Conceptual design and structural analysis for an 8.4-m telescope

Manuel Mendoza; Alejandro Farah; Elfego Ruiz Schneider

doi:10.1117/12.563388

29 September 2004 Conceptual design and structural analysis for an 8.4-m telescope

Manuel Mendoza, Alejandro Farah, Elfego Ruiz Schneider

Proceedings Volume 5495, Astronomical Structures and Mechanisms Technology; (2004) https://doi.org/10.1117/12.563388
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

This paper describes the conceptual design of the optics support structures of a telescope with a primary mirror of 8.4 m, the same size as a Large Binocular Telescope (LBT) primary mirror. The design goal is to achieve a structure for supporting the primary and secondary mirrors and keeping them joined as rigid as possible. With this purpose an optimization with several models was done. This iterative design process includes: specifications development, concepts generation and evaluation. Process included Finite Element Analysis (FEA) as well as other analytical calculations. Quality Function Deployment (QFD) matrix was used to obtain telescope tube and spider specifications. Eight spiders and eleven tubes geometric concepts were proposed. They were compared in decision matrixes using performance indicators and parameters. Tubes and spiders went under an iterative optimization process. The best tubes and spiders concepts were assembled together. All assemblies were compared and ranked according to their performance.

Citation Download Citation

Manuel Mendoza, Alejandro Farah, and Elfego Ruiz Schneider "Conceptual design and structural analysis for an 8.4-m telescope", Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); https://doi.org/10.1117/12.563388

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