Design Concepts for the EST Mount

被引：1
作者：
Kaercher, Hans J. [1 ]
Suess, Martin [1 ]
Fischer, David [1 ]
机构：
[1] MT Mechatron, D-55130 Mainz, Germany
来源：
GROUND-BASED AND AIRBORNE TELESCOPES IV | 2012年 / 8444卷
关键词：
Telescope mount; structural optimization; axes mechanisms; pointing performance;
D O I：
10.1117/12.925159
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The EST has unique an optical layout, with an on-axis Gregorian tube system and the altitude axis behind the M1 mirror unit - a great challenge for the mount designer in regard of balancing. Three different structural design concepts and various alternatives for the bearing and drive systems were investigated. Hydrostatic bearings with direct drives are compared with roller bearings and geared drives. The influence of available bearing and drive technology were investigated by FE calculations, dynamic analysis and end-to-end simulations. The finally recommended design concept is based on large-diameter segmented roller bearings and direct drives in both axes.
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页数：12
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