Dynamic Balance Analysis of Drum-Shape Rotor
For rigid rotor that widely applied in gyroscopes, high precision dynamic balance is very important. The paper introduces a dynamic balance method for drum-shape gyroscope rotor: the rotor is supported by gas bearing; detecting the displacement of three points on the drum-shape rotor’s end-plane, obtaining its normal direction. Then according to geometrical relation of geometric axis and polar inertia axis, the dynamic trace of the rotor can be obtained, and the rotor’s mass imbalance is calculated. Experiment result shows that the method has high balance accuracy, particularly suit for high-speed gyroscope rotor whose mass imbalance is small.
Kai Cheng, Yingxue Yao and Liang Zhou
H.B. Zhang et al., "Dynamic Balance Analysis of Drum-Shape Rotor", Applied Mechanics and Materials, Vols. 10-12, pp. 909-912, 2008