Model updating based on an affine scaling interior optimization algorithm

Y. X. Zhang, C. X. Jia, Jian Li, B. F. Spencer

Research output: Contribution to journalArticlepeer-review


Finite element model updating is usually considered as an optimization process. Affine scaling interior algorithms are powerful optimization algorithms that have been developed over the past few years. A new finite element model updating method based on an affine scaling interior algorithm and a minimization of modal residuals is proposed in this article, and a general finite element model updating program is developed based on the proposed method. The performance of the proposed method is studied through numerical simulation and experimental investigation using the developed program. The results of the numerical simulation verified the validity of the method. Subsequently, the natural frequencies obtained experimentally from a three-dimensional truss model were used to update a finite element model using the developed program. After updating, the natural frequencies of the truss and finite element model matched well.

Original languageEnglish (US)
Pages (from-to)1379-1395
Number of pages17
JournalEngineering Optimization
Issue number11
StatePublished - Nov 1 2013


  • Affine scaling interior algorithm
  • Conjugate gradient path
  • Modal data
  • Model updating

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Optimization
  • Management Science and Operations Research
  • Industrial and Manufacturing Engineering
  • Applied Mathematics


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