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    Design and Evaluation of Tuned Inerter-Based Dampers for the Seismic Control of MDOF Structures

    Source: Journal of Structural Engineering:;2017:;Volume ( 143 ):;issue: 004
    Author:
    Yongkui Wen
    ,
    Zhengqing Chen
    ,
    Xugang Hua
    DOI: 10.1061/(ASCE)ST.1943-541X.0001680
    Publisher: American Society of Civil Engineers
    Abstract: The tuned viscous mass damper (TVMD) and tuned inerter damper (TID) are tuned inerter-based dampers (TIBDs) that can utilize amplified apparent mass and tuning effects. This study investigated the use of multiple TIBDs to mitigate the seismic responses of multi-degree-of-freedom (MDOF) structures. The locations and modes for tuning the TIBDs were analyzed by defining a placement index based on the H2 norm. The parameters of TVMDs and TIDs distributed throughout the structure and tuned to multiple modes were optimized by minimizing the H2 performance of the objective responses. The equivalent stiffness and damping of the TVMD and TID were considered to demonstrate TIBD control mechanisms, such as significant additional damping at the resonance frequency. As examples, 3-story and 10-story buildings were subjected to earthquakes with different spectra characteristics to validate the effectiveness of TIBD schemes. The results showed that distributed TIBDs tuned to properly selected modes significantly reduce the root-mean-square (RMS) responses of displacement and acceleration and perform superior than the viscous dampers and viscous mass dampers in reducing the peak displacement.
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      Design and Evaluation of Tuned Inerter-Based Dampers for the Seismic Control of MDOF Structures

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4244559
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    • Journal of Structural Engineering

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    contributor authorYongkui Wen
    contributor authorZhengqing Chen
    contributor authorXugang Hua
    date accessioned2017-12-30T13:01:05Z
    date available2017-12-30T13:01:05Z
    date issued2017
    identifier other%28ASCE%29ST.1943-541X.0001680.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4244559
    description abstractThe tuned viscous mass damper (TVMD) and tuned inerter damper (TID) are tuned inerter-based dampers (TIBDs) that can utilize amplified apparent mass and tuning effects. This study investigated the use of multiple TIBDs to mitigate the seismic responses of multi-degree-of-freedom (MDOF) structures. The locations and modes for tuning the TIBDs were analyzed by defining a placement index based on the H2 norm. The parameters of TVMDs and TIDs distributed throughout the structure and tuned to multiple modes were optimized by minimizing the H2 performance of the objective responses. The equivalent stiffness and damping of the TVMD and TID were considered to demonstrate TIBD control mechanisms, such as significant additional damping at the resonance frequency. As examples, 3-story and 10-story buildings were subjected to earthquakes with different spectra characteristics to validate the effectiveness of TIBD schemes. The results showed that distributed TIBDs tuned to properly selected modes significantly reduce the root-mean-square (RMS) responses of displacement and acceleration and perform superior than the viscous dampers and viscous mass dampers in reducing the peak displacement.
    publisherAmerican Society of Civil Engineers
    titleDesign and Evaluation of Tuned Inerter-Based Dampers for the Seismic Control of MDOF Structures
    typeJournal Paper
    journal volume143
    journal issue4
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)ST.1943-541X.0001680
    page04016207
    treeJournal of Structural Engineering:;2017:;Volume ( 143 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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