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Structural design of 3m class ground based telescope elevation ring
Tan, Yufeng1,2,3; Wang, Jihong1,2; Ren, Ge1,2; Xie, Zongliang1,2,3; Zhu, Fuyin1,2,3; Jiang, Chuan1,2,3
2016
发表期刊Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
ISSN0277-786X
卷号9682页码:96820R
文章类型C
摘要In order to improve the dynamic stiffness of telescope mount, the accuracy of aiming and stability of optical system, a topology optimization method based on the theory of variable density and taking maximum stiffness as objective function is studied. In the topology optimization analysis of elevation ring, one of the most important members of the telescope mount, two kinds of structural are designed: one is a traditional plate welding structure and the other is a combination of plate welding and truss welding. Furthermore, the stiffness and modal performance of the elevation ring in different performances are analyzed and compared. The results show that in meeting the strength and stiffness of the premise, the mass of elevation ring with plate welding and truss welding is 7.00T and the moment of inertia is 11.94 t•m2. What's more, the total deformation in the horizontal direction and the zenith direction are 6.70μm and 55.86μm, respectively; the stress is within stress range of material's promise; the modal is 105.9Hz.Compared with the traditional structural with plate welding, this new structural design approached to ensure the dynamic stiffness while effectively reducing its own weight with reduction rate 10.7% and moments of inertia with reduction rate 12.3%. This new structural of plate welding and truss welding has obvious advantages in lightweight design. This new design method based on topology optimization will provide efficient help to later components design of the telescope mount. © 2016 SPIE.
关键词Density Functional Theory Finite Element Method Manufacture Mirrors Optical Systems Optical Testing Shape Optimization Stiffness Telescopes Topology Trusses Welding
DOI10.1117/12.2243227
收录类别SCI ; Ei
语种英语
项目资助者Chinese Academy of Sciences, Institute of Optics and Electronics (IOE) ; The Chinese Optical Society (COS)
WOS记录号WOS:000387746500026
引用统计
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8539
专题光电工程总体研究室(一室)
作者单位1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan
2.610209, China
3. Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu Sichuan
4.610209, China
5. University of Chinese Academy of Sciences, Beijing
6.100039, China
推荐引用方式
GB/T 7714
Tan, Yufeng,Wang, Jihong,Ren, Ge,et al. Structural design of 3m class ground based telescope elevation ring[J]. Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes,2016,9682:96820R.
APA Tan, Yufeng,Wang, Jihong,Ren, Ge,Xie, Zongliang,Zhu, Fuyin,&Jiang, Chuan.(2016).Structural design of 3m class ground based telescope elevation ring.Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes,9682,96820R.
MLA Tan, Yufeng,et al."Structural design of 3m class ground based telescope elevation ring".Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes 9682(2016):96820R.
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