Micro-vibration test of a reaction wheel after the mechanical test and transferring property through a shafting | |
Cui, Kai; She, Wenji; Gao, Xiong; Li, Zhiguo; Zheng, Zhiqi; Wang, Huan | |
2019 | |
会议日期 | 2018-11-26 |
会议地点 | Hefei, China |
关键词 | Reaction Wheel Angular Micro-vibration Precision Pointing Shafting Assemble Liner Accelerometer Micro-vibration Transferring |
卷号 | 11068 |
DOI | 10.1117/12.2523186 |
英文摘要 | The spacecraft micro-vibration restricts the smoothness of satellite-born pointing assembles, especially for space-based laser communication, it may cause more capacity loss. A precision shafting is often the key component, connecting the satellite and the optical antenna, and transferring micro-vibration from the satellite bus to the above payload. The oscillation characteristics of the Reaction Wheel(RW) subjected to mechanical tests was implemented via pairs of liner accelerometers and acquisition system, then the micro-vibration transfer property through shafting were studied. The results showed that the RW vibration standard deviation (STD) magnified about 5 times to 30mg∼50mg in time domain after the mechanical test, the FFT analysis in frequency domain showed the vibration response frequency was spurious, but the main frequency of about 430Hz and 860Hz which matched the frequency multiplication of the frequency the RW bearing balls passing the point defects in the bearing inner part. The liner acceleration and angular velocity was almost direct ratio to the RW speed, and the RW tangential vibration seemed to be more sensitive to the speed. The space used precision shafting showed perfect attenuation for a high frequency angular vibration transferring, the attenuation ratio was about 70%. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. |
产权排序 | 1 |
会议录 | Second Symposium on Novel Technology of X-Ray Imaging |
会议录出版者 | SPIE |
语种 | 英语 |
ISSN号 | 0277786X;1996757X |
ISBN号 | 9781510628267 |
WOS记录号 | WOS:000473327700015 |
内容类型 | 会议论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/31527] |
专题 | 西安光学精密机械研究所_光电测量技术实验室 |
作者单位 | Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China |
推荐引用方式 GB/T 7714 | Cui, Kai,She, Wenji,Gao, Xiong,et al. Micro-vibration test of a reaction wheel after the mechanical test and transferring property through a shafting[C]. 见:. Hefei, China. 2018-11-26. |
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