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Mechanical Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2002

Worcester Polytechnic Institute

Fault detection

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Full-Text Articles in Mechanical Engineering

A Model-Based Fault Detection And Diagnosis Scheme For Distributed Parameter Systems: A Learning Systems Approach, Michael A. Demetriou Jan 2002

A Model-Based Fault Detection And Diagnosis Scheme For Distributed Parameter Systems: A Learning Systems Approach, Michael A. Demetriou

Mechanical Engineering Faculty Publications

In this note, fault detection techniques based on finite dimensional results are extended and applied to a class of infinite dimensional dynamical systems. This special class of systems assumes linear plant dynamics having an abrupt additive perturbation as the fault. This fault is assumed to be linear in the (unknown) constant (and possibly functional) parameters. An observer-based model estimate is proposed which serves to monitor the system's dynamics for unanticipated failures, and its well posedness is summarized. Using a Lyapunov synthesis approach extended and applied to infinite dimensional systems, a stable adaptive fault diagnosis (fault parameter learning) scheme is ...