Simulations of the Large Size Telescope drive system

Quentin Piel; Laurent Brunetti; Josef Eder; Armand Fiasson; Gian Paolo Guizzo; Inocencio Monteiro; Koji Noda; Thomas Schweizer

doi:10.1117/12.2313336

9 August 2018 Simulations of the Large Size Telescope drive system

Quentin Piel, Laurent Brunetti, Josef Eder, Armand Fiasson, Gian Paolo Guizzo, Inocencio Monteiro, Koji Noda, Thomas Schweizer

Author Affiliations +

Proceedings Volume 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII; 1070925 (2018) https://doi.org/10.1117/12.2313336
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Large Size Telescope (LST) is the largest telescope of the Cherenkov Telescopes Array (CTA), the next-generation ground-based γ-ray observatory. Its low weight and powerful motors aim to make it repointing any position in the sky in less than 20 s with a position accuracy lower than 30 arcsec. However, such a fast rotation of a big telescope implies constraints on motors and telescope structure. For this purpose, a Matlab/Simulink model taking into account all the components of LST was developed. This static model of LST is perturbed by several kinds of disturbances such as wind loading or motors effects which apply torques on the structure of LST. Numerous outputs such as pointing accuracy, power consumption and reached velocity can be monitored. These monitored parameters allow us to check the fulfilling of technical requirements by using the chosen components and to have references for the first tests on the real telescope.

Citation Download Citation

Quentin Piel, Laurent Brunetti, Josef Eder, Armand Fiasson, Gian Paolo Guizzo, Inocencio Monteiro, Koji Noda, and Thomas Schweizer "Simulations of the Large Size Telescope drive system", Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 1070925 (9 August 2018); https://doi.org/10.1117/12.2313336

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