Thermal analysis of a 1.8m solar telescope mechanical structure

Cheng Li; Hao Xian; Jun Zhang

doi:10.1117/12.974259

15 October 2012 Thermal analysis of a 1.8m solar telescope mechanical structure

Cheng Li, Hao Xian, Jun Zhang

Proceedings Volume 8415, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 841512 (2012) https://doi.org/10.1117/12.974259
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

According to the thermal environment of a 1.8m open structure solar telescope, a passive thermal control scheme of the mechanical structures is designed to reduce the effects of air turbulence and thermal deformation in this paper. Geometric characteristic of the open structure and the coating properties of mechanical structure are discussed. The stringent thermal requirements for the telescope mechanical structure should be satisfied to avoid the thermal inhomogeneity of ambient air at an intolerable level. A detailed finite element model with environmental conditions is presented to analyze the thermal response of the telescope mechanical structure. Thermal deformation and stress are also studied with the same finite element model. The numerical results demonstrate that the approach of passive cooling is effective and feasible.

Citation Download Citation

Cheng Li, Hao Xian, and Jun Zhang "Thermal analysis of a 1.8m solar telescope mechanical structure", Proc. SPIE 8415, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 841512 (15 October 2012); https://doi.org/10.1117/12.974259

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