Abstract
The dynamics of the vibration process of a pumping unit can be considered as independent oscillations of two separate sprung masses from the centrifugal force: the rotor on the bearings and the pump casing on the foundation supports. In the absence of special damping devices in the oscillating system, the reaction force from the rotor vibration affects the casing and the bearing supports approximately equally. However, when dampers are used in the oscillating system, they can significantly reduce transmitted force to unit supports. Such a method made it possible, in addition to the acoustic parameters of the unit, to determine the dynamic loads on the supports and to conduct a comparative assessment of the strength parameters of rolling bearings. Vibration protection of rotating machines, i. e. with a rotor, which includes an impeller with a shaft and support parts, requires a large amount of research, largely experimental in nature. At present, some of this work can be significantly reduced by using mathematical apparatus to perform calculations and model dynamic processes. The aim of the paper is to show method and model to calculate dynamics of vibration process in a pumping unit, considering elastic and dissipative properties of elements in support devices.