Translator Disclaimer
Paper
1 August 1990 Dynamics and control performance of a very large telescopic structure
Author Affiliations +
Proceedings Volume 1271, Adaptive Optics and Optical Structures; (1990) https://doi.org/10.1117/12.20419
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands
Abstract
Extensive finite-element calculations have been done on a novel type of optical telescope mounting to estimate the dynamic performance as well as the dynamic sensitivity of specific components of the structure. The finite-element analysis led to improved dynamics by welldirected stiffening of the basic structure. At the end of the process a lowest structural eigenfrequency of 8 Hz could be achieved for a 12-m telescope. The finite-element model of this design was also used to estimate the tracking performance of the mount directly. Moreover, it was used to establish and test a control scheme for the telescope that is able to damp the structure within less than a second but residuals in tracking error remain on smaller time scales. Those can not be removed by driving the entire mount but are to be eliminated via fine correction in a second stage.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Harald E. Nicklas, Hans Juergen Kaercher, D. Maurer, and B. Arras "Dynamics and control performance of a very large telescopic structure", Proc. SPIE 1271, Adaptive Optics and Optical Structures, (1 August 1990); https://doi.org/10.1117/12.20419
PROCEEDINGS
9 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Design of the Giant Magellan Telescope
Proceedings of SPIE (July 22 2014)
Optomechanical design of TMT NFIRAOS Subsystems at INO
Proceedings of SPIE (August 23 2017)
WIYN active optics: a platform for AO
Proceedings of SPIE (September 11 1998)
Integrated simulation model of the Euro50
Proceedings of SPIE (July 30 2002)
Design strategies for very large telescopes
Proceedings of SPIE (July 01 1990)
Adaptive optics and MCAO for the 4 m European Solar...
Proceedings of SPIE (July 28 2010)

Back to Top