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http://dx.doi.org/10.5000/EESK.2005.9.6.075

Fuzzy Control of Semi-Active Magneto-Rheological Dampers for Seismic Response Control of Cable-Stayed Bridge  

Ok, Seung-Yong (서울대학교 교량설계핵심기술연구단)
Kim, Dong-Seok (서울대학교 지구환경시스템공학부)
Koh, Hyun-Moo (서울대학교 지구환경시스템공학부)
Park, Kwan-Soon (동국대학교 건축공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.9, no.6, 2005 , pp. 75-90 More about this Journal
Abstract
This paper proposes semi-active fuzzy control technique of magneto-rheological dampers for seismic response control of cable-stayed bridges. Through the fuzzy inference process, the proposed technique performs the semi-active control with the responses of MR dampers only. Moreover, differently from the conventional semi-active control technique, this technique does not require additional active controller for the primary controller, which provides a simple design process. in order to validate the control performance of the proposed technique, the semi-active fuzzy control technique is applied to the benchmark control problem of cable-stayed bridge and its control performance is compared with those of conventional semi-active control techniques. The comparative results show that the proposed fuzzy control technique can be an effective control strategy by efficiently and simultaneously reducing the mutual conflicting responses such as the shear forces and moments at the base of the lowers, longitudinal displacement of the deck, and tensions in the stay cables.
Keywords
MR damper; semi-active fuzzy control; response control;
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