Proceedings Vol. 15 (2009)
ENGINEERING MECHANICS 2009
May 11 – 14, 2009, Svratka, Czech Republic
Copyright © 2009 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 629 - 640, full text
The work introduces the methodology of modelling a steam turbine bladed disk vibration. A decomposition method of complex system into components – blades, blade packets connected by shroud and disk, in which the blades are fixed – is used. After the investigation of blade rim connected with the rigid disk and bladed disk modal properties, the forced vibration due to aerodynamic excitation is computed as well as stress analysis. The bladed disk model is completed by kinematic excitation, which is caused by rotor forced vibration.
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