Structural-Acoustic Analysis of Air Duct Using FEM

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00315147" target="_blank" >RIV/68407700:21220/17:00315147 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Structural-Acoustic Analysis of Air Duct Using FEM

Popis výsledku v původním jazyce

Tone noise radiated through the inlet of a turbofan is generated mainly by rotor and stator interactions at subsonic regimes and by the shock waves generation at transonic fan tip speeds. The generated noise may reach very high sound pressure level and ultimately it can lead to a fatigue failure of air inlet duct. In this study structural-acoustic analysis of the aircraft duct is presented. The acoustic pressure field of the ducted air is determined by finite element method using the boundary condition of acoustic pressure in the rotor cross-section, which is determined on the basis of the analytical equations. A structural-acoustic analysis of the composite air duct is solved as fully coupled and also as sequentially coupled. On the basis of the structural-acoustic finite element analysis, stress and strains histories of the duct walls are determined.

Název v anglickém jazyce

Structural-Acoustic Analysis of Air Duct Using FEM

Popis výsledku anglicky

Tone noise radiated through the inlet of a turbofan is generated mainly by rotor and stator interactions at subsonic regimes and by the shock waves generation at transonic fan tip speeds. The generated noise may reach very high sound pressure level and ultimately it can lead to a fatigue failure of air inlet duct. In this study structural-acoustic analysis of the aircraft duct is presented. The acoustic pressure field of the ducted air is determined by finite element method using the boundary condition of acoustic pressure in the rotor cross-section, which is determined on the basis of the analytical equations. A structural-acoustic analysis of the composite air duct is solved as fully coupled and also as sequentially coupled. On the basis of the structural-acoustic finite element analysis, stress and strains histories of the duct walls are determined.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/TE02000032" target="_blank" >TE02000032: Výzkumné centrum pokročilých leteckých konstrukcí</a><br>

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 statě ve sborníku

33rd conference with international participation Computational Mechanics 2017 - Extended Abstracts

ISBN

978-80-261-0748-4

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

3-4

Název nakladatele

University of West Bohemia

Místo vydání

Pilsen

Místo konání akce

Špičák, Železná Ruda

Datum konání akce

6. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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