Wind-tunnel experiments on vortex-induced vibration of rough bridge cables

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F17%3A00477180" target="_blank" >RIV/68378297:_____/17:00477180 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/17:00313154

Výsledek na webu

<a href="http://ascelibrary.org/doi/pdf/10.1061/(ASCE)BE.1943-5592.0001104" target="_blank" >http://ascelibrary.org/doi/pdf/10.1061/(ASCE)BE.1943-5592.0001104</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1061/(ASCE)BE.1943-5592.0001104" target="_blank" >10.1061/(ASCE)BE.1943-5592.0001104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Wind-tunnel experiments on vortex-induced vibration of rough bridge cables

Popis výsledku v původním jazyce

Surface roughness, ice accretion, and atmospheric turbulence are important issues because they can considerably alter the aerodynamic characteristics of bridge cables. The present study describes wind-tunnel experiments on vortex-induced vibrations of rough bridge cables characterized with various surface roughness and performed at various levels of atmospheric turbulence. Three different cable models were used: a smooth cylinder to represent dry cables, a helical strand cable, and a cable with modeled ice accretion. The studied parameters include the critical velocity and amplitude of vortex-induced vibration and parameter sensitivity to changes in flow turbulence and cable surface roughness. The results obtained indicate that cable roughness and turbulence of the flow have significant influences on the dynamic response of bridge cables. The experimental results indicate that the vortex-induced vibration was largest for the ice-accreted bridge cable.

Název v anglickém jazyce

Wind-tunnel experiments on vortex-induced vibration of rough bridge cables

Popis výsledku anglicky

Surface roughness, ice accretion, and atmospheric turbulence are important issues because they can considerably alter the aerodynamic characteristics of bridge cables. The present study describes wind-tunnel experiments on vortex-induced vibrations of rough bridge cables characterized with various surface roughness and performed at various levels of atmospheric turbulence. Three different cable models were used: a smooth cylinder to represent dry cables, a helical strand cable, and a cable with modeled ice accretion. The studied parameters include the critical velocity and amplitude of vortex-induced vibration and parameter sensitivity to changes in flow turbulence and cable surface roughness. The results obtained indicate that cable roughness and turbulence of the flow have significant influences on the dynamic response of bridge cables. The experimental results indicate that the vortex-induced vibration was largest for the ice-accreted bridge cable.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Bridge Engineering

ISSN

1084-0702

e-ISSN

—

Svazek periodika

22

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000417466500016

EID výsledku v databázi Scopus

2-s2.0-85026538500