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Wavelet transformation in damage identification by dynamic tests
Author(s) -
KnitterPiatkowska Anna,
Garstecki Andrzej
Publication year - 2004
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200410183
Subject(s) - wavelet , reflection (computer programming) , transformation (genetics) , wavelet transform , stiffness , acceleration , reduction (mathematics) , diffraction , continuous wavelet transform , domain (mathematical analysis) , structural engineering , acoustics , physics , mathematical analysis , optics , mathematics , discrete wavelet transform , computer science , geometry , engineering , classical mechanics , artificial intelligence , biochemistry , chemistry , gene , programming language
The paper presents the problem of damage detection basing on the phenomenon of reflection and diffraction of waves at damage boundaries. Elastic waves in plate structures are considered. Damage is modeled as stiffness reduction at a small domain. One‐dimensional discrete signals, representing the velocity or acceleration measured at specified time and plate sections are analyzed using wavelet transform. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)