Translator Disclaimer
Paper
10 July 2008 Large telescopes and the art of bridge building
Author Affiliations +
Abstract
In the last decade the evolution of large or extreme large earthbound optical telescopes speeded up in an unforeseen manner. The technological development is driven by the issues of the complex and challenging active and adaptive optics. But the design of the telescope structure and mechanics - as the backbone of the optics - is also increasing in the importance for costs and later performance. Structural mechanics is an old art, starting a long time ago with building bridges and gothic cathedrals etc. Essence of this art is the understanding of forces, load paths, weight and balance, strength and related deformations. The paper develops a perception of the structural subsystems of telescopes ("tube structure", "alidade") from the viewpoint of structural mechanics as learned from the "bridge builders". Actual example is a proposal for the design of ESO's 42m E-ELT.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
H. J. Kärcher "Large telescopes and the art of bridge building", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70124K (10 July 2008); https://doi.org/10.1117/12.791486
PROCEEDINGS
12 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Grubbs of Dublin: Victorian entrepreneurs
Proceedings of SPIE (June 08 2005)
Why not exposed extreme large telescopes?
Proceedings of SPIE (July 11 2006)
Design strategies for very large telescopes
Proceedings of SPIE (July 01 1990)
Telescope Structures: An Evolutionary Overview
Proceedings of SPIE (June 03 1987)

Back to Top