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An integrated simulation model of the Euro50

Andersen, Torben LU ; Owner-Petersen, Mette LU and Riewaldt, Holger LU (2002) Workshop On Integrated Modeling of Telescopes In Proceedings of SPIE - The International Society for Optical Engineering 4757. p.84-92
Abstract
The Euro50 is a proposed optical telescope with an equivalent aperture of 50 m. It will have a segmented primary mirror and full adaptive optics. To study the interaction of the telescope structure, the control system and the optics, an integrated simulation model has been formulated. The mechanical model is a modal version of an Ansys finite element model. The optics model is based on ray tracing and physical optics. The segments model takes the alignment servos and the segment dynamics into account. Wind variation over the primary mirror is included. Segment control system modeling is in progress. First results clearly demonstrate that a good enclosure is needed to protect the telescope well against wind. The results also suggest that... (More)
The Euro50 is a proposed optical telescope with an equivalent aperture of 50 m. It will have a segmented primary mirror and full adaptive optics. To study the interaction of the telescope structure, the control system and the optics, an integrated simulation model has been formulated. The mechanical model is a modal version of an Ansys finite element model. The optics model is based on ray tracing and physical optics. The segments model takes the alignment servos and the segment dynamics into account. Wind variation over the primary mirror is included. Segment control system modeling is in progress. First results clearly demonstrate that a good enclosure is needed to protect the telescope well against wind. The results also suggest that the segment alignment system must have a bandwidth well above the lowest eigenfrequencies of the telescope. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Wind loads
in
Proceedings of SPIE - The International Society for Optical Engineering
volume
4757
pages
9 pages
publisher
The International Society for Optical Engineering
conference name
Workshop On Integrated Modeling of Telescopes
external identifiers
  • other:CODEN: PSISDG
  • scopus:0036454543
ISSN
0277-786X
1996-756X
DOI
10.1117/12.489824
language
English
LU publication?
yes
id
a918d599-1c19-4d85-94e8-fc8932a0f317 (old id 610547)
date added to LUP
2007-11-23 13:34:19
date last changed
2017-01-01 04:34:14
@inproceedings{a918d599-1c19-4d85-94e8-fc8932a0f317,
  abstract     = {The Euro50 is a proposed optical telescope with an equivalent aperture of 50 m. It will have a segmented primary mirror and full adaptive optics. To study the interaction of the telescope structure, the control system and the optics, an integrated simulation model has been formulated. The mechanical model is a modal version of an Ansys finite element model. The optics model is based on ray tracing and physical optics. The segments model takes the alignment servos and the segment dynamics into account. Wind variation over the primary mirror is included. Segment control system modeling is in progress. First results clearly demonstrate that a good enclosure is needed to protect the telescope well against wind. The results also suggest that the segment alignment system must have a bandwidth well above the lowest eigenfrequencies of the telescope.},
  author       = {Andersen, Torben and Owner-Petersen, Mette and Riewaldt, Holger},
  booktitle    = {Proceedings of SPIE - The International Society for Optical Engineering},
  issn         = {0277-786X},
  keyword      = {Wind loads},
  language     = {eng},
  pages        = {84--92},
  publisher    = {The International Society for Optical Engineering},
  title        = {An integrated simulation model of the Euro50},
  url          = {http://dx.doi.org/10.1117/12.489824},
  volume       = {4757},
  year         = {2002},
}