Szczegóły publikacji
Opis bibliograficzny
Application of vision based damage detection for real civil engineering structure / Piotr KOHUT, Krzysztof HOLAK, Tadeusz UHL, Jędrzej Mączak, Przemysław Szulim // Key Engineering Materials ; ISSN 1013-9826. — 2014 — vol. 588, s. 22–32. — Bibliogr. s. 31–32. — Smart diagnostics V : selected, peer reviewed papers from the 5th International Congress of Technical Diagnostics, September 3-5, 2012, Krakow, Poland / ed. Tadeusz Uhl. — ISBN 978-3-03785-889-9
Autorzy (5)
- AGHKohut Piotr Andrzej
- AGHHolak Krzysztof
- AGHUhl Tadeusz
- Mączak Jędrzej
- Szulim Przemysław
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 78635 |
|---|---|
| Data dodania do BaDAP | 2014-01-13 |
| Tekst źródłowy | URL |
| DOI | 10.4028/www.scientific.net/KEM.588.22 |
| Rok publikacji | 2014 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Key Engineering Materials |
Abstract
In this paper, the developed vision system for in-plane measurement of a civil engineering structure's displacement fields is presented. The deflection curve is obtained as a result of analysis of two images of the construction: the reference one and the one acquired after application of the load. The principle of the method is calculation of the object's point displacement by means of a normalized cross correlation coefficient. Perspective distortions of the construction's image are removed by means of homography mapping, which allows two photographs of the object to be taken from two distinct points in space. There are discussed developed methodology, software tool and experimental results obtained from tests made on real civil engineering structure (girder) and compared with results received from measurement equipment integrated with girder. The system installed on the test stand and used for verification of optical methods consisted of a network of measurement nodes located in key points of the structure. Sensors measuring local deformations using strain gauges as well as the accelerometers measuring buckling of structure's elements were placed in each node. Additionally a linear transducer for measurement of deformation of the lower beam of structure under investigation was used.