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4 February 2003 Design and analysis of support system of LAMOST primary mirror
Xuefei Gong; Xiangqun Cui; Haiyuan Chen; Xizhang Ye; Ru Zhang
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Proceedings Volume 4837, Large Ground-based Telescopes; (2003) https://doi.org/10.1117/12.456769
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States
Abstract
LAMOST (The Large Sky Area Multi-object Fiber Spectroscopic Telescope) is a reflecting Schmidt telescope. There are two large segmented mirrors in LAMOST: One is the Schmidt plate MA, and the other is the spherical primary mirror MB. The dimension of MB is about 6.7m×6m and it is face down in 25°. MB is composed of 37 hexagonal sub-mirrors. During the observation, one should maintain the correct mirror figure for each sub-mirror and co-focus for all 37 sub-mirrors to obtain the good image, even it is an unconventional designed telescope without tracking movement on the primary mirror. This paper presents the design and the finite element analysis for the whole primary mirror support system, which includes the optimization of the mirror support points distribution, the design and the testing of the prototype of MB sub-cell, the structure analysis and the design of the mirror support truss.
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Xuefei Gong, Xiangqun Cui, Haiyuan Chen, Xizhang Ye, and Ru Zhang "Design and analysis of support system of LAMOST primary mirror", Proc. SPIE 4837, Large Ground-based Telescopes, (4 February 2003); https://doi.org/10.1117/12.456769
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