Post-critical behavior of an auto-parametric 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_____%2F20%3A00537600" target="_blank" >RIV/68378297:_____/20:00537600 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.ijnonlinmec.2020.103441" target="_blank" >https://doi.org/10.1016/j.ijnonlinmec.2020.103441</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijnonlinmec.2020.103441" target="_blank" >10.1016/j.ijnonlinmec.2020.103441</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Post-critical behavior of an auto-parametric aero-elastic system with two degrees of freedom

Popis výsledku v původním jazyce

A generalized two-degree-of-freedom non-linear mathematical system with non-linear gyroscopic and nonconservative terms was used to set up a model for heave and pitch self-excited motion. The stability conditions for a girder with a bluff cross-section in wind flow were identified and presented. The analysis, based on the Routh–Hurwitz conditions and a numerical evaluation of the model, comprises both the self-excited case and an assumption of a harmonic load. The boundaries between different response types that depend on the frequencies of two principal aero-elastic modes are shown. The properties of the response located at these limits and the tendencies of the response in their neighborhood are discussed. The results can be used to explain several experimentally observed effects.

Název v anglickém jazyce

Post-critical behavior of an auto-parametric aero-elastic system with two degrees of freedom

Popis výsledku anglicky

A generalized two-degree-of-freedom non-linear mathematical system with non-linear gyroscopic and nonconservative terms was used to set up a model for heave and pitch self-excited motion. The stability conditions for a girder with a bluff cross-section in wind flow were identified and presented. The analysis, based on the Routh–Hurwitz conditions and a numerical evaluation of the model, comprises both the self-excited case and an assumption of a harmonic load. The boundaries between different response types that depend on the frequencies of two principal aero-elastic modes are shown. The properties of the response located at these limits and the tendencies of the response in their neighborhood are discussed. The results can be used to explain several experimentally observed effects.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA19-21817S" target="_blank" >GA19-21817S: Neholonomní interakce a dynamická stabilita aeroelastických soustav</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

International Journal of Non-Linear Mechanics

ISSN

0020-7462

e-ISSN

—

Svazek periodika

121

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

103441

Kód UT WoS článku

000527346800013

EID výsledku v databázi Scopus

2-s2.0-85081115743