YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASME
    • Journal of Mechanical Design
    • View Item
    •   YE&T Library
    • ASME
    • Journal of Mechanical Design
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    An Improved Material-Mask Overlay Strategy for Topology Optimization of Structures and Compliant Mechanisms

    Source: Journal of Mechanical Design:;2010:;volume( 132 ):;issue: 006::page 61006
    Author:
    Chandini Jain
    ,
    Anupam Saxena
    DOI: 10.1115/1.4001530
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The honeycomb-based domain representation directly yields checkerboard and point flexure free optimal solutions to various topology design problems without requiring any supplementary suppression method. This is because the root cause behind the appearance of these pathologies, namely, the permitted single-point connectivity between contiguous subregions in rectangular-cell-based representation, is eliminated. The mesh-free material-mask overlay method further promises unadulterated “black and white” solutions in contrast to density interpolation schemes where the material is modeled between the “void” and “filled” states. Here, we propose improvements to the material-mask overlay method by judiciously increasing the number of material masks during a sequence of subsearches for the best solution. We used an alternative, mutation-based zero-order stochastic search, which, through a small population of solution vectors, can yield multiple solutions from a single search for nonconvex topology optimization formulations. Wachspress hexagonal cells are used as finite elements since they offer rich displacement interpolation functions. Singular solutions are penalized and filtered. With the improved material-mask overlay method, we showcase the synthesis using two classical small displacement problems each on optimal stiff structures and compliant mechanisms to illustrate the extraction of pathology-free, “black and white,” and multiple solutions.
    keyword(s): Structures , Overlays (Materials engineering) , Design , Optimization , Displacement , Masks , Topology , Finite element analysis AND Deformation ,
    • Download: (1.044Mb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      An Improved Material-Mask Overlay Strategy for Topology Optimization of Structures and Compliant Mechanisms

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/144210
    Collections
    • Journal of Mechanical Design

    Show full item record

    contributor authorChandini Jain
    contributor authorAnupam Saxena
    date accessioned2017-05-09T00:39:37Z
    date available2017-05-09T00:39:37Z
    date copyrightJune, 2010
    date issued2010
    identifier issn1050-0472
    identifier otherJMDEDB-27925#061006_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/144210
    description abstractThe honeycomb-based domain representation directly yields checkerboard and point flexure free optimal solutions to various topology design problems without requiring any supplementary suppression method. This is because the root cause behind the appearance of these pathologies, namely, the permitted single-point connectivity between contiguous subregions in rectangular-cell-based representation, is eliminated. The mesh-free material-mask overlay method further promises unadulterated “black and white” solutions in contrast to density interpolation schemes where the material is modeled between the “void” and “filled” states. Here, we propose improvements to the material-mask overlay method by judiciously increasing the number of material masks during a sequence of subsearches for the best solution. We used an alternative, mutation-based zero-order stochastic search, which, through a small population of solution vectors, can yield multiple solutions from a single search for nonconvex topology optimization formulations. Wachspress hexagonal cells are used as finite elements since they offer rich displacement interpolation functions. Singular solutions are penalized and filtered. With the improved material-mask overlay method, we showcase the synthesis using two classical small displacement problems each on optimal stiff structures and compliant mechanisms to illustrate the extraction of pathology-free, “black and white,” and multiple solutions.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAn Improved Material-Mask Overlay Strategy for Topology Optimization of Structures and Compliant Mechanisms
    typeJournal Paper
    journal volume132
    journal issue6
    journal titleJournal of Mechanical Design
    identifier doi10.1115/1.4001530
    journal fristpage61006
    identifier eissn1528-9001
    keywordsStructures
    keywordsOverlays (Materials engineering)
    keywordsDesign
    keywordsOptimization
    keywordsDisplacement
    keywordsMasks
    keywordsTopology
    keywordsFinite element analysis AND Deformation
    treeJournal of Mechanical Design:;2010:;volume( 132 ):;issue: 006
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian