The influence of parameters of interface contacts elements of the LSB48 blade’s computational model on the resonant frequencies of the bladed disc
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F15%3A43927812" target="_blank" >RIV/49777513:23640/15:43927812 - 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
The influence of parameters of interface contacts elements of the LSB48 blade’s computational model on the resonant frequencies of the bladed disc
Original language description
To perform the nonlinear vibration analysis of a bladed disc with contacts between blades, the properties of the interface contact elements of the computational model used must be set correctly. In this study, the numerical method is proposed for calculation of the resonant frequencies of the computational model of the bladed disc in case that the so-called “contact stiffnesses” are given. The method is demonstrated for the case of the bladed disc provided with LSB48 blades that comprise two integral contact elements, one in the middle and the second one on the tip of the blade. The values of contact stiffnesses are fitted to get the calculated values of resonant frequencies in accord with the measured ones. The method utilizes the cyclic symmetry properties of the bladed disc.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/TE01020068" target="_blank" >TE01020068: Centre of research and experimental development of reliable energy production</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů