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    Negative Stiffness Building Blocks for Statically Balanced Compliant Mechanisms: Design and Testing

    Source: Journal of Mechanisms and Robotics:;2010:;volume( 002 ):;issue: 004::page 41007
    Author:
    Karin Hoetmer
    ,
    Geoffrey Woo
    ,
    Just Herder
    ,
    Charles Kim
    DOI: 10.1115/1.4002247
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: In some applications, nonconstant energy storage in the flexible segments of compliant mechanisms is undesired, particularly when high efficiency or high-fidelity force feedback is required. In these cases, the principle of static balancing can be applied, where a balancing segment with a negative stiffness is added to cancel the positive stiffness of the compliant mechanism. This paper presents a strategy for the design of statically balanced compliant mechanisms and validates it through the fabrication and testing of proof-of-concept prototypes. Three compliant mechanisms are statically balanced by the use of compressed plate springs. All three balanced mechanisms have approximately zero stiffness but suffer from a noticeable hysteresis loop and finite offset from zero force. Design considerations are given for the design and fabrication of statically balanced compliant mechanisms.
    keyword(s): Force , Blocks (Building materials) , Springs , Stiffness , Mechanisms , Compliant mechanisms , Design , Testing , Displacement , Manufacturing AND Engineering prototypes ,
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      Negative Stiffness Building Blocks for Statically Balanced Compliant Mechanisms: Design and Testing

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/144300
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    • Journal of Mechanisms and Robotics

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    contributor authorKarin Hoetmer
    contributor authorGeoffrey Woo
    contributor authorJust Herder
    contributor authorCharles Kim
    date accessioned2017-05-09T00:39:50Z
    date available2017-05-09T00:39:50Z
    date copyrightNovember, 2010
    date issued2010
    identifier issn1942-4302
    identifier otherJMROA6-28005#041007_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/144300
    description abstractIn some applications, nonconstant energy storage in the flexible segments of compliant mechanisms is undesired, particularly when high efficiency or high-fidelity force feedback is required. In these cases, the principle of static balancing can be applied, where a balancing segment with a negative stiffness is added to cancel the positive stiffness of the compliant mechanism. This paper presents a strategy for the design of statically balanced compliant mechanisms and validates it through the fabrication and testing of proof-of-concept prototypes. Three compliant mechanisms are statically balanced by the use of compressed plate springs. All three balanced mechanisms have approximately zero stiffness but suffer from a noticeable hysteresis loop and finite offset from zero force. Design considerations are given for the design and fabrication of statically balanced compliant mechanisms.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleNegative Stiffness Building Blocks for Statically Balanced Compliant Mechanisms: Design and Testing
    typeJournal Paper
    journal volume2
    journal issue4
    journal titleJournal of Mechanisms and Robotics
    identifier doi10.1115/1.4002247
    journal fristpage41007
    identifier eissn1942-4310
    keywordsForce
    keywordsBlocks (Building materials)
    keywordsSprings
    keywordsStiffness
    keywordsMechanisms
    keywordsCompliant mechanisms
    keywordsDesign
    keywordsTesting
    keywordsDisplacement
    keywordsManufacturing AND Engineering prototypes
    treeJournal of Mechanisms and Robotics:;2010:;volume( 002 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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