In this study, control performance of a smart base isolation system consisting of a friction pendulum system (FPS) and a magnetorheological (MR) damper has been investigated. A fuzzy logic controller (FLC) is used to modulate the MR damper so as to minimize structural acceleration while maintaining acceptable base displacement levels. To this end, a multi-objective optimization scheme is used to optimize parameters of membership functions and find appropriate fuzzy rules. To demonstrate effectiveness of the proposed multi-objective genetic algorithm for FLC, a numerical study of a smart base isolation system is conducted using several historical earthquakes. It is shown that the proposed method can find optimal fuzzy rules and that the optimized FLC outperforms not only a passive control strategy but also a human-designed FLC and a conventional semi-active control algorithm.


    Access

    Download


    Export, share and cite



    Title :

    Seismic Response Reduction of Structures using Smart Base Isolation System


    Contributors:
    H.S. Kim (author)

    Publication date :

    2011-12-27


    Remarks:

    oai:zenodo.org:1063138



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    006 / 629




    Active-Passive Base Isolation System for Seismic Response Controlled Structures

    Sener, M. / Utku, S. / American Institute of Aeronautics and Astronautics| ASME| ASCE | British Library Conference Proceedings | 1995



    Seismic Dynamic Response Analysis of Mountain Tunnels with Seismic Reduction and Isolation Measures

    Liu, Zhong-Xian / Ai, Tian-Chun / Huang, Lei et al. | Springer Verlag | 2023


    SEISMIC ISOLATION SYSTEM

    YOSHIE KEISUKE / IMAEDA YUKI / NICOLAS GIRON | European Patent Office | 2022

    Free access

    Adaptive base-isolation of civil structures using variable amplification

    Walsh, K. K. / Abdullah, M. M. | British Library Online Contents | 2006