The Influence of a Torus Shaped Auto-Equalizer on the Vibrations of Rotary Systems
Rotary systems are frequently used in different kinds of machines and devices, and therefore the problem of vibrations observed in rotary systems play a crucial role. The article analyses a ball-shaped auto-equalizer with a vertical axis the body of which is placed relatively eccentric to the rotation axis. The auto-equalizer with a torus-shaped body contains one ball-shaped adjustment mass moving freely within the body of the auto-equalizer both in circularly and crosswise directions. This reduces resistance force in the ball motion mode to the minimum, and, at the same time, decreases the possibility of starting the auto-equalizer.Making the analysis of experimental research on the ball-shaped auto-equalizer has led to the conclusion that, along with the working mode when the ball stops relatively at the rotating body from the opposite to imbalance side, there is another mode when the ball is moving relatively continuously to the body of the auto-equalizer. It has been stated that the ball in the working mode is affected by forces trying to move it to the body of the auto-equalizer opposite to the imbalance. The closer is the ball to the optimum place the smaller is tangential force influencing the ball. A mathematical model for the auto-equalizer consisting of two differential equations has been developed.
Algirdas V. Valiulis, Olegas Černašėjus and Vadim Mokšin
G. Strautmanis et al., "The Influence of a Torus Shaped Auto-Equalizer on the Vibrations of Rotary Systems", Solid State Phenomena, Vols. 220-221, pp. 97-103, 2015