Investigation of unconventional bearing systems for microturbines

  • Grzegorz ŻywicaEmail author
  • Paweł Bagiński
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 73)


The article discusses unconventional bearing systems for high-speed rotors, which are used in micro-power turbomachines. Various bearing systems are presented in the subsequent sections of the article, with an indication of their main properties, advantages and disadvantages as well as restrictions associated with their use. Particular attention has been paid to gas foil bearings and bearings lubricated with the vapours of a low-boiling medium. In addition, the results of our own research related to the two above-mentioned bearing types are presented. The research was carried out under the framework of works aimed at selecting bearing systems for vapour microturbines suitable for the operation in ORC systems. The information given herein may be helpful for re-searchers or engineers who need to select a bearing system for a novel high-speed fluid-flow machine that has to withstand harsh operating conditions.


Unconventional Bearings Gas Bearings Foil Bearings Micro-turbines 


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The work presented in this article was supported by the scientific project No. 2016/21/D/ST8/01711, financed by the National Science Centre (NCN) in Poland.


  1. 1.
    Bronicki, L.Y. (Editor): Power Stations Using Locally Available Energy Sources. Encyclopedia of Sustainability Science and Technology Series. Springer, New York (2018).Google Scholar
  2. 2.
    Kiciński, J., Żywica, G.: Steam Microturbines in Distributed Cogeneration. Springer, Cham (2014).CrossRefGoogle Scholar
  3. 3.
    Żywica, G., Breńkacz, Ł., Bogulicz, M.: Optimization of the bearing system for a micro-power turbogenerator with a rotational speed up to 120,000 rpm. 13th International Conference on Dynamics of Rotating Machines - SIRM 2019, Copenhagen (2019)Google Scholar
  4. 4.
    Shen, C., Wang, D., Liu, Y., et al.: Recognition of rolling bearing fault patterns and sizes based on two-layer support vector regression machines. Smart Structures and Systems 13(3), 453–471 (2014).CrossRefGoogle Scholar
  5. 5.
    Kozanecki, Z.: Systemy wirujące maszyn przepływowych małej i średniej mocy, Bibliote-ka Problemów Eksploatacji, Łódz (2008). (in Polish)Google Scholar
  6. 6.
    Wu, R.Q., Zhang, W.,Yao, M.H.: Nonlinear dynamics near resonances of a rotor-active magnetic bearings system with 16-pole legs and time varying stiffness. Mechanical Systems and Signal Processing 100, 113–134 (2018).CrossRefGoogle Scholar
  7. 7.
    Ji, J.C., Hansen, C.H., Zander, A.C.: Nonlinear dynamics of magnetic bearing systems. Journal of Intelligent Material Systems and Structures 19(12), 1471–1491 (2008).CrossRefGoogle Scholar
  8. 8.
    Tkacz, E., Kozanecka, D., Kozanecki, Z., Miazga, K.: Investigations of oil-free support systems to improve the reliability of ORC hermetic high-speed turbomachinery. Mechanics and Mechanical Engineering 15(3), 355-365 (2011).Google Scholar
  9. 9.
    Kiciński, J.: Rotor Dynamics. IFFM Publisher, Gdansk (2006).Google Scholar
  10. 10.
    Kaczmarczyk, T.Z., Żywica, G., Ihnatowicz, E.: Vibroacoustic diagnostics of a radial microturbine and a scroll expander operating in the organic Rankine cycle installation. Journal of Vibroengineering 16(6), 4130-4147 (2016).Google Scholar
  11. 11.
    Larsen, J.S., Hansen, A.J. and Santos, I.F.: Experimental and theoretical analysis of a rigid rotor supported by air foil bearings. Mechanics and Industry 16(1), Paper No. 106 (2015).CrossRefGoogle Scholar
  12. 12.
    Żywica, G., Bagiński, P., Banaszek, S.: Experimental studies on foil bearing with a sliding coating made of synthetic material, Journal of Tribology 138(1), 011301 (2016).CrossRefGoogle Scholar
  13. 13.
    Kozanecki, Z., Łagodziński, J., Tkacz, E., Miazga, K.: Performance of Thrust Airfoil Bearing for Oil-Free Turbomachinery. Journal of Vibration Engineering & Technologies 6 (1), 1–6 (2018).Google Scholar
  14. 14.
    DellaCorte, C., A new foil air bearing test rig for use to 700 °C and 70,000 rpm. Tribology Conference, London (1997).Google Scholar
  15. 15.
    Żywica, G., Bagiński, P., Andrearczyk, A.: Experimental research on gas foil bearings with polymer coating at an elevated temperature. Tribologia 3, 217–227 (2016).CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Fluid Flow Machinery, Polish Academy of SciencesGdanskPoland

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