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Title: Detection and accommodation of second order distributed parameter systems with abrupt changes in input term: stability and adaptation (English)
Author: Demetriou, Michael A.
Author: Polycarpou, Marios M.
Language: English
Journal: Kybernetika
ISSN: 0023-5954
Volume: 34
Issue: 6
Year: 1998
Pages: [667]-679
Summary lang: English
Category: math
Summary: In this note, we employ nonlinear on-line parameter estimation methods based on adaptive neural network approximators for detecting changes due to actuator faults in a class of second order distributed parameter systems. The motivating example is a cantilevered beam actuated via a pair of piezoceramic patches. We examine changes in the control input term, which provide a simple and practical model of actuator failures. Using Lyapunov redesign methods, a stable learning scheme for fault diagnosis is proposed. The resulting fault diagnosis scheme is utilized for control reconfiguration in order to accommodate the system’s actuator failure. A numerical algorithm is provided for the implementation of the detection and accommodation scheme and simulation studies are used to illustrate the applicability of the theoretical results. (English)
Keyword: nonlinear estimator
Keyword: fault detection
Keyword: Lyapunov redesign methods
MSC: 65K10
MSC: 93C10
MSC: 93C40
MSC: 93E10
MSC: 93E12
idZBL: Zbl 1274.93145
idMR: MR1695370
Date available: 2009-09-24T19:21:39Z
Last updated: 2015-03-28
Stable URL:
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