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Dynamic Balance Analysis of Drum-Shape Rotor

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Abstract:

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.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 10-12)

Pages:

909-912

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.10-12.909

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Cite this paper

Online since:

December 2007

Authors:

H.B. Zhang, L. Zhou, Ying Xue Yao

Keywords:

Dynamic Balance, Gas Bearing, Gyroscope Rotor, Polhode

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Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Y.L. Tian, L.Z. Gu , Y.Q. Zhao, C.F. Yuan: Aviation Metrology & Measurement Technology, Vol. 23 (2003), pp.21-23.

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[2] X.X. He, Z.Y. Gao and Y.L. Wang: Yiqi Yibiao Xuebao, Vol. 25 (2004), pp.681-683. Fig. 7 Geometric axis trace after balance Fig. 6 Geometric axis trace before balance.

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