Simulation of the Automatic Balancing Process of A Rotor, Rigidly Fixed in the Housing on Elastic Supports

Abstract

The process of automatic balancing of an unbalanced rotor was simulated using four pendulums mounted in pairs on the shaft on both sides of the rotor. The rotor is rigidly fixed in the housing, which is mounted on elastic supports. Studies have shown that the pendulums partially or fully compensate the unbalance of the rotor within the range of its rotational frequencies. By selecting the stiffness characteristics of the housing supports and mass-and-inertia parameters of the housing, the rotor becomes a zone of stable operation of the auto-balancing device. It has been established that the degree of compensation for the rotor unbalance by pendulums of equal mass and length essentially depends on the relative position of the center of rotor masses, the center of the housing masses and the center of rigidity of the elastic supports of the housing and the distance between the pendulums in one pair.