Vibrating Profile in the Aerodynamic Tunnel ? Identification of the Start of Flutter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00436414" target="_blank" >RIV/61388998:_____/14:00436414 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5890/JAND.2014.12.003" target="_blank" >http://dx.doi.org/10.5890/JAND.2014.12.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5890/JAND.2014.12.003" target="_blank" >10.5890/JAND.2014.12.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Vibrating Profile in the Aerodynamic Tunnel ? Identification of the Start of Flutter

Popis výsledku v původním jazyce

The experimental results for the vibrating NACA0015 profile elastically supported in a translation and rotation for a set of increasing Mach numbers of the airflow are presented. The profile was placed in the aerodynamic tunnel of the Institute of Thermomechanics ASCR. The support properties of the profile were modified by three additional masses to control the eigenfrequencies corresponding to transversal vibrations and verified by the identification of the complex eigenvalues (eigenfrequencies, damping) for zero flow velocity in laboratory. The transversal free vibrations as the time functions are graphically depicted for stable vibrations and in the cases of the starting flutter. The start of the flutter was determined from free vibrations of kinematically excited profile. The complex eigenvalues were identified as the functions ofMach number including corresponding limits of the system aeroelastic stability.

Název v anglickém jazyce

Vibrating Profile in the Aerodynamic Tunnel ? Identification of the Start of Flutter

Popis výsledku anglicky

The experimental results for the vibrating NACA0015 profile elastically supported in a translation and rotation for a set of increasing Mach numbers of the airflow are presented. The profile was placed in the aerodynamic tunnel of the Institute of Thermomechanics ASCR. The support properties of the profile were modified by three additional masses to control the eigenfrequencies corresponding to transversal vibrations and verified by the identification of the complex eigenvalues (eigenfrequencies, damping) for zero flow velocity in laboratory. The transversal free vibrations as the time functions are graphically depicted for stable vibrations and in the cases of the starting flutter. The start of the flutter was determined from free vibrations of kinematically excited profile. The complex eigenvalues were identified as the functions ofMach number including corresponding limits of the system aeroelastic stability.

Druh

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

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-10527S" target="_blank" >GA13-10527S: Analýza subsonického flutteru elasticky uložených profilů s využitím interferometrie a CFD</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Nonlinear Dynamics

ISSN

2164-6457

e-ISSN

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Svazek periodika

3

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

317-323

Kód UT WoS článku

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EID výsledku v databázi Scopus

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