Název:
Solution methods for an aeroelastic problem with combined harmonic and stochastic excitation
Autoři:
Fischer, Cyril ; Náprstek, Jiří Typ dokumentu: Příspěvky z konference Konference/Akce: Engineering mechanics 2024 /30./, Milovy (CZ), 20240514
Rok:
2024
Jazyk:
eng
Abstrakt: Assessing responses in slender engineering structures facing both deterministic harmonic and stochastic excitation is often based on an approximation by the single-degree-of-freedom van der Pol-type nonlinear model. Determining the response probability density function involves solving the Fokker-Planck equation, which is generally a challenging task. Hence, semi-analytical and numerical methods come into play. This contribution reviews several possible techniques and spotlights the exponential-polynomial-closure method. The shown results are limited, as the paper reflects an early stage of the relevant research direction.
Klíčová slova:
exponential-polynomial-closure method; Fokker-Planck equation; Galerkin approximation; numerical solution; partial amplitudes; stochastic averaging; van der Pol-type oscillator Číslo projektu: GA24-13061S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Engineering mechanics 2024. Book of full texts, ISBN 978-80-214-6235-9, ISSN 1805-8248
Instituce: Ústav teoretické a aplikované mechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v repozitáři Akademie věd. Původní záznam: https://hdl.handle.net/11104/0353603