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Proceedings Paper

Friction drive and bogies for OWL's main axes: technological step backwards or cost effective alternative
Author(s): Enzo Brunetto; Franz Koch; F. Biancat Marchet; Martin Dimmler
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Paper Abstract

The drive and bearing technologies have a major impact on the static and dynamic performances of a steerable telescope. The costs related to the complexity of the design and its Reliability, Availability, Maintainability and Safety (RAMS) are not negligible. The design constraints of Extremely Large Telescopes (ELT) depart from those applicable to the current generation of 8 to 10 meter class telescopes, thus suggesting that alternative solutions should be investigated. This paper discusses the feasibility of implementing a design based on friction drives and bogies, tailored to OWL’s azimuthal and altitude degrees of freedom. The estimated static and dynamic performance of the mechanical structure, the achievable angular resolution, the optimal distribution of loads and stresses, the RAMS performance and finally its cost efficiency, make this solution particularly attractive.

Paper Details

Date Published: 30 January 2003
PDF: 12 pages
Proc. SPIE 4840, Future Giant Telescopes, (30 January 2003); doi: 10.1117/12.459931
Show Author Affiliations
Enzo Brunetto, European Southern Observatory (United States)
Franz Koch, European Southern Observatory (United States)
F. Biancat Marchet, European Southern Observatory (Germany)
Martin Dimmler, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 4840:
Future Giant Telescopes
J. Roger P. Angel; Roberto Gilmozzi, Editor(s)

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