Design and dynamic analysis of micro-vibration isolator for Single Gimbal Control Moment Gyro

摘要：

　　Control moment gyros(CMGs)are widely used for attitude control in spacecraft.However,micro-vibrations generated from these high speed spinning actuators has a significant impact on high-sensitivity space mission.Based on the energy dissipation mechanism of viscoelastic material,this research puts forward a passive isolator for Single Gimbal CMG(SGCMG).Dynamic model of this proposed isolator is developed and analyzed,and then isolation performance is improved through parameters optimization.Numerical simulations indicate that disturbances with frequency above 40Hz can be isolated in all six degrees of freedom.In addition,the resonant peak in transmissibility has been greatly suppressed due to the structural damping that provided by viscoelastic material.

关键词： SGCMG Micro-vibration isolator Viscoelastic material Dynamic analysis Parameters Optimization

作者: Shi Shenghao Li Dongxu Luo Qing

作者单位: College of Aerospace Science and Engineering,National University of Defense Technology,No. 47,Yanwachi Street,Changsha 410073,China

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-9

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）