Innovation of the experimental facility for the study of flutter in the Institute of Thermomechanics AS CR and some results obtained from initial experiments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F16%3A00455245" target="_blank" >RIV/61388998:_____/16:00455245 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.821.144" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMM.821.144</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.821.144" target="_blank" >10.4028/www.scientific.net/AMM.821.144</a>

Result language

angličtina

Original language name

Innovation of the experimental facility for the study of flutter in the Institute of Thermomechanics AS CR and some results obtained from initial experiments

Original language description

The wind tunnel of a suction type was used for experiments with the fluttering profile NACA0015. Profile has two degrees of freedom, one in rotation (pitch) and the second one in translation mode (shift). Torque elasticity was realized by the coil spring and changed by the spring length and diameter of the spring wire. The pitch angle of the profile was measured by the magnetic rotary encoder. The translation was indicated by the magnetic linear encoder and was centered by plane springs situated on both ends of the shiftable frame. With this model the testing measurement of the self-excited vibration of flutter type in the range of Mach numbers M = 0.20-0.215 and Reynolds numbers Re = (2.63-2.83)105 was realized. Results obtained for M = 0.21 and Re = 2.76105 are presented. The measurement was adapted for the flow field evaluation by optical methods [1]. Turbulence level was approximately 0.6 %.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BI - Acoustics and oscillation

OECD FORD branch

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Project

<a href="/en/project/GA13-10527S" target="_blank" >GA13-10527S: Subsonic flutter analysis of elastically supported airfoils using interferometry and CFD</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Applied Mechanics and Materials

ISSN

1660-9336

e-ISSN

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Volume of the periodical

821

Issue of the periodical within the volume

2016

Country of publishing house

CH - SWITZERLAND

Number of pages

8

Pages from-to

144-151

UT code for WoS article

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EID of the result in the Scopus database

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