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Proceedings Paper

Mechanical analysis of primary mirror in Space Solar Telescope
Author(s): Zhiping Chen; Shimo Yang
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Paper Abstract

Primary mirror with ф 1m and f 3.5m is the most important optical part in Space Solar Telescope (SST), which is designed to make observations of transient and steady state solar hydrodynamic and magnetohydrodynamic processes and is being researched, developed and manufactured by National Astronomical Observatories. The surface shape qualification of primary mirror is λ/40(rms.), where λ is 0.6μm. The primary mirror structure, a crucial linker for the optical and other subsystems, includes primary mirror and its supporting frame. Therefore, this part must satisfy the optical sufficient strength, stiffness, and thermal stability requirements under the space environment and in the launching process. In this paper,it first describes the primary mirror structure and its connection. Then it analyzes the mechanical specialty under different load cases by Patran/Nastran software. In order to simulate the space environment and evaluate the influence of space heat to the primary mirror, it also presents space thermal analyses. Calculation results show this structure can satisfy the primary mirror with the requirement of optical demands. However, the thermal problem needs to be calculated and test with strict way. Finally, the paper gives conclusions and forward suggestions.

Paper Details

Date Published:
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Proc. SPIE 5171, Telescopes and Instrumentation for Solar Astrophysics, ; doi: 10.1117/12.505686
Show Author Affiliations
Zhiping Chen, National Astronomical Observatory (China)
Hangzhou Institute of Electronics & Engineering (China)
Shimo Yang, National Astronomical Observatory (China)


Published in SPIE Proceedings Vol. 5171:
Telescopes and Instrumentation for Solar Astrophysics
Silvano Fineschi; Mark A. Gummin, Editor(s)

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