Design of Laboratory Dynamic Balancing Device and Investigation of Vibrations of Rotating Bodies

Abstract

The rotor part to be balanced is mounted on the balancing device using a suitably designed fixture. When the rotor is rotated around its own axis, static and dynamic unbalance in the rotor, static and dynamic bending, which are simple harmonic movements in nature, cause oscillating motion. This harmonic motion of the static and dynamic elasticities is detected by the respective sensors and converts the mechanical input of the harmonic motion proportionally to the electrical voltage output. These readings are used to calculate the current static and dynamic unbalance in the rotor using the calibration constants. In this study, we designed a new balancing machine by using Arduino and MATLAB program and gave analysis results.

Study on the Mechanism and Suppression of Harmonic Vibration of AMB-Rotor System

“…Usually, a dynamic balancing machine is applied firstly for balancing the rotor [8]. However, because dynamic balancing lacks precision, residual unbalance remains, which will generate an unbalanced vibration force [9]. Scholars use different control methods to suppress unbalanced vibration forces, such as LMS feedforward compensation [10], a notch filter [11], the Fourier coefficient method [12], an adaptive filter [13], etc.…”