The influence of parameters of interface contacts elements of the LSB48 blade’s computational model on the resonant frequencies of the bladed disc

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The influence of parameters of interface contacts elements of the LSB48 blade’s computational model on the resonant frequencies of the bladed disc

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

The influence of parameters of interface contacts elements of the LSB48 blade’s computational model on the resonant frequencies of the bladed disc

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/TE01020068" target="_blank" >TE01020068: Centrum výzkumu a experimentálního vývoje spolehlivé energetiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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