TMT telescope structure system: design and development progress report

Kei Szeto; Scott Roberts; Mike Gedig; Glenn Austin; Christie Lagally; Steven Patrick; Dominic Tsang; Doug MacMynowski; Mark Sirota; Larry Stepp; Peter M. Thompson

doi:10.1117/12.787002

10 July 2008 TMT telescope structure system: design and development progress report

Kei Szeto, Scott Roberts, Mike Gedig, Glenn Austin, Christie Lagally, Steven Patrick, Dominic Tsang, Doug MacMynowski, Mark Sirota, Larry Stepp, Peter M. Thompson

Author Affiliations +

Proceedings Volume 7012, Ground-based and Airborne Telescopes II; 70122G (2008) https://doi.org/10.1117/12.787002
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

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.

Citation Download Citation

Kei Szeto, Scott Roberts, Mike Gedig, Glenn Austin, Christie Lagally, Steven Patrick, Dominic Tsang, Doug MacMynowski, Mark Sirota, Larry Stepp, and Peter M. Thompson "TMT telescope structure system: design and development progress report", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70122G (10 July 2008); https://doi.org/10.1117/12.787002

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