Numerical investigation of the twisted blades vibration considering friction couplings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F12%3A43916250" target="_blank" >RIV/49777513:23520/12:43916250 - 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

Numerical investigation of the twisted blades vibration considering friction couplings

Popis výsledku v původním jazyce

This paper deals with the modelling of twisted blades by the finite element method in the time domain, which can be suitable for transient problems and also for the study of non-linearized system dynamics. Two numerical approaches was studied. The tripleof blades was modelled by means of the standard commercial finite element code ANSYS and the dynamic analysis was performed in the time-domain without model reduction. The second numerical approach is based on the modelling of separate blades by commercial or in-house finite element codes. The reduced model of the whole system can be created after performing the modal analysis of single blades considering particular effects of the rotation. The contact and friction forces based on a multi-point contactapproach are included at the right-hand side of the equations of motion as nonlinear force vectors.

Název v anglickém jazyce

Numerical investigation of the twisted blades vibration considering friction couplings

Popis výsledku anglicky

This paper deals with the modelling of twisted blades by the finite element method in the time domain, which can be suitable for transient problems and also for the study of non-linearized system dynamics. Two numerical approaches was studied. The tripleof blades was modelled by means of the standard commercial finite element code ANSYS and the dynamic analysis was performed in the time-domain without model reduction. The second numerical approach is based on the modelling of separate blades by commercial or in-house finite element codes. The reduced model of the whole system can be created after performing the modal analysis of single blades considering particular effects of the rotation. The contact and friction forces based on a multi-point contactapproach are included at the right-hand side of the equations of motion as nonlinear force vectors.

Druh

O - Ostatní výsledky

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F09%2F1166" target="_blank" >GA101/09/1166: Výzkum dynamických vlastností a optimalizace složitých rotujících soustav s nelineárními vazbami a materiály o vysokém útlumu</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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