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Publikācija: Accuracy of Vibration Based Identification Technique Used for Damage Detection

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Nosaukums oriģinālvalodā Accuracy of Vibration Based Identification Technique Used for Damage Detection
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.3. Mašīnbūve un mehānika
Autori Miroslaw Wesolowski
Sandris Ručevskis
Jevgenijs Barkanovs
Andris Čate
Atslēgas vārdi .
Anotācija During the last two decades structural damage identification has become an important research area for civil, mechanical, and aerospace constructions. A great variety of methods have been proposed for damage detection by using dynamic structure parameters. Most of them require modal data of the healthy state of structure as a reference. In the present paper an identification technique for damage detection which utilizes mode shape curvatures obtained from vibration analysis of damaged laminated composite beam is proposed. Since the present procedure uses only the experimentally measured natural frequencies and their corresponding mode shapes, high accuracy of the vibration sensing is needed for the modal data. Therefore the damage detection is preceded by an investigation of experimental errors influence on dynamic characteristics of a beam. Examples of the detection of damage introduced by low-velocity impact are described.
Atsauce Wesolowski, M., Ručevskis, S., Barkanovs, J., Čate, A. Accuracy of Vibration Based Identification Technique Used for Damage Detection. No: The 20th Annual International SICOMP Conference on Manufacturing and Design of Composites: Book of Abstracts, Zviedrija, Pitea, 8.-9. jūnijs, 2009. Pitea: Swerea SICOMP, 2009, 1.-2.lpp.
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