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Dynamic properties of a turbine blade couple: Analysis of the contact force effects

Citace:
BRŮHA, J., ZEMAN, V. Dynamic properties of a turbine blade couple: Analysis of the contact force effects. In Computational mechanics - EXTENDED ABSTRACTS. Plzeň: Západočeská univerzita v Plzni, Univerzitní 8, 306 14 Plzeň, 2016. s. 5-6. ISBN: 978-80-261-0647-0
Druh: STAŤ VE SBORNÍKU
Jazyk publikace: eng
Anglický název: Dynamic properties of a turbine blade couple: Analysis of the contact force effects
Rok vydání: 2016
Místo konání: Plzeň
Název zdroje: Západočeská univerzita v Plzni, Univerzitní 8, 306 14 Plzeň
Autoři: Ing. Jan Brůha , Prof. Ing. Vladimír Zeman DrSc.
Abstrakt EN: The contribution is concerned with modelling of a harmonically excited turbine blade couple with frictional contact of shrouds and analysing the effects of compressive normal and tangential friction forces on dynamic properties of the blades. The turbine twisted blades (that are considered to be clamped into a rotating rigid disk) are modelled by means of the finite element method using Rayleigh beam elements with varying cross-sectional parameters and six degrees of freedom in each of nodes. The rhomboid-shaped shrouds are considered to be rigid. The modelling of interactions at the contact surfaces is carried out using a multipoint frictional contact model with constant normal contact stiffness.
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