Geodesic
Detection and accommodation of second order distributed parameter systems with abrupt changes in input term: stability and adaptation
Kybernetika, Tome 34 (1998) no. 6, pp. 667-679 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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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.
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.
Classification : 65K10, 93C10, 93C40, 93E10, 93E12
Keywords: nonlinear estimator; fault detection; Lyapunov redesign methods 
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     author = {Demetriou, Michael A. and Polycarpou, Marios M.},
     title = {Detection and accommodation of second order distributed parameter systems with abrupt changes in input term: stability and adaptation},
     journal = {Kybernetika},
     pages = {667--679},
     year = {1998},
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     zbl = {1274.93145},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1998_34_6_a5/}
}
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Demetriou, Michael A.; Polycarpou, Marios M. Detection and accommodation of second order distributed parameter systems with abrupt changes in input term: stability and adaptation. Kybernetika, Tome 34 (1998) no. 6, pp. 667-679. http://geodesic.mathdoc.fr/item/KYB_1998_34_6_a5/

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