From giant telescopes design: a new method of modal thermal analysis for innovative telescopes and instrumentation

G. Marchiori; M. Tordi; F. Rampini; M. Spinola; R. Bressan; A. Colovini; M. Faccioni

doi:10.1117/12.2630297

29 August 2022 From giant telescopes design: a new method of modal thermal analysis for innovative telescopes and instrumentation

G. Marchiori, M. Tordi, F. Rampini, M. Spinola, R. Bressan, A. Colovini, M. Faccioni

Author Affiliations +

Proceedings Volume 12182, Ground-based and Airborne Telescopes IX; 1218243 (2022) https://doi.org/10.1117/12.2630297
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Proper thermal behavior of a telescope mainly means three things: 1) avoid thermal-induced deflections, 2) avoid high solid-to-air temperature differences that cause seeing, and 3) maintain the temperature of the electronics and of the optical instruments within their operative range. To evaluate the ability of the telescope to fulfil the thermal aims in the design phase, at least two types of thermal models are used: finite element models, and dynamic block models. EIE developed a complete procedure to integrate the two types of thermal models, based on the concept of thermal modal analysis.

Citation Download Citation

G. Marchiori, M. Tordi, F. Rampini, M. Spinola, R. Bressan, A. Colovini, and M. Faccioni "From giant telescopes design: a new method of modal thermal analysis for innovative telescopes and instrumentation", Proc. SPIE 12182, Ground-based and Airborne Telescopes IX, 1218243 (29 August 2022); https://doi.org/10.1117/12.2630297

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