Visualizing control systems performance: A fractional perspective

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

António Mendes Lopes (Autor) FEUP; Tenreiro Machado, JAT (Autor) Outra

Revista

Título: Advances in Mechanical Engineering

Vol. 7

ISSN: 1687-8132

Editora: SAGE

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 4 Citações

Outras Informações

ID Authenticus: P-00J-ZY4

DOI: 10.1177/1687814015619831

Abstract (EN): This article presents a novel method for visualizing the control systems behavior. The proposed scheme uses the tools of fractional calculus and computes the signals propagating within the system structure as a time/frequency-space wave. Linear and nonlinear closed-loop control systems are analyzed, for both the time and frequency responses, under the action of a reference step input signal. Several nonlinearities, namely, Coulomb friction and backlash, are also tested. The numerical experiments demonstrate the feasibility of the proposed methodology as a visualization tool and motivate its extension for other systems and classes of nonlinearities.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8