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Generalized active disturbance rejection control of structures under seismic disturbance considering time delays
Author(s) -
Khoshbin Elham,
Abolmasoumi Amir Hossein,
Soleymani Mehdi,
Khalatbari Arash
Publication year - 2018
Publication title -
structural control and health monitoring
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.587
H-Index - 62
eISSN - 1545-2263
pISSN - 1545-2255
DOI - 10.1002/stc.2029
Subject(s) - earthquake shaking table , control theory (sociology) , disturbance (geology) , actuator , controller (irrigation) , engineering , damper , acceleration , stability (learning theory) , computer science , control engineering , control (management) , structural engineering , physics , geology , paleontology , agronomy , electrical engineering , classical mechanics , artificial intelligence , machine learning , biology
Summary The active disturbance rejection control of a delayed 2‐degree‐of‐freedom structure against earthquake motion force is investigated. A shaking table that resembles the acceleration profiles of most known earthquakes is used to generate the horizontal force. To compensate the motions caused by the earthquake simulator, an active tuned mass and damper system is attached to the structure. Due to the strong effects of the motion forces as a disturbance input, an active disturbance rejection controller including an extended state observer is designed and implemented. The controller designed is modified with including a state predictor to address the control input delays induced by the remote networked control or actuator delays. The stability of the whole system is verified via Lyapunov analysis and tested on the structure sample including shaking table. The results show the effectiveness of the proposed approach to regulate the structure motions in different earthquake scenarios.