Abstract
The article presents results of experimental analysis targeted to actuator and sensor failures in the overlapping decentralized LQG feedback-based structure to mitigate responses of an earthquake-excited 20-story building. The building structure belongs to the second generation of civil engineering benchmark models. It includes a complete physical description, a high-fidelity finite element model and a Matlab/Simulink simulation framework. The presented performance analysis is focused on sensor and actuator failures appearing in individual local loops within two overlapped subsystems of an in-plane (2D) structure under the four real world historical earthquake records. The benchmark evaluation criteria and dynamic responses are analyzed to assess the acceptable performance.
Highlights
Large scale systems require control laws whose computation is efficient, and whose operation and implementation entails a minimum amount of information exchange amount the subsystems
Up to the author‘s knowledge, experimental analysis focused on the reliability ofsensors and actuators in the decentralized overlapping LQG controller implemented in civil structures to mitigate responses of an earthquake-excited has not yet been addressed
Suppose the sensor models are identical with those used in the sample control design example, but their location and number are different from the sample example
Summary
Large scale systems require control laws whose computation is efficient, and whose operation and implementation entails a minimum amount of information exchange amount the subsystems. It is well known that it leads to the development of the theory synthesizing control laws under decentralized information structure constraints [1]-[5]. Control of civil structures represents a new, difficult and unique problem, with many complexities in the processes of modeling, control design and implementation [6]-[11]. Benchmark structural models have been proposed and tested as challenging problems to structural control community to design and compare control schemes for civil structures subjected to strong wind or earthquake excitations [9], [12]-[18]. Up to the author‘s knowledge, experimental analysis focused on the reliability ofsensors and actuators in the decentralized overlapping LQG controller implemented in civil structures to mitigate responses of an earthquake-excited has not yet been addressed
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