000022602 001__ 22602
000022602 005__ 20170724144656.0
000022602 04107 $$aeng
000022602 046__ $$k2017-07-04
000022602 100__ $$aMontoya, Miguel Cid
000022602 24500 $$aApplication of surrogate models in the characterization of the aerodynamic response of streamlined bridge decks

000022602 24630 $$n7.$$p7th European and African Conference on Wind Engineering 
000022602 260__ $$bl'Association pour l'Ingénierie du Vent
000022602 506__ $$arestricted
000022602 520__ $$2eng$$aThe design of long span bridges is highly conditioned by the aeroelastic phenomena, which are mainly governed by the structural properties of the bridge and the deck cross-section aerodynamics. Both factors are typically interdependent, and their accurate characterization is desirable to improve the design process in this kind of structures. This paper develops an approach based on the combination of CFD techniques, surrogate models and the quasi-steady theory for obtaining the flutter derivatives of streamlined decks considering variable geometry. The baseline deck crosssection is the generic Scanlan’s G1 cross-section, and modifications of the width and depth up to a maximum value of  10% are considered. The CFD analyses are carried out by a 2-D Unsteady Reynolds-Averaged Navier-Stokes approach combined with Menter’s k ω SST turbulence model, and the surrogate model employed is the Kriging technique. The results are validated with the force coefficients and flutter derivatives obtained from wind tunnel test of sectional models, presenting good agreement in the results.

000022602 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022602 653__ $$aaeroelasticity, CFD, wind tunnel, bridges, box cross-section, surrogate models

000022602 7112_ $$a7th European and African Conference on Wind Engineering$$cLiège, BE$$d2017-07-04 / 2017-07-07$$gEACWE2017
000022602 720__ $$aMontoya, Miguel Cid$$iJurado, José Ángel$$iHernandez, Santiago$$ilvarez, Antonio J. Á$$iKusano, Ibuki$$iNieto, Felix
000022602 8560_ $$ffischerc@itam.cas.cz
000022602 8564_ $$s1642056$$uhttps://invenio.itam.cas.cz/record/22602/files/154.pdf$$yOriginal version of the author's contribution in proceedings, id 154, section .
000022602 962__ $$r22493
000022602 980__ $$aPAPER