Publication detail

Inverse analysis and optimization-based model updating for structural damage detection

LEHKÝ, D., ŠPLÍCHAL, B., LAMPEROVÁ, K., SLOWIK, O.,

Original Title

Inverse analysis and optimization-based model updating for structural damage detection

Type

conference paper

Language

English

Original Abstract

Structural health monitoring and early detection of structural damage is extremely important to maintain and preserve the service life of civil engineering structures. Identification of structural damage is usually performed using non-destructive vibration experiments combined with a mathematical procedure called model updating. The finite element model of the investigated structure is updated by incrementally adjusting its parameters so that the model responses gradually approach those of the real possibly damaged structure under investigation. This paper describes the use of two model updating methods. The first method employs metaheuristic optimization technique aimed multilevel sampling to efficiently search the design parameter space to achieve the best match between the deformed structure and its model. The second method approaches model updating as an inverse problem and uses machine learning-based model to approximate inverse relationship between structural response and structural parameters. Both methods are applied to damage identification of single- and double-span steel trusses. Finally, initial results of the hybrid method are presented. The effect of the damage rate and location on the identification speed and the accuracy of the solution is investigated and discussed.

Keywords

Damage identification, Model updating, Artificial neural network, Aimed multilevel sampling, Structural vibration, Modal parameters

Authors

LEHKÝ, D., ŠPLÍCHAL, B., LAMPEROVÁ, K., SLOWIK, O.,

Released

25. 9. 2023

Publisher

Ernst & Sohn

Location

Berlin, Germany

ISBN

2509-7075

Periodical

ce/papers

Year of study

6

Number

5

State

Federal Republic of Germany

Pages from

1228

Pages to

1233

Pages count

6

URL

https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.2136

BibTex

@inproceedings{BUT185582,
  author="David {Lehký} and Bohumil {Šplíchal} and Katarína {Lamperová} and Ondřej {Slowik}",
  title="Inverse analysis and optimization-based model updating for structural damage detection",
  booktitle="EUROSTRUCT 2023 - European Association on Quality Control of  Bridges and Structures: Digital Transformation in Sustainability",
  year="2023",
  journal="ce/papers",
  volume="6",
  number="5",
  pages="1228--1233",
  publisher="Ernst & Sohn",
  address="Berlin, Germany",
  doi="10.1002/cepa.2136",
  issn="2509-7075",
  url="https://onlinelibrary.wiley.com/doi/epdf/10.1002/cepa.2136"
}