Documents disponibles écrits par cet auteur

Adaptive observer for fault diagnosis in nonlinear discrete-time systems / F. Caccavale in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 130 N°2 (Mars/Avril 2008) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 N°2 (Mars/Avril 2008) . - 9 p. Titre : Adaptive observer for fault diagnosis in nonlinear discrete-time systems Type de document : texte imprimé Auteurs : F. Caccavale, Auteur ; L. Villani, Auteur ; F. Pierri, Auteur Année de publication : 2008 Article en page(s) : 9 p. Note générale : dynamic systems Langues : Anglais (eng) Mots-clés : actuators;  modeling;  dynamics  (mechanics);  stability;  errors;  fault  diagnosis;  manipulators;  nonlinear  systems;  failure;  robots;  equations;  state  estimation;  flaw  detection Résumé : This paper deals with the problem of fault diagnosis (FD) for a class of nonlinear systems. The scheme is based on a discrete-time diagnostic observer that computes a prediction of the system’s state. Compensation of the fault effect on the state prediction is achieved via an adaptive discrete-time approach, based on a parametric model of the faults. A stability proof is developed to prove the global exponential stability of the state estimates. A solution for fault isolation and identification is also proposed, based on a postfault analysis. The proposed FD approach is applied and experimentally tested on a conventional industrial robot manipulator. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...] [article] Adaptive observer for fault diagnosis in nonlinear discrete-time systems [texte imprimé] / F. Caccavale, Auteur ; L. Villani, Auteur ; F. Pierri, Auteur . - 2008 . - 9 p. dynamic systems Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 N°2 (Mars/Avril 2008) . - 9 p. Mots-clés : actuators;  modeling;  dynamics  (mechanics);  stability;  errors;  fault  diagnosis;  manipulators;  nonlinear  systems;  failure;  robots;  equations;  state  estimation;  flaw  detection Résumé : This paper deals with the problem of fault diagnosis (FD) for a class of nonlinear systems. The scheme is based on a discrete-time diagnostic observer that computes a prediction of the system’s state. Compensation of the fault effect on the state prediction is achieved via an adaptive discrete-time approach, based on a parametric model of the faults. A stability proof is developed to prove the global exponential stability of the state estimates. A solution for fault isolation and identification is also proposed, based on a postfault analysis. The proposed FD approach is applied and experimentally tested on a conventional industrial robot manipulator. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...]