A multistage FE updating procedure for damage identification in large-scale structures based on multiobjective evolutionary optimization

Ruiz Perea, Antonio and Perera Velamazán, Ricardo (2008). A multistage FE updating procedure for damage identification in large-scale structures based on multiobjective evolutionary optimization. "Mechanical Systems and Signal Processing", v. 22 (n. 4); pp. 970-991. ISSN 0888-3270. https://doi.org/10.1016/j.ymssp.2007.10.004.

Description

Title: A multistage FE updating procedure for damage identification in large-scale structures based on multiobjective evolutionary optimization
Author/s:
  • Ruiz Perea, Antonio
  • Perera Velamazán, Ricardo
Item Type: Article
Título de Revista/Publicación: Mechanical Systems and Signal Processing
Date: May 2008
ISSN: 0888-3270
Volume: 22
Subjects:
Freetext Keywords: Multistage identification; damage detection; model updating; modal flexibility; multiobjective optimization; evolutionary algorithms
Faculty: E.T.S.I. Minas (UPM)
Department: Matemática Aplicada a los Recursos Naturales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This study aims to develop a multistage scheme for damage detection for large structures based on experimental modal data and on finite element (FE) model updating methods applied on simple FE models. In the first stage, occurrence and approximate location of damage is performed by using damage functions in order to decrease the number of parameters to be updated. The goal in the second stage is to identify the specific damaged members and damage extent by considering only the members belonging to the regions detected as damage in the first stage. To improve identification, the optimization procedure is formulated in a multiobjective context solved by using evolutionary algorithms. Modal flexibilities and a damage location criterion dependent on frequencies and mode shapes are used as two objective functions of the multiobjective problem. The proposal is implemented in simulated case studies and in a case study of a real bridge experimentally tested with successful results.

More information

Item ID: 3042
DC Identifier: http://oa.upm.es/3042/
OAI Identifier: oai:oa.upm.es:3042
DOI: 10.1016/j.ymssp.2007.10.004
Official URL: http://www.elsevier.com/wps/find/journaldescription.cws_home/622912/description#description
Deposited by: Memoria Investigacion
Deposited on: 07 May 2010 11:47
Last Modified: 20 Apr 2016 12:37
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