کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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510692 | 865783 | 2013 | 11 صفحه PDF | دانلود رایگان |
Calculation of eigensensitivity is usually time-consuming for a large-scale structure. This paper develops a substructuring method for computing the first, second and high order eigensensitivity. The local area of a structure is treated as an independent substructure to be analyzed. The eigensensitivity of global structure with respect to a design parameter is calculated from the eigensensitivity of a particular substructure that contains the design parameter, thus allowing a significant reduction in computational cost. The accuracy and efficiency of the substructuring method is proved by a frame structure and a highway bridge.
► A substructuring method is proposed for computing the first, second and high order eigensensitivity.
► The local area of a structure is treated as an independent substructure to be analyzed.
► The eigensensitivity of global structure is calculated from a concerned substructure.
► The computation efficiency in calculation of eigensensitivity is improved significantly.
Journal: Computers & Structures - Volume 117, February 2013, Pages 23–33