| Design and analysis of active vibration damper for telescope by linear motor | |
Du FuJia1,2 ; Zhang Zhiyong1,2; Li Hao1,2,3; Li Penghui1,2,3
| |
| 2018-07-10 | |
| 会议名称 | SPIE Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III（Vol. 10706） |
| 会议录名称 | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III |
| 会议日期 | 2018-6-10 |
| 会议地点 | Austin, Texas, United States |
| 摘要 |
The imaging quality and resolution of telescopes are deeply affected by the vibration that caused by electromechanical system and wind shake. Normally, vibration is caused by insufficient damping of the structure. In this paper, an active damper system based on linear motor is proposed to suppress vibration. The model of the whole control system is established at the beginning of this paper. LQR (Linear Quadratic Regulator) algorithm is proposed and the simulation is performed based on actual parameters of system. The results show that the system has a higher stability with higher Q value. The dynamic characteristics of the structure was obtained by analyzing the modal test data from accelerators. The experiments have been carried out to test the performance of the system. The results indicated that the active vibration damper can reduce the structure vibration 93.8% at 5.5Hz and increase the stiffness of structure. |
| 关键词 | Active Vibration Damper Modal Analysis Linear Motor Lqr Telescope |
| 学科领域 | 天文技术与方法 |
| 语种 | 英语 |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.niaot.ac.cn/handle/114a32/1543 |
| 专题 | 会议论文 |
| 作者单位 | 1.南京天文光学技术研究所 2.天文光学技术重点实验室 3.中国科学院大学 |
| 推荐引用方式 GB/T 7714 | Du FuJia,Zhang Zhiyong,Li Hao,et al. Design and analysis of active vibration damper for telescope by linear motor[C],2018. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Design and analysis （335KB） | 会议论文 | 开放获取 | CC BY-NC-SA | 浏览 下载 | ||
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