Abstract
The dynamic behavior of rotor systems is influenced by thrust bearings. Therefore, a time-efficient model of oil-lubricated thrust bearings is introduced within this contribution. The areas of application for this bearing model are multibody simulations and more specifically high-speed rotordynamic systems. The Reynolds equation is solved at each pad of the bearing for the calculation of the fluid-film forces and moments, where the effect of misalignment of the shaft is also considered. For the solution of Reynolds equation the weak formulation is used, i.e. the Galerkin approach. This optimized bearing model results in heavily reduced simulation times especially if they are compared to the relatively large simulation times needed in co-simulations. The applied procedure can be easily implemented into commercial software and is flexible for investigating any bearing geometry and number of pads. Finally, the effect of the thrust bearing is studied in run-up simulations on an example rotor-bearing system.
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References
Andres LS (2001) Effects of misalignment on turbulent flow hybrid thrust bearings. J Tribol 124(1):212–219
DIN 31653 Teil 2 (1991) Gleitlager; Hydrodynamische Axial-Gleitlager im stationären Betrieb; Funktionen für die Berechnungen von Axialsegmentlagern
Heshmat H, Pinkus O (1987) Misalignment in thrust bearings including thermal and cavitation effects. J Tribol 109(1):108–114
Jiang P, Yu L (1999) Dynamics of a rotor-bearing system equipped with a hydrodynamic thrust bearing. J Sound Vib 227(4):833–872
Liu S, Mou L (2012) Hydrodynamic lubrication of thrust bearings with rectangular fixed-incline-pads. J Tribol 134(2):024503
Mittwollen N, Hegel T, Glienicke J (1991) Effect of hydrodynamic thrust bearing on lateral shaft vibrations. J Tribol 113(4):811–817
Acknowledgments
The author would like to thank the Greek State Scholarship Foundation (IKY) for the program of individual evaluation 2011–2012 and the German Academic Exchange Service (DAAD) for the partial financial support.
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Chatzisavvas, I., Boyaci, A., Schweizer, B. (2015). Efficient Thrust Bearing Model for High-Speed Rotordynamic Applications. In: Pennacchi, P. (eds) Proceedings of the 9th IFToMM International Conference on Rotor Dynamics. Mechanisms and Machine Science, vol 21. Springer, Cham. https://doi.org/10.1007/978-3-319-06590-8_79
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DOI: https://doi.org/10.1007/978-3-319-06590-8_79
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