A wind tunnel analysis of flutter vibrations of a U-beam

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F14%3A00429315" target="_blank" >RIV/68378297:_____/14:00429315 - isvavai.cz</a>
Result on the web
<a href="http://paginas.fe.up.pt/eurodyn2014/CD/papers/435_MS20_ABS_1318.pdf" target="_blank" >http://paginas.fe.up.pt/eurodyn2014/CD/papers/435_MS20_ABS_1318.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
A wind tunnel analysis of flutter vibrations of a U-beam
Original language description
Motivated by assessing the aeroelastic stability of a conveyor solution, the aeroelastic stability of a U-beam with an aspect ratio (width B over frontal height H) of B/H = 4.62 is investigated. Wind-tunnel experiments involving a special test stand forsectional models and complementary CFD simulations were carried out. We find that the U-beam can perform self-excited two-degree of freedom (flutter) vibrations. This is also reflected in the simulation results. Vortex-induced vibrations were observed experimentally, but the amplitudes were small in respect to the frontal height. Numerically, it was found that there exist two different patterns of the flow around the U-profile: One pattern that is very similar to the flow around a rectangular prism ( ?R-flow pattern) and another pattern were the flow ?reaches into the pocket of the profile (?U-flow pattern). The amplitude of vortex induced vibrations depends strongly on the flow pattern. When the R-flow pattern is realized, the amplitud
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 9th International Conference on Structural Dynamics. EURODYN 2014
ISBN
978-972-752-165-4
ISSN
2311-9020
e-ISSN
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Number of pages
8
Pages from-to
3113-3120
Publisher name
European Association for Structural Dynamics (EASD)
Place of publication
Porto
Event location
Porto
Event date
Jun 30, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000354786604020

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