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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fault detection in base-isolation systems via a restoring force observer
Base isolation is a collection of structural elements of a building that should substantially decouple the building's structure from the shaking ground; thus, they protect the building's integrity and enhance its seismic performance. Base isolation tends to restrict transmission of the ground motion to the building, and it also keeps the building positioned properly over the foundation. 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.
Fault detection in base-isolation systems via a restoring force observer
Base isolation is a collection of structural elements of a building that should substantially decouple the building's structure from the shaking ground; thus, they protect the building's integrity and enhance its seismic performance. Base isolation tends to restrict transmission of the ground motion to the building, and it also keeps the building positioned properly over the foundation. 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.
Fault detection in base-isolation systems via a restoring force observer
Vidal, Yolanda (Autor:in) / Acho, Leonardo (Autor:in) / Pozo, Francesc (Autor:in) / Rodellar, Jose (Autor:in)
2010
6 Seiten, 4 Bilder, 24 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
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