On the aeroelastic transient behaviour of a streamlined bridge deck section in a wind tunnel

S. Manzoor 1 P. Hémon 1, * X. Amandolese 2
* Corresponding author
1 LadHyX - Laboratoire d'hydrodynamique
2 Chaire d'Aérodynamique
CNAM - Conservatoire National des Arts et Métiers [CNAM]
Abstract : The study deals with the transient behaviour of a two degrees of freedom bridge deck section in a wind tunnel under the effect of an initial excitation. Response of the bridge deck section subjected to an initial mechanical excitation and excitation by an upstream gust is investigated separately. Experiments are conducted with three different frequency ratios between the plunge and pitch degrees of freedom. This experimental study shows that transient growth of energy occurs for wind velocities below the onset of flutter, reaching a level higher than 5 times the level of the initial excitation. In high wind conditions, this means that statistical or spectral computation techniques might underestimate the motion amplitude reached by a flexible bridge deck. This emphasises the importance of using temporal techniques under such circumstances. © 2011 Elsevier Ltd.
Document type :
Journal articles
Complete list of metadatas
https://hal-polytechnique.archives-ouvertes.fr/hal-00997989
Contributor : Denis Roura <>
Submitted on : Tuesday, June 3, 2014 - 8:28:10 PM
Last modification on : Wednesday, March 27, 2019 - 4:39:25 PM

Identifiers

Collections

CNRS | X-LADHYX | X | PARISTECH | CNAM | X-DEP-MECA | UNIV-HESAM

Citation

S. Manzoor, P. Hémon, X. Amandolese. On the aeroelastic transient behaviour of a streamlined bridge deck section in a wind tunnel. Journal of Fluids and Structures, Elsevier, 2011, 27 (8), pp.1216-1227. ⟨10.1016/j.jfluidstructs.2011.07.003⟩. ⟨hal-00997989⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

198

Contact

Informations

CCSD