Phase delayed excitation of turbine blades couple with friction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F12%3A00383350" target="_blank" >RIV/61388998:_____/12:00383350 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Phase delayed excitation of turbine blades couple with friction
Original language description
Model of blade couple connected by a friction contact was investigated in the first resonance frequency range. On the contrary to the previous study, where only one harmonic force excites the couple, two forces with mutual time delay were used. It is shown that this delay is proportional to the ratio of stator and rotor blade numbers. The reduction of resonance vibrations realized by means of friction between the blade-heads increases roughly proportional to the difference of stator and rotor blade numbers.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA101%2F09%2F1166" target="_blank" >GA101/09/1166: Research of dynamic behaviour and optimalization of complex rotating systems with non-linear couplings and high damping materials</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů