Regularities of the influence of the aerodynamic coupling of blades on the formation of the spectrum of natural vibrations of the rims of turbine wheels of gas-turbine engines

We present the results of analytic and numerical investigations aimed at the evaluation of the influence of the aerodynamic coupling of blades on the formation of the spectrum of natural vibrations of the rims of turbine wheels regarded as a complex mechanical system with structural rotational symme...

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Bibliographic Details
Published in:Strength of materials 2010-10, Vol.42 (5), p.593-605
Main Authors: Zinkovskii, A. P., Poberezhnikov, A. V., Tsimbalyuk, V. A.
Format: Article
Language:English
Subjects:
Aerodynamics
Aerospace engines
Applied sciences
Blades
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Continuous cycle engines: steam and gas turbines, jet engines
Engines and turbines
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gas turbine engines
Gas-turbines
Joining
Materials Science
Mechanical engineering. Machine design
Physics
Rims
Solid Mechanics
Structural and continuum mechanics
Turbine wheels
Vibration
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
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Description
Summary:We present the results of analytic and numerical investigations aimed at the evaluation of the influence of the aerodynamic coupling of blades on the formation of the spectrum of natural vibrations of the rims of turbine wheels regarded as a complex mechanical system with structural rotational symmetry with regard for the frequency detuning of blades.
ISSN:0039-2316
1573-9325
DOI:10.1007/s11223-010-9247-8