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 Efficient Decoupled Reliability-Based Topology Optimization Method Based on a Performance Shift Strategy

    Source: Journal of Mechanical Design:;2023:;volume( 145 ):;issue: 006::page 61705-1
    Author:
    Zheng, Jing
    ,
    Yuan, Liang
    ,
    Jiang, Chao
    ,
    Zhang, Zhe
    DOI: 10.1115/1.4056999
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: In this paper, a new efficient reliability-based topology optimization (RBTO) method is proposed for structures, in which the double-loop optimization is equivalently decoupled into a sequential process based on a performance shift strategy. First, a volume minimization RBTO formulation is built for structures considering displacement or compliance reliability constraints. Second, an efficient decoupling scheme is proposed to turn the double-loop RBTO into a series of deterministic topology optimization and reliability analysis. For the reliability analysis, the reliability probability is calculated based on the probability distribution function of the performance function, and the probability distribution function can be solved by the maximum entropy method based on the raw moments calculated by the multiplicative dimension reduction method. A performance shift strategy is then applied to build an equivalence between probabilistic constraint and deterministic constraint to formulate the deterministic topology optimization. Thirdly, the adjoint variable method is applied to obtain the sensitivity information for topological design variables, and a gradient-based optimization algorithm is used to update the design variables. Finally, four typical numerical examples are used to verify the advantage of the proposed method. Compared with the traditional sequential optimization and reliability assessment (SORA) method, the proposed RBTO method results in a design with a 5.4% smaller volume value to reach the same reliability index requirement for the cantilever beam, and the function calls are 354 times less than that of the SORA method.
    • Download: (896.5Kb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      An Efficient Decoupled Reliability-Based Topology Optimization Method Based on a Performance Shift Strategy

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4292399
    Collections
    • Journal of Mechanical Design

    Show full item record

    contributor authorZheng, Jing
    contributor authorYuan, Liang
    contributor authorJiang, Chao
    contributor authorZhang, Zhe
    date accessioned2023-08-16T18:43:53Z
    date available2023-08-16T18:43:53Z
    date copyright3/16/2023 12:00:00 AM
    date issued2023
    identifier issn1050-0472
    identifier othermd_145_6_061705.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4292399
    description abstractIn this paper, a new efficient reliability-based topology optimization (RBTO) method is proposed for structures, in which the double-loop optimization is equivalently decoupled into a sequential process based on a performance shift strategy. First, a volume minimization RBTO formulation is built for structures considering displacement or compliance reliability constraints. Second, an efficient decoupling scheme is proposed to turn the double-loop RBTO into a series of deterministic topology optimization and reliability analysis. For the reliability analysis, the reliability probability is calculated based on the probability distribution function of the performance function, and the probability distribution function can be solved by the maximum entropy method based on the raw moments calculated by the multiplicative dimension reduction method. A performance shift strategy is then applied to build an equivalence between probabilistic constraint and deterministic constraint to formulate the deterministic topology optimization. Thirdly, the adjoint variable method is applied to obtain the sensitivity information for topological design variables, and a gradient-based optimization algorithm is used to update the design variables. Finally, four typical numerical examples are used to verify the advantage of the proposed method. Compared with the traditional sequential optimization and reliability assessment (SORA) method, the proposed RBTO method results in a design with a 5.4% smaller volume value to reach the same reliability index requirement for the cantilever beam, and the function calls are 354 times less than that of the SORA method.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAn Efficient Decoupled Reliability-Based Topology Optimization Method Based on a Performance Shift Strategy
    typeJournal Paper
    journal volume145
    journal issue6
    journal titleJournal of Mechanical Design
    identifier doi10.1115/1.4056999
    journal fristpage61705-1
    journal lastpage61705-12
    page12
    treeJournal of Mechanical Design:;2023:;volume( 145 ):;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