Repozytorium Uniwersytetu Zielonogórskiego udostępnia 9 387 obiektów cyfrowych
Obiekt
Tytuł: The approximation function of bridge deck vibration derived from the measured eigenmodes
Creator:
Sokol, Milan ; Komorníková, Magdaléna ; Bacigál, Tomáš ; Rodríguez, Miguel X.
Date:
Resource Type:
Contributor:
Stefanowski, Jerzy - ed. ; Krawiec, Krzysztof - ed. ; Wrembel, Robert - ed.
Subtitle:
Group publication title:
Abstract:
This article deals with a method of how to acquire approximate displacement vibration functions. Input values are discrete, experimentally obtained mode shapes. A new improved approximation method based on the modal vibrations of the deck is derived using the least-squares method. An alternative approach to be employed in this paper is to approximate the displacement vibration function by a sum of sine functions whose periodicity is determined by spectral analysis adapted for non-uniformly sampled data and where the parameters of scale and phase are estimated as usual by the least-squares method. ; Moreover, this periodic component is supplemented by a cubic regression spline (fitted on its residuals) that captures individual displacements between piers. The statistical evaluation of the stiffness parameter is performed using more vertical modes obtained from experimental results. The previous method (Sokol and Flesch, 2005), which was derived for near the pier areas, has been enhanced to the whole length of the bridge. The experimental data describing the mode shapes are not appropriate for direct use. Especially the higher derivatives calculated from these data are very sensitive to data precision.
Publisher:
Zielona Góra: Uniwersytet Zielonogórski
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DOI:
Pages:
Source:
AMCS, volume 27, number 4 (2017) ; kliknij tutaj, żeby przejść
Language:
License CC BY 4.0:
Rights:
Biblioteka Uniwersytetu Zielonogórskiego
Kolekcje, do których przypisany jest obiekt:
- Repository > Faculties > Faculty of Computer, Electrical and Control Engineering
- Repository > Types of work > Articles
- Repository > Scientific journals and UZ publishing series > International Journal of Applied Mathematics and Computer Science (AMCS) > International Journal of Applied Mathematics and Computer Science (AMCS) (2017)
Data ostatniej modyfikacji:
Jul 14, 2025
Data dodania obiektu:
Jul 7, 2025
Liczba wyświetleń treści obiektu:
60
Wszystkie dostępne wersje tego obiektu:
https://zbc.uz.zgora.pl/repozytorium/publication/100718
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 27, number 1 (2017)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 27, number 2 (2017)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 27, number 3 (2017)
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International Journal of Applied Mathematics and Computer Science (AMCS), volume 27, number 4 (2017)
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| Nazwa wydania | Data |
|---|---|
| The approximation function of bridge deck vibration derived from the measured eigenmodes | Jul 14, 2025 |
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Uciński, Dariusz Korbicz, Józef (1951- ) - red. Uciński, Dariusz - red.
Respondek, Jerzy Stefan Kasiński, Andrzej - ed. Ponulak, Filip - ed.
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