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    Implementable Bio-Inspired Passive Negative Spring Actuator for Full-Scale Structural Control under Seismic Excitation

    Source: Journal of Structural Engineering:;2016:;Volume ( 142 ):;issue: 001
    Author:
    Isaac Y. Kwon
    ,
    Henry T. Yang
    ,
    Paul K. Hansma
    ,
    Connor J. Randall
    DOI: 10.1061/(ASCE)ST.1943-541X.0001323
    Publisher: American Society of Civil Engineers
    Abstract: A bio-inspired passive negative spring actuator inspired by an energy-dissipating mechanism called sacrificial bonds and hidden length is designed, fabricated and implemented in a test case of a three-story structural model for testing its performance and demonstrating the effectiveness as a passive controller. Specifically, a unique design of a negative spring actuator is developed and combined with a viscous damper to exhibit aspects of the force-displacement relation of negative sacrificial bonds and hidden length. This novel actuator can output a unique force-displacement profile, capable of large control forces, making the bio-inspired passive actuator practical for implementation in real structures. Results obtained from numerical simulation were validated experimentally on a model structure. The results showed that the bio-inspired passive negative spring actuator has comparable structural control performance to state-of-the-art semiactive actuators. Therefore, the actuator could be a practical, low-cost, and effective passive-control device for use in civil, mechanical, aerospace, and other structures.
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      Implementable Bio-Inspired Passive Negative Spring Actuator for Full-Scale Structural Control under Seismic Excitation

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    http://yetl.yabesh.ir/yetl1/handle/yetl/80939
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    • Journal of Structural Engineering

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    contributor authorIsaac Y. Kwon
    contributor authorHenry T. Yang
    contributor authorPaul K. Hansma
    contributor authorConnor J. Randall
    date accessioned2017-05-08T22:27:32Z
    date available2017-05-08T22:27:32Z
    date copyrightJanuary 2016
    date issued2016
    identifier other45738030.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/80939
    description abstractA bio-inspired passive negative spring actuator inspired by an energy-dissipating mechanism called sacrificial bonds and hidden length is designed, fabricated and implemented in a test case of a three-story structural model for testing its performance and demonstrating the effectiveness as a passive controller. Specifically, a unique design of a negative spring actuator is developed and combined with a viscous damper to exhibit aspects of the force-displacement relation of negative sacrificial bonds and hidden length. This novel actuator can output a unique force-displacement profile, capable of large control forces, making the bio-inspired passive actuator practical for implementation in real structures. Results obtained from numerical simulation were validated experimentally on a model structure. The results showed that the bio-inspired passive negative spring actuator has comparable structural control performance to state-of-the-art semiactive actuators. Therefore, the actuator could be a practical, low-cost, and effective passive-control device for use in civil, mechanical, aerospace, and other structures.
    publisherAmerican Society of Civil Engineers
    titleImplementable Bio-Inspired Passive Negative Spring Actuator for Full-Scale Structural Control under Seismic Excitation
    typeJournal Paper
    journal volume142
    journal issue1
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)ST.1943-541X.0001323
    treeJournal of Structural Engineering:;2016:;Volume ( 142 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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