Dynamic Condensation for Eigensolutions and Eigensensitivities

Shun Weng, Hongping Zhu, Yong Xia

Research output: Chapter in book / Conference proceedingChapter in an edited book (as author)Academic researchpeer-review

Abstract

The substructuring methods reduce the global model into a modal space spanned by a few substructural master modes, based on which the dynamic analysis, sensitivity analysis, and model updating are implemented accurately and efficiently. In this chapter, model condensation method is introduced to compute the eigensolutions and eigensensitivities of large-scale structures. The model condensation method reduces the global model in the physical coordinates determined by a few master DOFs. If the DOFs associated with the selected elemental parameter are chosen as the additional master DOFs, the eigensensitivity of the reduced model is obtained by directly performing iterations on the stiffness and mass matrices of the master DOFs.

Original languageEnglish
Title of host publicationEngineering Applications of Computational Methods
PublisherSpringer Nature
Pages173-192
Number of pages20
DOIs
Publication statusPublished - Jul 2023

Publication series

NameEngineering Applications of Computational Methods
Volume15
ISSN (Print)2662-3366
ISSN (Electronic)2662-3374

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Modelling and Simulation
  • Engineering (miscellaneous)
  • Computational Theory and Mathematics

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