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    A Computationally Efficient Objective Function for the Evaluation of the Natural Frequency in Structural Modification and Optimization Problems

    Source: Journal of Vibration and Acoustics:;1997:;volume( 119 ):;issue: 004::page 618
    Author:
    Tien-Sheng Chang
    ,
    E. B. Magrab
    DOI: 10.1115/1.2889771
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A highly computationally efficient objective function for measuring the change in the natural frequency when a structure is modified is introduced. When the optimization of an orthotropic plate is studied, a decrease in CPU time by at least a factor of 40 is obtained when the new objective function is compared to that derived from the minor structural modification technique. The greater the number of finite elements affected by the design changes the higher the factor of improvement will be. This new objective function has the additional advantage that it can be used for substantial modifications to the original design.
    keyword(s): Optimization , Design AND Finite element analysis ,
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      A Computationally Efficient Objective Function for the Evaluation of the Natural Frequency in Structural Modification and Optimization Problems

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    https://yetl.yabesh.ir/yetl1/handle/yetl/119691
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    contributor authorTien-Sheng Chang
    contributor authorE. B. Magrab
    date accessioned2017-05-08T23:55:16Z
    date available2017-05-08T23:55:16Z
    date copyrightOctober, 1997
    date issued1997
    identifier issn1048-9002
    identifier otherJVACEK-28840#618_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/119691
    description abstractA highly computationally efficient objective function for measuring the change in the natural frequency when a structure is modified is introduced. When the optimization of an orthotropic plate is studied, a decrease in CPU time by at least a factor of 40 is obtained when the new objective function is compared to that derived from the minor structural modification technique. The greater the number of finite elements affected by the design changes the higher the factor of improvement will be. This new objective function has the additional advantage that it can be used for substantial modifications to the original design.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA Computationally Efficient Objective Function for the Evaluation of the Natural Frequency in Structural Modification and Optimization Problems
    typeJournal Paper
    journal volume119
    journal issue4
    journal titleJournal of Vibration and Acoustics
    identifier doi10.1115/1.2889771
    journal fristpage618
    journal lastpage623
    identifier eissn1528-8927
    keywordsOptimization
    keywordsDesign AND Finite element analysis
    treeJournal of Vibration and Acoustics:;1997:;volume( 119 ):;issue: 004
    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