Publikacje

Abstract:

In this paper a model of the pump impeller with annular seals and balancing device, used as a combined support-seal assembly, is considered. The forced coupled radial, angular and axial vibrations of the rotor are determined with consideration of linearized inertial, damping, gyroscopic, positional and circulating forces and moments acting on the impeller from the side of the fluid flow in annular seals. The theoretical analysis is supplemented by the numerical example, the amplitude frequency characteristics are shown.

B I B L I O G R A F I A1. Chiba Y., Ishikawa Ch., Katsura H., Abe D., 2007, Single-shaft multistage pump, Patent US7198457B2.
2. Childs D.W., 1993, Turbomachinery Rotordynamics Phenomena, Modeling, and Analysis, John Wiley and Sons, Inc.
3. Faria M.T.C., Miranda W.M., 2012, Pressure dam influence on the performance of gas face seals, Tribology International, No.47, pp.134–141.
4. Gosiewski Z., 2008, Analysis of coupling mechanism in lateral/torsional rotor vibrations, Journal of Theoretical and Applied Mechanics, vol.46, No.4, pp.829-844.
5. Jędral W., 2001, Centrifugal Pumps (in Polish), Warsaw, PWN.
6. Kekez M., Radziszewski L., 2011, Modelling of pressure in the injection pipe of a diesel engine by computational intelligence, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Vol.225, pp.1660-1670.
7. Korczak A., 2005, Investigations of systems counterbalancing the axial thrust in multi-stage centrifugal pumps (in Polish), Scientific Book of the Silesian University of Technology, No.1679, Gliwice.
8. Kubota Y., 1999, Thrust-balancing device, Patent EP0952352A2.
9. Kundera C., Martsinkovsky V.A., 2014, Static and dynamic analysis of a pump impeller with a balancing device. Part I: Static analysis, Int. J. of Applied Mechanics and Engineering, vol.19, No.3, pp.609-619.
10. Li W., Yang Y., Sheng D. and Chen J., 2011, A novel nonlinear model of rotor/bearing/seal system and numerical analysis, Mechanism and Machine Theory, No.46, pp.618–631.
11. Martsinkovsky V.A., 2012, Rotordynamics of centrifugal machines (in Russian), Editorial of the Sumy State University, Sumy.
12. Martsinkovsky V.A., Demin S.I., Gulyj A.N., Bachkina A.A., 1995, Centrifugal pump, Patent SU1771248.
13. Marcinkowski W.A., Kundera C., 2008, Design theory of noncontacting seals (in Polish), Editorial of the Kielce University of Technology, Kielce.
14. Martsinkovsky V.A., A. Zhulyov A. and Kundera C., 2014, Static and dynamic analysis of a pump impeller with a balancing device. Part II: Dynamic analysis, Int. J. of Applied Mechanics and Engineering, Vol.19, No.3, pp.621-631

POWRÓT

Strona główna > Publikacje

Analysis of forced spatial vibrations of the centrifugal pump impeller with axial forces balancing device