E-ELT update of project and effect of change to 39m design
E-ELT update of project and effect of change to 39m design
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E-ELT项目更新以及39m设计变更的影响
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Mark Cassali
中科院分区：
文献类型：
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作者：
A. McPherson;J. Spyromilio;M. Kissler;S. Ramsay;E. Brunetto;P. Dierickx;Mark Cassali
去年，E-ELT 的基线设计经过修改。此次修订的目的是为了显着节省成本并降低主要项目的风险。主镜直径略有减小至39 m，望远镜总高度也相应降低。本文介绍了 ESO 和各种承包商为审查 EELT 设计以匹配修改后的基线而开展的工作。 39 米基线设计的详细设计和施工规划以及详细成本估算已更新。 2011 年 6 月，ESO 理事会正式批准这一修改后的设计作为 E-ELT 修订基线。将描述设计驱动因素和平衡成本因素以及此阶段采取的风险降低措施。这将最终形成设计，一旦获得 ESO 理事会的批准，设计就可以进入施工阶段。
During the last year a modified baseline design for the E-ELT has been developed. The aim of this revision was both to achieve a significant cost saving and to reduce risk on major items. The primary mirror diameter was slightly reduced to 39 m and the total height of the telescope also decreased accordingly. This paper describes the work performed by ESO and a variety of contractors to review the EELT design to match the modified baseline. Detailed design and construction planning, as well as detailed cost estimates were updated for the 39-metre baseline design. In June 2011, ESO Council formally endorsed this modified design as the E-ELT revised baseline. The design drivers and balancing cost factors will be described along with the risk reduction measures taken during this phase. This will culminate in the design which has been agreed as being ready to move forward to construction once approval from ESO Council has been achieved.