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Proceedings Paper

Structural analysis for the 4-m Advanced Technology Solar Telescope (ATST)
Author(s): Myung K. Cho; Mark Warner; Joon Pyo Lee
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Paper Abstract

With a 4 m off-axis aspherical primary mirror, integrated adaptive optics, low scattered light, infrared coverage, and state-of-the-art post focus instrumentation, the Advanced Technology Solar Telescope (ATST) will be the world's most powerful solar research telescope. In order to achieve the required performance specifications of the telescope, the ATST project selected an alt-az telescope mount to support and position the major optic assemblies. In addition, the telescope incorporates a large diameter (16.4m) coude rotator lab that is capable of supporting multiple large instrument assemblies. This lab can rotate about its azimuth axis independent of the alt/az mount above it. In this paper, we describe an overview of the telescope structure, discuss the basic design parameters, and summarize the results of initial finite element analyses. The results include static analyses (gravity and average static wind loading), telescope natural modes, dynamic response to wind loadings, and a seismic loading analysis. Image motion at the instrument focal plane is also calculated based on line of sight (LOS) sensitivity equations integrated into the finite element models.

Paper Details

Date Published: 9 September 2005
PDF: 11 pages
Proc. SPIE 5877, Optomechanics 2005, 58770O (9 September 2005); doi: 10.1117/12.613281
Show Author Affiliations
Myung K. Cho, National Optical Astronomy Observatory (United States)
Mark Warner, National Solar Observatory (United States)
Joon Pyo Lee, Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 5877:
Optomechanics 2005
Alson E. Hatheway, Editor(s)

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