Dynamic modelling and observation of micro-vibrations generated by a Single Gimbal Control Moment Gyro

被引：103

作者：

Luo, Qing ^{[1
]}

Li, Dongxu ^{[1
]}

Zhou, Weiyong ^{[1
]}

Jiang, Jianping ^{[1
]}

Yang, Guang ^{[2
]}

Wei, Xinsheng ^{[2
]}

机构：

[1] Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha 410073, Hunan, Peoples R China

[2] Shanghai Key Lab Aerosp Intelligent Control Tech, Shanghai 200233, Peoples R China

来源：

JOURNAL OF SOUND AND VIBRATION | 2013年 / 332卷 / 19期

基金：

中国国家自然科学基金;

关键词：

BALL-BEARINGS; WHEEL; DESIGN;

D O I：

10.1016/j.jsv.2013.03.034

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Control Moment Gyros (CMGs) are commonly used as actuators of attitude control in spacecraft. Micro-vibrations generated by CMGs will influence the performance of high-sensitivity instruments on-board the spacecraft; however, the micro-vibration characteristics of CMGs are not yet clearly understood. This research focuses on dynamic modelling and observation of micro-vibrations generated by CMGs. Firstly, the energy method was employed to develop a theoretical model describing a Single Gimbal CMG (SGCMG). This model fully considers the compliance of the internal bearing systems and the coupled motions of the rotating flywheel and the gimbal. Secondly, the micro-vibration characteristics of a SGCMG were tested using the standard Kistler table. Finally, the theoretical model was validated by comparing it against the disturbance characteristics obtained from the experimental tests, which revealed that predictions of the theoretical model consistently predicted the results of experimental tests. Therefore, the model presented here can be used to predict the micro-vibration characteristics of a SGCMG. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：4496 / 4516

页数：21

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