期刊
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
卷 70-71, 期 -, 页码 811-820出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2015.08.022
关键词
Stiffness softening MRE isolator; Scaled three storey building; Fuzzy logic; Vibration isolation
资金
- ARC [140100303, 150102636, LP150100040]
- National Natural Science Foundation of China [51205100, 51328502]
- University of Wollongong
- China Scholarship Council [201206450060]
Protecting civil engineering structures from uncontrollable events such as earthquakes while maintaining their structural integrity and serviceability is very important; this paper describes the performance of a stiffness softening magnetorheological elastomer (MRE) isolator in a scaled three storey building. In order to construct a closed-loop system, a scaled three storey building was designed and built according to the scaling laws, and then four MRE isolator prototypes were fabricated and utilised to isolate the building from the motion induced by a scaled El Centro earthquake. Fuzzy logic was used to output the current signals to the isolators, based on the real-time responses of the building floors, and then a simulation was used to evaluate the feasibility of this closed loop control system before carrying out an experimental test. The simulation and experimental results showed that the stiffness softening MRE isolator controlled by fuzzy logic could suppress structural vibration well. (C) 2015 Elsevier Ltd. All rights reserved.
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