Fault detection in base-isolation systems via a restoring force observer
Document typeConference report
Rights accessOpen Access
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.
CitationVidal, Y. [et al.]. Fault detection in base-isolation systems via a restoring force observer. A: IEEE International Conference on Control and Fault-Tolerant Systems. "Conference on Control and Fault-Tolerant Systems". Nice: 2010, p. 777-782.