Damage Location in Beam and Plate Structures by Wavelet Analysis of Experimentally Determined Mode Shapes

Magdalena Rucka; Krzysztof Wilde

doi:10.4028/www.scientific.net/KEM.293-294.313

Paper Titles

Damage Analysis of Internal Surface Flaws Using Thermoelastic Stress Analysis
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Novel Vibration-Based Methods for Detecting Delamination Damage in Composite Plate and Shell Laminates
p.289

Finite Element Model Updating for Damage Localisation and Quantification Using Experimental Modal Data
p.297

Benchmark of Damage Localisation Algorithms Using Mode Shape Data
p.305

Damage Location in Beam and Plate Structures by Wavelet Analysis of Experimentally Determined Mode Shapes
p.313

An Investigation on Vibration-Based Damage Detection in an Aircraft Wing Scaled Model
p.321

Example of Application of Experimental Modal Model for Damage Detection for a Rotating Shaft
p.329

Dynamics of Large Power Rotating Machine with Cracked Shaft
p.337

Application of Degree of Cyclostationarity in Rolling Element Bearing Diagnosis
p.347

HomeKey Engineering MaterialsKey Engineering Materials Vols. 293-294Damage Location in Beam and Plate Structures by...

Damage Location in Beam and Plate Structures by Wavelet Analysis of Experimentally Determined Mode Shapes

Abstract:

In this paper a method for estimating the damage location in beam and plate structures is presented. A plexiglas cantilever beam and a plexiglas plate with one fixed boundary condition are tested experimentally. The dynamic response of the structures is analyzed using one and twodimensional continuous wavelet transforms of the structural mode shapes. The location of the crack is indicated by a peak in the spatial variation of the transformed response. The proposed wavelet analysis can effectively identify the crack position without knowledge of either the structure characteristics or its mathematical model. The practical application of the technique for civil engineering structures requires only the response of the structure.

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Periodical:

Key Engineering Materials (Volumes 293-294)

Pages:

313-320

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.293-294.313

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Online since:

September 2005

Authors:

Magdalena Rucka, Krzysztof Wilde

Keywords:

Continuous Wavelet Transform, Damage Location, Nondestructive Testing (NDT)

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