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Torben Anderssen. Profile picture.

Torben Andersen

Professor emeritus

Torben Anderssen. Profile picture.

An integrated simulation model of the Euro50

Author

  • Torben Andersen
  • Mette Owner-Petersen
  • Holger Riewaldt

Summary, in English

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.

Department/s

  • Lund Observatory

Publishing year

2002

Language

English

Pages

84-92

Publication/Series

Proceedings of SPIE - The International Society for Optical Engineering

Volume

4757

Document type

Conference paper

Publisher

SPIE

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • Wind loads

Conference name

Workshop On Integrated Modeling of Telescopes

Conference date

2002-02-05 - 2002-02-07

Conference place

Lund, Sweden

Status

Published

ISBN/ISSN/Other

  • ISSN: 0277-786X
  • ISSN: 1996-756X
  • CODEN: PSISDG