| 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
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| 2018-07-10 | |
| Conference Name | SPIE Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III（Vol. 10706） |
| Source Publication | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III |
| Conference Date | 2018-6-10 |
| Conference Place | Austin, Texas, United States |
| Abstract |
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. |
| Keyword | Active Vibration Damper Modal Analysis Linear Motor Lqr Telescope |
| Subject Area | 天文技术与方法 |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://ir.niaot.ac.cn/handle/114a32/1543 |
| Collection | 会议论文 |
| Affiliation | 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 |
| Recommended Citation 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Design and analysis （335KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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