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1 International Journal of Applied Mechanics and Engineering

1 2016

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

Zhulyov A., Martsinkovsky V., Kundera C.

International Journal of Applied Mechanics and Engineering

2016

Vol. 21, no. 3

737--750

In this paper, a model of a pump impeller with annular seals and a 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 with a numerical example, the amplitude frequency characteristics are shown.