Development of Project Recommendations to Prevent Autooscillations and Vibration Overload of the Rotary Machine Working Member

There were developed ways to minimize the rotor vibration activity in the plain bearing by readjusting design parameters, which eliminate the reasons of generating powerful low-frequency oscillations, imbalance position of rotor inertia axis, reduction of rotor oscillation amplitude, prevention of the loss of stability of the steady motion of rotors while maintaining bearing operating parameters. It has been proved that reduction of dynamic eccentricity is possible by increasing the oil angle, increasing the lifting force and reducing the rotor precession angle to 15-30 degrees. It has been defined that the most efficient way to prevent autooscillations is to increase the parameters of the curved oil wedge through selecting value ranges of relative clearance which is used while bearing designing or maintenance due to limitation of the range recommended by the stability nomogram.