ESO ELT: vibration performance and budget verification: measured equipment data as input to telescope model

B. Sedghi; P. Zuluaga Ramirez; D. Pilbauer; S. Leveratto; U. Lampater; M. Müller; G. Jakob; M. Haug; M. Accardo; Y. Lammen; J. Abad-Pastor; J. C. González-Herrera

doi:10.1117/12.2628907

25 August 2022 ESO ELT: vibration performance and budget verification: measured equipment data as input to telescope model

B. Sedghi, P. Zuluaga Ramirez, D. Pilbauer, S. Leveratto, U. Lampater, M. Müller, G. Jakob, M. Haug, M. Accardo, Y. Lammen, J. Abad-Pastor, J. C. González-Herrera

Author Affiliations +

Proceedings Volume 12187, Modeling, Systems Engineering, and Project Management for Astronomy X; 1218714 (2022) https://doi.org/10.1117/12.2628907
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

ESO took a systematic approach at earliest phases of the ELT programme to address different aspects of vibration at the telescope, from modelling, error budgeting, requirement specifications, to envisaging verification and mitigation methods. Recent activities focused on measuring and characterizing the vibrational forces generated by typical equipment in the observatory. In addition, the measurements are performed to design and verify the efficiency of the required isolation systems. In this paper, a complete system analysis using these measurement data as input to the detailed model of the telescope structure combined with hosted units, i.e. mirrors, instruments and other equipment, (all at final design phase) is presented. The analysis serves as a verifying tool to observe the actual state of the performance versus the top-level budget. It is also discussed how the results are used for improving the design and envisaging the potential mitigation strategies.

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B. Sedghi, P. Zuluaga Ramirez, D. Pilbauer, S. Leveratto, U. Lampater, M. Müller, G. Jakob, M. Haug, M. Accardo, Y. Lammen, J. Abad-Pastor, and J. C. González-Herrera "ESO ELT: vibration performance and budget verification: measured equipment data as input to telescope model", Proc. SPIE 12187, Modeling, Systems Engineering, and Project Management for Astronomy X, 1218714 (25 August 2022); https://doi.org/10.1117/12.2628907

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