Response types and general stability conditions of linear aero-elastic system with two degrees-of-freedom

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F12%3A00382832" target="_blank" >RIV/68378297:_____/12:00382832 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jweia.2012.08.002" target="_blank" >http://dx.doi.org/10.1016/j.jweia.2012.08.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jweia.2012.08.002" target="_blank" >10.1016/j.jweia.2012.08.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Response types and general stability conditions of linear aero-elastic system with two degrees-of-freedom

Popis výsledku v původním jazyce

The unified linear variant of the general mathematical description of stability conditions for a girder with a bluff cross-section under the influence of wind flow is presented. A double degree-of-freedom model for the heave and pitch self-excited motionis used. The properties of the response located at the stability limits and the tendencies of the response in their vicinity are analyzed by means of the Routh?Hurwitz theorem. The respective stability conditions are depicted in the frequency plane delimited by the frequencies of two principal aero-elastic modes. Conditions for flutter onset and divergence are identified as special cases of the general theory. The results can be used as an explanation of several experimentally observed effects. The application of this method to real bridges is presented and compared with existing results from other approaches.

Název v anglickém jazyce

Response types and general stability conditions of linear aero-elastic system with two degrees-of-freedom

Popis výsledku anglicky

The unified linear variant of the general mathematical description of stability conditions for a girder with a bluff cross-section under the influence of wind flow is presented. A double degree-of-freedom model for the heave and pitch self-excited motionis used. The properties of the response located at the stability limits and the tendencies of the response in their vicinity are analyzed by means of the Routh?Hurwitz theorem. The respective stability conditions are depicted in the frequency plane delimited by the frequencies of two principal aero-elastic modes. Conditions for flutter onset and divergence are identified as special cases of the general theory. The results can be used as an explanation of several experimentally observed effects. The application of this method to real bridges is presented and compared with existing results from other approaches.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of Wind Engineering and Industrial Aerodynamics

ISSN

0167-6105

e-ISSN

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Svazek periodika

111

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

000312354600001

EID výsledku v databázi Scopus

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