Improved substructuring method for calculation of eigensensitivity

Shun Weng, Tuoyu Jiang, Hongping Zhu, Ling Mao, Yong Xia

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

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 are 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.
Original languageEnglish
Title of host publicationProceedings of the 12th International Symposium on Structural Engineering, ISSE 2012
Pages1581-1588
Number of pages8
Publication statusPublished - 1 Dec 2012
Event12th International Symposium on Structural Engineering, ISSE 2012 - Wuhan, China
Duration: 17 Nov 201219 Nov 2012

Conference

Conference12th International Symposium on Structural Engineering, ISSE 2012
Country/TerritoryChina
CityWuhan
Period17/11/1219/11/12

Keywords

  • Eigensensitivity
  • Eigensolution derivative
  • Residual flexibility
  • Substructuring method

ASJC Scopus subject areas

  • Civil and Structural Engineering

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