Szczegóły publikacji
Opis bibliograficzny
Vibration frequency-based optimal baseline selection for damage detection in SHM / Adam MACHYNIA, Jakub SPYTEK, Kajetan DZIEDZIECH, Krzysztof HOLAK, Ziemowit DWORAKOWSKI // W: European Workshop on Structural Health Monitoring : EWSHM 2022 : [10th European Workshop on Structural Health Monitoring : Palermo, Italy, 4-7 July 2022], Vol. 2 / eds. Piervincenzo Rizzo, Alberto Milazzo. — Cham : Springer Nature Switzerland, cop. 2023. — (Lecture Notes in Civil Engineering ; ISSN 2366-2557 ; vol. 254). — ISBN: 978-3-031-07257-4; e-ISBN: 978-3-031-07258-1. — S. 438–445. — Bibliogr., Abstr. — Publikacja dostępna online od: 2022-06-16
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 140772 |
|---|---|
| Data dodania do BaDAP | 2023-09-19 |
| DOI | 10.1007/978-3-031-07258-1_45 |
| Rok publikacji | 2023 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Springer |
| Czasopismo/seria | Lecture Notes in Civil Engineering |
Abstract
Damage detection often requires selecting a reference case to which examined instance is compared. This step is important as environmental and operational conditions should correspond in both cases. Commonly, selecting a reference case for damage detection in SHM is performed manually. As this approach is not effective, we introduce the Optimal Baseline Selection method based on analysis of frequency maps of examined structure. The operating object is recorded with the use of a high-speed camera. Vibrations are analyzed using the optical flow technique. The mean frequencies of motion in selected bands are calculated for each pixel. Frequency maps are obtained independently for vertical and horizontal directions of motion, and they are further processed separately. The analyzed frequency map is compared to the maps in a reference set to find the most similar one. This is basically achieved by computing differences between histograms of maps and further calculating statistical measures. Finally, the results obtained for individual directions of motion are combined. The method is demonstrated by an example of a compressor operating under different pressures and damages.
