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    A Spatial Eight Bar Linkage and Its Association With the Deployable Platonic Mechanisms

    Source: Journal of Mechanisms and Robotics:;2014:;volume( 006 ):;issue: 002::page 21010
    Author:
    Wei, Guowu
    ,
    Dai, Jian S.
    DOI: 10.1115/1.4025472
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper presents for the first time a novel two degrees of freedom (2DOF) singlelooped dualplanesymmetric spatial eightbar linkage with exact straightline motion. Geometry and kinematics of the eightbar linkage are investigated and closedform equations are presented revealing the exact straightline motion feature of the linkage on the condition that two symmetric inputs are given. In order to secure two symmetric inputs, a geared eightbar linkage is then proposed converting the linkage into a 1DOF linkage of exact straightline motion. The direction of the straightline motion produced by the proposed eightbar linkage is changeable and is only dependent on the structure parameters of the two pairs of Vshaped RR dyads of the linkage. Further, the proposed eightbar linkage is applied to the synthesis and construction of a group of deployable Platonic mechanisms with radially reciprocating motion. The virtualcenterbased (VCB) method is presented for the synthesis and prototypes of the deployable Platonic mechanisms are fabricated verifying the mobility and motion of the proposed mechanisms.
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      A Spatial Eight Bar Linkage and Its Association With the Deployable Platonic Mechanisms

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    http://yetl.yabesh.ir/yetl1/handle/yetl/155742
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    contributor authorWei, Guowu
    contributor authorDai, Jian S.
    date accessioned2017-05-09T01:10:51Z
    date available2017-05-09T01:10:51Z
    date issued2014
    identifier issn1942-4302
    identifier otherjmr_006_02_021010.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/155742
    description abstractThis paper presents for the first time a novel two degrees of freedom (2DOF) singlelooped dualplanesymmetric spatial eightbar linkage with exact straightline motion. Geometry and kinematics of the eightbar linkage are investigated and closedform equations are presented revealing the exact straightline motion feature of the linkage on the condition that two symmetric inputs are given. In order to secure two symmetric inputs, a geared eightbar linkage is then proposed converting the linkage into a 1DOF linkage of exact straightline motion. The direction of the straightline motion produced by the proposed eightbar linkage is changeable and is only dependent on the structure parameters of the two pairs of Vshaped RR dyads of the linkage. Further, the proposed eightbar linkage is applied to the synthesis and construction of a group of deployable Platonic mechanisms with radially reciprocating motion. The virtualcenterbased (VCB) method is presented for the synthesis and prototypes of the deployable Platonic mechanisms are fabricated verifying the mobility and motion of the proposed mechanisms.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA Spatial Eight Bar Linkage and Its Association With the Deployable Platonic Mechanisms
    typeJournal Paper
    journal volume6
    journal issue2
    journal titleJournal of Mechanisms and Robotics
    identifier doi10.1115/1.4025472
    journal fristpage21010
    journal lastpage21010
    identifier eissn1942-4310
    treeJournal of Mechanisms and Robotics:;2014:;volume( 006 ):;issue: 002
    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
    yabeshDSpacePersian