Dynamics of a flexible roof test model under ambient vibrations measurements
Authors:
- Fabio Rizzo,
- Chiara Bedon,
- Sulyman Mansour,
- Aleksander Pistol,
- Maria Francesca Sabbà,
- Łukasz Flaga,
- Renata Klaput,
- Dora Foti
Abstract
Flexible roofs are sensitive to wind actions because they are light, and their deformability can induce local or global instability. In most cases, their design requires experimental wind tunnel testing to investigate the aeroelastic phenomena and the structural response under the wind. However, the reduced scale necessary in wind tunnels makes the dynamic identification of the test model difficult. Several approaches of multi-modal dynamic identification can be used, even if a specific approach is not defined for geometric nonlinear flexible roofs. Many times, the choice of the position of the sensors is affected by the unknown roof dynamics. This paper investigates the ambient vibration time-dependent accelerations for a flexible roof scaled model through Singular Value Decomposition (SVD) and their spatial correlations with the purpose of analyzing the signal structure and its acquisition to perform the dynamic identification of the test model.
- Record ID
- CUT35a57bf57bf14d2c939d9ff76c9bf9ea
- Publication categories
- ;
- Author
- Journal series
- Applied Sciences-Basel, ISSN 2076-3417, Monthly
- Issue year
- 2023
- Vol
- 13
- No
- 7
- Pages
- [1-13]
- Article number
- 4135
- Other elements of collation
- fot.; rys.; wykr.; Bibliografia (na s.) - 11-13; Bibliografia (liczba pozycji) - 39; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, Iss. 7
- Substantive notes
- This article belongs to the Special Issue: Buildings and Structures under Extreme Loads III
- Keywords in English
- flexible roofs, random signals, singular value decomposition, eigenvectors, eigenvalues
- ASJC Classification
- ; ; ; ; ;
- DOI
- DOI:10.3390/app13074135 Opening in a new tab
- URL
- https://www.mdpi.com/2076-3417/13/7/4135 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT35a57bf57bf14d2c939d9ff76c9bf9ea/
- URN
urn:pkr-prod:CUT35a57bf57bf14d2c939d9ff76c9bf9ea
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