The kinematics of the motion of floating elements (ring) of rotor mechanisms under steady state rotation modes is examined experimentally. The ring is placed with a gap with respect to the drive cylindrical link and touches it without losing contact. It is shown that the ring motion is a direct asynchronous precession and its points circumscribe epitrochoids, if the driving motion is “lunar.”
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Banakh, L.Ya., Some phenomena that occur when the shaft moves in a bearing with a clearance, Mashinovedenie, 1965, no. 1, p. 70.
Blekhman, I.I., Vibratsionnaya mekhanika (Vibratory Mechanics), Moscow: Nauka, 1994.
Banakh, L., Contact problems in rotor systems, Vibroeng. Proc., 2016, vol. 8, p. 90.
Shatochin, V.F., Vibrations of Turbogenerator Rotors with Rolling of Rotor to Stator. Modeling Techniques and Software Tools, Saarbrücken: Lap Lambert Academic, 2016.
Kostyuk, A.G., Shatokhin, V.F., and Volokhovskaya, O.A., Specific features relating to the motion of a rotor with rubbing against the stator, Therm. Eng., 2013, vol. 60, no. 9, pp. 628–634.
Nikiforov, A.N., Generalized mathematical model of the Jeffcot-Laval rotor taking into account slippage during contacts and misalignment with the stator, Vestn. Nauch.-Tekh. Razvit., 2012, no. 5 (57), p. 41.
Banakh, L.Ya. and Nikiforov, A.N., The reduction of the vibration level in high-speed rotor systems by means of floating seal rings, J. Mach. Manuf. Reliab., 2013, vol. 42, no. 4, pp. 276–280.
Rozhdestvensky, Yu. and Boyarshinova, A., et al., Dynamics analysis of rotor with floating rings package bearing, in Proceedings of the 8th IFToMM International Conference on Rotor Dynamics,2010, Seoul, Korea.
Li, C.H. and Rohde, S.M., On the steady and dynamic performance characteristics of floating ring bearings, ASME Paper, 1980, no. 80-C2/Lub-17.
Akhmetkhanov, R.S., Banakh, L.Ya., and Rudis, M.A., Analysis of unsteady oscillations of rapidly rotating rotor systems taking into account gas-dynamic forces, Probl. Mashinostr. Nadezhnosti Mash., 2001, no. 6, p. 16.
Banakh, L.Ya., Barmina, O.V., and Kel’ner, M.S., Kinematics of motions in rotor system during contact between rotor and floating elements, J. Mach. Manuf. Reliab., 2017, vol. 46, no. 4, pp. 336–340.
Dimentberg, F.M., Izgibnye kolebaniya vrashchayushchikhsya valov (Bending Vibrations of Rotating Shafts), Moscow: Akad. Nauk SSSR, 1959.
This work was supported by the Russian Foundation for Basic Research, project no. 18-08-00-171a.
Authors declare that they have no conflict of interest.
Translated by Yu. Zikeeva
About this article
Cite this article
Banakh, L.Y., Tyves, L.I. Experimental Analysis of the Kinematics of Motion of Floating Elements in Rotor Mechanisms. J. Mach. Manuf. Reliab. 49, 184–188 (2020). https://doi.org/10.3103/S1052618820030048
- floating rung
- ring precession