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Rigid Jeffcott Rotor Bifurcation Behaviour Using Different Models of Hydrodynamic Bearings

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Dynamical Systems in Theoretical Perspective (DSTA 2017)

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Abstract

The paper studies dynamical behaviour of Jeffcott rotor supported by a hydrodynamic bearings. It uses different analytical formulations for hydrodynamic bearing forces acting on Jeffcott rotor. The model is nonlinear due to the presence of hydrodynamic bearings and can show different subharmonic behaviour like oil whip and oil whirl. Such a system is subjected to dynamical analysis using numerical continuation aimed at detection of nonlinear phenomena like bifurcations and unstable behaviours with respect to basic system parameters.

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Acknowledgements

The work has been supported by the project No. 17-15915S of the Czech Science Foundation entitled Nonlinear dynamics of rotating systems considering fluid film instabilities with the emphasis on local effects.

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Authors and Affiliations

  1. University of West Bohemia, Univerzitni 8, Plzen, Czech Republic

    Miroslav Byrtus & Štěpán Dyk

Authors
  1. Miroslav Byrtus
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  2. Štěpán Dyk
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Correspondence to Miroslav Byrtus .

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Editors and Affiliations

  1. Department of Automation, Biomechanics and Mechatronics, Łódź University of Technology, Łódź, Poland

    Jan Awrejcewicz

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Byrtus, M., Dyk, Š. (2018). Rigid Jeffcott Rotor Bifurcation Behaviour Using Different Models of Hydrodynamic Bearings. In: Awrejcewicz, J. (eds) Dynamical Systems in Theoretical Perspective. DSTA 2017. Springer Proceedings in Mathematics & Statistics, vol 248. Springer, Cham. https://doi.org/10.1007/978-3-319-96598-7_7

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