Email this article Investigation of the torsional vibrations of a rotor turbine engine with a differential reduction gearbox
- Authors: Kurushin M.1, Balyakin V.1, Ossiala V.1
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Affiliations:
- Samara University
- Issue: Vol 4, No 2 (2018)
- Pages: 27-42
- Section: Articles
- URL: https://dynvibro.ru/dynvibro/article/view/6511
- DOI: https://doi.org/10.18287/2409-4579-2018-4-2-27-42
- ID: 6511
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Abstract
In this paper, the dynamics of turbine engine with a differential reduction gearbox is considered. Only natural torsional oscillations are investigated. In the framework of solving the problem of dynamics of elastic systems, according to experimental data and in our studies by the finite element method for one pair of conjugate teeth, it can be assumed that the dependence is close to a quadratic parabola or to a sinusoid. The hydrodynamic damping of vibrations of the elastic system rotor and how lubricant layer in the gears engagements in the splined joints, are considered. The Eigenfrequencies (Hz) of all rotors together with the blades and without the blades at a constant overlap coefficient in the gear teeth are also investigated. Revealed that, overstrain of the teeth in engagement of the gear wheels leads to parametric oscillations of the engine blades.
About the authors
Mikhail Kurushin
Samara University
Email: 029-029@mail.ru
Russian Federation
Valeriy Balyakin
Samara University
Author for correspondence.
Email: 029-029@mail.ru
Head of Department of Machine Design Principles
Russian FederationVenceslas Ossiala
Samara University
Email: ossialav@gmail.com
Assisnat of the Department of Machine Design Principles
Russian FederationReferences
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