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题名:
Modal simulation and experimental verification of space-borne two dimensional turntable
作者: Zou, Dinghua1,2; Li, Zhiguo(李治国)1; Liu, Zhaohui(刘朝晖)1; Cui, Kai(崔凯)1; Zhang, Yongqiang(张永强)1,2; Zhou, Liang(周亮)1,2
出版日期: 2017
会议名称: Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
会议日期: 2017-06-04
会议地点: Beijing, China
DOI: 10.1117/12.2284587
英文摘要:

In order to avoid the resonance between the two dimensional turntable and the satellite, the modal simulation of the two dimensional turntable is carried out in this paper. And the simulation results are compared with the experimental results, combined with modal experiment, the simulation results before and after optimization are further verified. Firstly, two dimensional turntable as the research object in this paper, and it is modeled with the finite element method, then we use Patran/Nastran to conduct the modal simulation. In the modal simulation process, the bearing can be equivalent to the spring element, and the MPC element is used to instead of the spring element. And we introduce the modeling method of the MPC unit, the fundamental frequency of two dimensional turntable is obtained through modal simulation. At last, the model experiment is verified by hammering method, the frequency response functions in each direction of x, y and z are measured. Simulations and experimental results show: after optimization, the fundamental frequency of the two dimensional turntable is 42 Hz, which is higher than that of the base frequency 25 Hz, illustrating that the optimized structural design of the two dimensional turntable meets the requirements; The natural frequency and the experimental errors of three-dimensional turntable in x, y, z are 5%, which shows that MPC can simulate the bearing accurately, and is suitable for the simulation of two dimensional turntable. © 2017 SPIE.

收录类别: EI ; ISTP
会议录: AOPC 2017: Space Optics and Earth Imaging and Space Navigation
会议录出版者: SPIE
语种: 英语
作者部门: 光电测量技术实验室
卷号: 10463
产权排序: 1
ISBN号: 9781510614079
ISSN号: 0277786X
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.opt.ac.cn/handle/181661/29864
Appears in Collections:光电测量技术实验室_会议论文

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作者单位: 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No. 17 Information Avenue, Chang'an District, Xi'an; 710119, China
2.University of Chinese, Academy of Sciences, No. 19 Yuquan Road, Shijingshan District, Beijing; 100049, China

Recommended Citation:
Zou, Dinghua,Li, Zhiguo,Liu, Zhaohui,et al. Modal simulation and experimental verification of space-borne two dimensional turntable[C]. 见:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017. Beijing, China. 2017-06-04.
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