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Proceedings Paper

Integrated modeling and dynamics simulation for the TMT-M3 control system
Author(s): Yong-ting Deng; Hong-wen Li; Fei Yang; Jian-li Wang; Yan-qin Su; Hong-chao Zhao
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Paper Abstract

In order to analyze the tracking performance and design the controllers for TMT-M3 control system in the design stage. This paper presents the development of the analytical model of the gear driven large telescope using the lumped mass modeling method. The analytical model includes the telescope structure, its drives, the velocity loop and position loop. First, the modal model of a flexible structure is analyzed based on the finite-element data. And the modal model is transferred into the state-space model, in continuous-time. Next, the drive model is derived, and combined into the velocity loop and position loop. Finally, the impact of the error sources on the control loop properties is simulated. According to the simulation accuracy of the analytical modeling, the analytical model can be used in implementation, such as the model-based controllers.

Paper Details

Date Published: 2 September 2014
PDF: 7 pages
Proc. SPIE 9280, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 92800J (2 September 2014); doi: 10.1117/12.2068319
Show Author Affiliations
Yong-ting Deng, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Univ. of Chinese Academy of Sciences (China)
Hong-wen Li, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Fei Yang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jian-li Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yan-qin Su, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Univ. of Chinese Academy of Sciences (China)
Hong-chao Zhao, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 9280:
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Wenhan Jiang; Myung K. Cho; Fan Wu, Editor(s)

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