Study on the Applicability of Influence Coefficient Method Combined with Vector Analysis in Dynamic Balancing Rigid Rotor Using Flexible Supports

Abstract

Dynamic balance using flexible supports is one of the commonly applied solutions to determine the position and unbalanced mass in rotors. However, dynamic balance using flexible supports are being determined experimentally, resulting in low accuracy and long calibration time. This paper presents some research results when applying the influence coefficient method to combine vector analysis (using balanced method on individual planes and trial mass). To verify experimentally the theory, HMC1501 sensors are attached at the supports to measure vibration induced displacement, an encoder 2.048 PPR is used to determine the position (phase angle $\varphi$ and a DSPIC30F4011 microcontroller is equipped to receive signal were used. The measured results were obtained by the Fast Fourier Transform (FFT) combined with numerical analysis, including phase angle j and unbalance mass U.