Susceptibility of U-profiles with different geometry and porosity to galloping

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F20%3A00534317" target="_blank" >RIV/68378297:_____/20:00534317 - isvavai.cz</a>
Result on the web
<a href="https://generalconferencefiles.s3-eu-west-1.amazonaws.com/eurodyn_2020_ebook_procedings_vol1.pdf" target="_blank" >https://generalconferencefiles.s3-eu-west-1.amazonaws.com/eurodyn_2020_ebook_procedings_vol1.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Susceptibility of U-profiles with different geometry and porosity to galloping
Original language description
The proposed paper deals with the experimental investigation of the susceptibility of the set of slender beams having different U-shaped cross-sections typical, e.g., for footbridges and bridge decks with railings or with wind barriers, to the classical galloping. In particular, the influence of the depth of U-shaped profiles having constant side ratio equal to 2 onto aerodynamic drag and lift coefficients was tested in the wind tunnel. Moreover, the effect of the porosity of the vertical sides of U-shaped cross-sections on these coefficients and galloping stability was also studied. The analysis of the proneness of investigated non-porous U-beams to galloping based on the classical quasi-steady theory indicates that the influence of the depth is minimal. On the other hand, when the vertical sides of U-profiles are porous, the depth represents an important factor influencing the size and angular range of positive slope of the transversal force coefficient. The comparison with the outcomes from the tests of the prisms with rectangular cross-sections is also presented and the differences are discussed in detail.
Czech name
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Czech description
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Project
<a href="/en/project/GA19-21817S" target="_blank" >GA19-21817S: Nonholonomic interaction and dynamical stability of aeroelastic systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
EURODYN 2020. Proceedings of the XI International conference on structural dynamics
ISBN
978-618-85072-0-3
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
621-630
Publisher name
National Technical University of Athens (NTUA)
Place of publication
Athens
Event location
Athény
Event date
Nov 23, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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