diagnostics
Application of fractional calculus
Identification of fractional order systems
Data: 2014
Editora: Taylor & Francis
Relatório da Série N.º: International Journal of Systems Science;
Resumo: 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.
URI: http://hdl.handle.net/10400.22/6934
DOI: 10.1080/00207721.2014.978833
Versão do Editor: http://www.tandfonline.com/doi/abs/10.1080/00207721.2014.978833
Aparece nas colecções:ISEP - DEE - Artigos

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