Methods of vibration analysis for multistage immersion pumps for oil extraction
In the article the research method for external and internal vibration in «rotor-stator» system is proposed. The methods are founded on the «rotor» and «stator» subsystems representing as the beams of constant density with reduced stiffness and inertial characteristics. The subsystems connected with each other through the oil and petroleum layers in bearings and stator blades. The simulation of imbalances distribution along the rotor axis has been realized by Monte-Carlo method because of unsteady imbalance location on the shaft of arbitrarily chosen object. The method was presented with the example of calculating the pump section vibrations at its installation on the stand.