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An Application of the Discrete Wavelet Transform to Damage Detection in Flat Truss Girders


[ 1 ] Instytut Analizy Konstrukcji, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.7] Civil engineering and transport

Year of publication


Chapter type

chapter in monograph / paper

Publication language


  • truss structures
  • finite element method
  • damage detection
  • discrete wavelet transform

EN The paper presents the problem of damage detection in flat truss girders while considering the static external loadings. The presented issue of flat truss girders statics is described and solved by the Finite Element Method (FEM). Damage in truss is modeled as local stiffness reduction of one chord element. The analyses of static structural responses are carried out with the use of Discrete Wavelet Transform (DWT). Signal decomposition according to the Mallat pyramid algorithm is applied. The measured variables are static vertical deflections and angles of rotation. All of them have been established at selected nodes of finite elements. The numerical examples are presented.

Pages (from - to)

47 - 56


Lightweight Structures in Civil Engineering : Contemporary Problems : Monograph

Presented on

XXVII LSCE Lightweight Structures in Civil Engineering, 2-3.12.2021, Łódź, Polska

Ministry points / chapter


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