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Sensors 2012, 12(7), 9129-9145; doi:10.3390/s120709129
Article

Performance Testing of a Magnetically Suspended Double Gimbal Control Moment Gyro Based on the Single Axis Air Bearing Table

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Received: 17 April 2012 / Revised: 18 June 2012 / Accepted: 21 June 2012 / Published: 3 July 2012
(This article belongs to the Section Physical Sensors)
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Abstract

Integrating the advantage of magnetic bearings with a double gimble control moment gyroscope (DGCMG), a magnetically suspended DGCMG (MSDGCMG) is an ideal actuator in high-precision, long life, and rapid maneuver attitude control systems. The work presented here mainly focuses on performance testing of a MSDGCMG independently developed by Beihang University, based on the single axis air bearing table. In this paper, taking into sufficient consideration to the moving-gimbal effects and the response bandwidth limit of the gimbal, a special MSDGCMG steering law is proposed subject to the limits of gimbal angle rate and angle acceleration. Finally, multiple experiments are carried out, with different MSDGCMG angular momenta as well as different desired attitude angles. The experimental results indicate that the MSDGCMG has a good gimbal angle rate and output torque tracking capabilities, and that the attitude stability with MSDGCMG as actuator is superior to 10−3°/s. The MSDGCMG performance testing in this paper, carried out under moving-base condition, will offer a technique base for the future research and application of MSDGCMGs.
Keywords: magnetically suspended double gimbal control moment gyroscope (MSDGCMG); attitude control; single axis air bearing table; experiment magnetically suspended double gimbal control moment gyroscope (MSDGCMG); attitude control; single axis air bearing table; experiment
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Cui, P.; Zhang, H.; Yan, N.; Fang, J. Performance Testing of a Magnetically Suspended Double Gimbal Control Moment Gyro Based on the Single Axis Air Bearing Table. Sensors 2012, 12, 9129-9145.

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