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    A Multi-Layer Parallelogram Flexure Architecture for Higher Out-of-Plane Load Bearing Stiffness

    Source: Journal of Mechanical Design:;2025:;volume( 147 ):;issue: 007::page 73302-1
    Author:
    Radgolchin, Moeen
    ,
    Rath, Siddharth
    ,
    Awtar, Shorya
    DOI: 10.1115/1.4067452
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Parallelogram flexure mechanism (PFM) is a common flexure module that is widely used as a building block in the design and manufacturing of flexure-based XY motion stages that provide in-plane degrees-of-freedom (DoFs). In such motion stages, low in-plane stiffness along the DoF helps increase the DoF range of motion and reduce the actuation effort. At the same time, high out-of-plane stiffness is paramount to suppress out-of-plane parasitic motions, support heavy payloads, and mitigate the negative impacts of out-of-plane resonant modes. Achieving both of these design objectives simultaneously is extremely challenging in PFMs and flexure mechanisms comprising PFMs due to the inherent tradeoff between the in-plane and out-of-plane stiffnesses. This paper resolves this tradeoff by proposing a novel multi-layer PFM architecture, referred to as the sandwich PFM, that achieves significant improvements in the out-of-plane translational and rotational stiffnesses compared to conventional single-layer PFMs without impacting the in-plane DoF stiffness. Analytical models will be derived for the in-plane and out-of-plane stiffnesses of the sandwich PFM, which closely match the Finite Element Analysis (FEA) results. Several design insights into the performance of the sandwich PFM are discussed using the analytical stiffness models, and a general procedure is proposed to design a sandwich PFM.
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      A Multi-Layer Parallelogram Flexure Architecture for Higher Out-of-Plane Load Bearing Stiffness

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    contributor authorRadgolchin, Moeen
    contributor authorRath, Siddharth
    contributor authorAwtar, Shorya
    date accessioned2025-04-21T10:39:04Z
    date available2025-04-21T10:39:04Z
    date copyright1/16/2025 12:00:00 AM
    date issued2025
    identifier issn1050-0472
    identifier othermd_147_7_073302.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4306623
    description abstractParallelogram flexure mechanism (PFM) is a common flexure module that is widely used as a building block in the design and manufacturing of flexure-based XY motion stages that provide in-plane degrees-of-freedom (DoFs). In such motion stages, low in-plane stiffness along the DoF helps increase the DoF range of motion and reduce the actuation effort. At the same time, high out-of-plane stiffness is paramount to suppress out-of-plane parasitic motions, support heavy payloads, and mitigate the negative impacts of out-of-plane resonant modes. Achieving both of these design objectives simultaneously is extremely challenging in PFMs and flexure mechanisms comprising PFMs due to the inherent tradeoff between the in-plane and out-of-plane stiffnesses. This paper resolves this tradeoff by proposing a novel multi-layer PFM architecture, referred to as the sandwich PFM, that achieves significant improvements in the out-of-plane translational and rotational stiffnesses compared to conventional single-layer PFMs without impacting the in-plane DoF stiffness. Analytical models will be derived for the in-plane and out-of-plane stiffnesses of the sandwich PFM, which closely match the Finite Element Analysis (FEA) results. Several design insights into the performance of the sandwich PFM are discussed using the analytical stiffness models, and a general procedure is proposed to design a sandwich PFM.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA Multi-Layer Parallelogram Flexure Architecture for Higher Out-of-Plane Load Bearing Stiffness
    typeJournal Paper
    journal volume147
    journal issue7
    journal titleJournal of Mechanical Design
    identifier doi10.1115/1.4067452
    journal fristpage73302-1
    journal lastpage73302-12
    page12
    treeJournal of Mechanical Design:;2025:;volume( 147 ):;issue: 007
    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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