Structural analysis for the 4-m Advanced Technology Solar Telescope (ATST)

Myung K. Cho; Mark Warner; Joon Pyo Lee

doi:10.1117/12.613281

9 September 2005 Structural analysis for the 4-m Advanced Technology Solar Telescope (ATST)

Myung K. Cho, Mark Warner, Joon Pyo Lee

Proceedings Volume 5877, Optomechanics 2005; 58770O (2005) https://doi.org/10.1117/12.613281
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

Myung K. Cho, Mark Warner, and Joon Pyo Lee "Structural analysis for the 4-m Advanced Technology Solar Telescope (ATST)", Proc. SPIE 5877, Optomechanics 2005, 58770O (9 September 2005); https://doi.org/10.1117/12.613281

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