0482249 - ÚTAM 2019 RIV HU eng J - Journal Article
Bayer, Jan - Král, J. - Urushadze, Shota
Localization of simulated damage on a steel beam from random vibrations.
Periodica Polytechnica. Civil Engineering. Roč. 62, č. 1 (2018), s. 112-116. ISSN 0553-6626
R&D Projects: GA ČR(CZ) GC17-26353J
Institutional support: RVO:68378297
Keywords : damage localization * change of natural modes * flexibility matrix * flexibility curvatures * case study * damage detection * vibration monitoring
OECD category: Construction engineering, Municipal and structural engineering
Impact factor: 0.976, year: 2018
https://doi.org/10.3311/PPci.10625

The performance of a few localization schemes using measured mode shapes was tested in an experimental case study with respect to the Ultimate Limit State (ULS). The first question to be posed was: Is it possible to indicate and locate damage under laboratory conditions before the ULS is reached? Relatively simple localization criteria were chosen, which do not require extensive FE analysis. A new combination of them, designated here as Combined Localization Criterion (CLI), was proposed that performed well in the presented case. A simple supported beam with the damage progressing in three consecutive stages was used for the experiments. Mode shapes in the range of up to 100 Hz were extracted from the response of the structure to the air stream.
Permanent Link: http://hdl.handle.net/11104/0281980