Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
510692 | Computers & Structures | 2013 | 11 Pages |
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.