Structural analysis and modifications to the V. M. Blanco telescope for dark energy camera (DECam) installation

被引：2

作者：

Schurter, P. ^{[1
]}

Montane, A. ^{[1
]}

Tighe, R. ^{[1
]}

Abbott, Timothy M. C. ^{[1
]}

Munoz, F. ^{[1
]}

Neill, Douglas ^{[2
]}

机构：

[1] Cerro Tololo Interamer Observ, La Serena, Chile

[2] Natl Opt Astron Observ, Tucson, AZ 85719 USA

来源：

GROUND-BASED AND AIRBORNE TELESCOPES V | 2014年 / 9145卷

关键词：

Blanco Telescope; DECam; structural analysis; FEA; counterweight;

D O I：

10.1117/12.2057717

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To substantially upgrade the Blanco telescope a new Dark Energy Camera (DECam)(5) was developed. The Blanco telescope was commissioned in 1974 before the benefits of modern heavy instruments were foreseen. Consequently, the mass of DECam is greater than the original instrument payload. DECam was installed on the Blanco in 2012(1, 2). The telescope mount was rebalanced about the declination assembly by redesigning the Cassegrain cage to accommodate a significant increase in balancing mass. Finite element analysis was used to both determine the structural integrity of the new telescope configuration and to predict the effects of this added mass on the relative displacement between the primary and secondary mirrors. The counterweight system is described.

引用

页数：7

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