Article ID Journal Published Year Pages File Type
510692 Computers & Structures 2013 11 Pages PDF
Abstract

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.

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Physical Sciences and Engineering Computer Science Computer Science Applications
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