Analysis of Twin Turboprop Aircraft Whirl-Flutter Stability Boundaries

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F13%3A%230001549" target="_blank" >RIV/00010669:_____/13:#0001549 - isvavai.cz</a>
Result on the web
<a href="http://arc.aiaa.org/toc/ja/49/6" target="_blank" >http://arc.aiaa.org/toc/ja/49/6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2514/1.C031390" target="_blank" >10.2514/1.C031390</a>

Result language
angličtina
Original language name
Analysis of Twin Turboprop Aircraft Whirl-Flutter Stability Boundaries
Original language description
This paper deals with aircraft structure whirl flutter analysis. It gives a summary of the requirements of airworthiness regulations, the theoretical background and aircraft certification-related issues. The focus is on the whirl flutter analyses of thenew Czech twin turboprop utility aircraft. Ordinary and optimization based analytical approaches are described. An optimization based analytical procedure to determine the whirl flutter stability boundaries for certification speed is employed. Analyses include nominal state calculation and evaluation of the influence of secondary parameters to whirl flutter stability. Finally, the propeller ? nacelle ? wing interference effects (downwash) are evaluated and future work is outlined.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JU - Aeronautics, aerodynamics, aeroplanes
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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