Substructure method to dynamic analysis of local nonlinear structure

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

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

Abstract

The practical civil structures usually have a large number of degrees of freedom while the nonlinear components are spatially localized. The substructure method is proposed to divide the complicated structures into linear and nonlinear substructures. The linear substructures are simplified and analyzed by the condensation methods, while the expensive nonlinear analysis are localized in one or several substructures by employing the improved Newmark - β method. The linear and nonlinear substructures are subsequently reconnected by the displacement and force compatibility to calculate the dynamic responses of the global structure. In addition, the system responses calculated by the substructure method can be used in the system identification of local nonlinear structures. A numerical examples is employed to illustrate the proposed method.
Original languageEnglish
Title of host publicationSHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure
PublisherInternational Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII
Publication statusPublished - 1 Jan 2015
Event7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015 - Torino, Italy
Duration: 1 Jul 20153 Jul 2015

Conference

Conference7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015
Country/TerritoryItaly
CityTorino
Period1/07/153/07/15

Keywords

  • Dynamic response
  • Moving force identification
  • Nonlinear system

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Artificial Intelligence

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