DocumentCode :
1860289
Title :
Fault detection in base-isolation systems via a restoring force observer
Author :
Vidal, Yolanda ; Acho, Leonardo ; Pozo, Francesc ; Rodellar, José
Author_Institution :
Dept. de Mat. Aplic. III, Univ. Politec. de Catalunya, Barcelona, Spain
fYear :
2010
fDate :
6-8 Oct. 2010
Firstpage :
777
Lastpage :
782
Abstract :
This paper proposes a fault detection method for hysteretic base-isolation systems. One of the key contributions of this work is a Lyapunov-based restoring force observer that leads to the design of a robust fault detection scheme. The different fault types considered are stiffness and damping variations in the system. The proposed fault estimation method provides a direct estimate of the size and severity of the fault, which can be important in many civil engineering applications. A design procedure is described, and nonlinear simulation results are presented to demonstrate the applicability of the proposed method.
Keywords :
Lyapunov methods; civil engineering; damping; fault diagnosis; observers; robust control; Lyapunov-based restoring force observer; civil engineering application; damping variations; fault detection method; fault estimation method; hysteretic base-isolation systems; robust fault detection scheme; stiffness; Buildings; Damping; Equations; Fault detection; Force; Mathematical model; Observers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control and Fault-Tolerant Systems (SysTol), 2010 Conference on
Conference_Location :
Nice
Print_ISBN :
978-1-4244-8153-8
Type :
conf
DOI :
10.1109/SYSTOL.2010.5676058
Filename :
5676058
Link To Document :
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