FINITE ELEMENT MODEL FOR ANALYSIS OF CHARACTERISTICS OF SHROUDED ROTOR BLADE VIBRATIONS
Abstract
The paper presents the approaches to FE modelling of blade airfoil, contact between the shrouds and operational damage. The regularities are established concerning the influence of the finite element type, finite element mesh and model of contact interaction on the spectrum of natural frequencies of blade assemblies. The use of the developed computational models is substantiated to determine the forced vibration characteristics of the selected objects of investigation. Based on the performed numerical experiments it was substantiated of finite element model selection for analysis of characteristics of shrouded rotor blade vibrations.
Keywords
FE modeling; modal analysis; forced vibration analysis; shrouded blade; nonlinear vibrations
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G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine Ukraine
http://orcid.org/0000-0003-0803-7054
G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine Ukraine
http://orcid.org/0000-0002-9690-9758
1G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine, 2Department of Oscillations and Vibration Reliability Ukraine
http://orcid.org/0000-0001-7550-8544
Vinnytsia National Technical University Ukraine
http://orcid.org/0000-0002-5916-2413
Al-Farabi Kazakh National University Kazakhstan
http://orcid.org/0000-0003-1603-5577
Institute of Information and Computing Technologies of the CS MES of RK Kazakhstan
http://orcid.org/0000-0002-5035-9076

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