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Proceedings Paper

TMT telescope structure system: design and development progress report
Author(s): Kei Szeto; Scott Roberts; Mike Gedig; Glenn Austin; Christie Lagally; Steven Patrick; Dominic Tsang; Doug MacMynowski; Mark Sirota; Larry Stepp; Peter M. Thompson
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Paper Abstract

The Thirty Meter Telescope (TMT) project has revised the reference optical configuration from an Aplanatic Gregorian to a Ritchey-Chrétien design. This paper describes the revised telescope structural design and outlines the design methodology for achieving the dynamic performance requirements derived from the image jitter error budget. The usage of transfer function tools which incorporate the telescope structure system dynamic characteristics and the control system properties is described along with the optimization process for the integrated system. Progress on the structural design for seismic considerations is presented. Moreover, mechanical design progress on the mount control system hardware such as the hydrostatic bearings and drive motors, cable wraps and safety system hardware such as brakes and absorbers are also presented.

Paper Details

Date Published: 10 July 2008
PDF: 12 pages
Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70122G (10 July 2008); doi: 10.1117/12.787002
Show Author Affiliations
Kei Szeto, Herzberg Institute of Astrophysics, National Research Council Canada (Canada)
Scott Roberts, Herzberg Institute of Astrophysics, National Research Council Canada (Canada)
Mike Gedig, Empire Dynamic Structures (Canada)
Glenn Austin, Empire Dynamic Structures (Canada)
Christie Lagally, Empire Dynamic Structures (Canada)
Steven Patrick, Empire Dynamic Structures (Canada)
Dominic Tsang, Empire Dynamic Structures (Canada)
Doug MacMynowski, Thirty Meter Telescope Project (United States)
Mark Sirota, Thirty Meter Telescope Project (United States)
Larry Stepp, Thirty Meter Telescope Project (United States)
Peter M. Thompson, Systems Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 7012:
Ground-based and Airborne Telescopes II
Larry M. Stepp; Roberto Gilmozzi, Editor(s)

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