Numerical simulation of transient aeroelastic phenomena influenced by stochastic resonance in cross flow conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F25%3A00619497" target="_blank" >RIV/68378297:_____/25:00619497 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.21495/em2025-137" target="_blank" >https://doi.org/10.21495/em2025-137</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21495/em2025-137" target="_blank" >10.21495/em2025-137</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical simulation of transient aeroelastic phenomena influenced by stochastic resonance in cross flow conditions

Popis výsledku v původním jazyce

Stochastic resonance is a phenomenon observed in nonlinear dynamical systems with bistable behavior under combined deterministic and stochastic excitation. In its classical form, it is modeled using a Duffing-type oscillator subjected to harmonic forcing and additive white noise, resulting in noise-assisted transitions between stable states. This study investigates numerical methods for capturing transient effects related to stochastic resonance in the context of aeroelastic post-critical behavior, with a focus on a prismatic beam exposed to cross air flow. Motivated by wind tunnel observations, stochastic resonance is explored as a theoretical framework for modeling complex aeroelastic responses in bridge decks. Two computational approaches are employed: direct stochastic simulation using Monte Carlo methods, and numerical solution of the associated Fokker–Planck equation using the method of lines. The results highlight the capability of these methods to reproduce resonance-driven switching and demonstrate their potential for predicting transient aeroelastic responses relevant to the stability of slender structures under aerodynamic loading.n

Název v anglickém jazyce

Numerical simulation of transient aeroelastic phenomena influenced by stochastic resonance in cross flow conditions

Popis výsledku anglicky

Stochastic resonance is a phenomenon observed in nonlinear dynamical systems with bistable behavior under combined deterministic and stochastic excitation. In its classical form, it is modeled using a Duffing-type oscillator subjected to harmonic forcing and additive white noise, resulting in noise-assisted transitions between stable states. This study investigates numerical methods for capturing transient effects related to stochastic resonance in the context of aeroelastic post-critical behavior, with a focus on a prismatic beam exposed to cross air flow. Motivated by wind tunnel observations, stochastic resonance is explored as a theoretical framework for modeling complex aeroelastic responses in bridge decks. Two computational approaches are employed: direct stochastic simulation using Monte Carlo methods, and numerical solution of the associated Fokker–Planck equation using the method of lines. The results highlight the capability of these methods to reproduce resonance-driven switching and demonstrate their potential for predicting transient aeroelastic responses relevant to the stability of slender structures under aerodynamic loading.n

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA24-13061S" target="_blank" >GA24-13061S: Kombinované účinky aeroelastických nestabilit na stavební konstrukce</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Engineering mechanics 2025. Book of full texts

ISBN

978-80-86246-96-3

ISSN

1805-8248

e-ISSN

1805-8256

Počet stran výsledku

4

Strana od-do

137-140

Název nakladatele

Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences

Místo vydání

Prague

Místo konání akce

Medlov

Datum konání akce

12. 5. 2025

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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