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Numerical study on damage identification using fractal theory and curvature method

  • Yonghui An*
  • , Jinping Ou
  • *Corresponding author for this work
  • Dalian University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Simply supported beam bridges are the most widely distributed kind of bridges, which are most commonly used in short and medium span bridges. Therefore, it is imperative to study their damage detection methods which can be used in engineering. To solve this problem, on the basis of fractal theory and curvature mode shapes method, this paper presents a damage identification method of simply supported beams: curvature difference method of waveform fractal dimension. Based on a numerical simply supported beam model, numerical simulation results using the technique under pulse excitation indicate that the proposed method can not only used in damage localization, but also in damage severity identification of the damaged elements. Moreover, effects of different excitation methods on results are examined. The proposed approach exhibits the insusceptibility to noise.

Original languageEnglish
Title of host publication2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings
Pages3286-3289
Number of pages4
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Lushan, China
Duration: 22 Apr 201124 Apr 2011

Publication series

Name2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings

Conference

Conference2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011
Country/TerritoryChina
CityLushan
Period22/04/1124/04/11

Keywords

  • curvature
  • damage detection
  • damage localization
  • damage severity
  • fractal
  • simply supported beams

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