LSST telescope modeling overview

J. Sebag; J. Andrew; G. Angeli; C. Araujo; J. Barr; S. Callahan; M. Cho; C. Claver; F. Daruich; W. Gressler; E. Hileman; M. Liang; G. Muller; D. Neill; W. Schoening; M. Warner; O. Wiecha; B. Xin; Alfredo Orden Martinez; Manuel Perezagua Aguado; Luis García Marchena; Ismael Ruiz de Argandoña

doi:10.1117/12.2233178

19 August 2016 LSST telescope modeling overview

J. Sebag, J. Andrew, G. Angeli, C. Araujo, J. Barr, S. Callahan, M. Cho, C. Claver, F. Daruich, W. Gressler, E. Hileman, M. Liang, G. Muller, D. Neill, W. Schoening, M. Warner, O. Wiecha, B. Xin, Alfredo Orden Martinez, Manuel Perezagua Aguado, Luis García Marchena, Ismael Ruiz de Argandoña

Author Affiliations +

Proceedings Volume 9911, Modeling, Systems Engineering, and Project Management for Astronomy VII; 99112E (2016) https://doi.org/10.1117/12.2233178
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

During this early stage of construction of the Large Synoptic Survey Telescope (LSST), modeling has become a crucial system engineering process to ensure that the final detailed design of all the sub-systems that compose the telescope meet requirements and interfaces. Modeling includes multiple tools and types of analyses that are performed to address specific technical issues. Three-dimensional (3D) Computeraided Design (CAD) modeling has become central for controlling interfaces between subsystems and identifying potential interferences. The LSST Telescope dynamic requirements are challenging because of the nature of the LSST survey which requires a high cadence of rapid slews and short settling times. The combination of finite element methods (FEM), coupled with control system dynamic analysis, provides a method to validate these specifications. An overview of these modeling activities is reported in this paper including specific cases that illustrate its impact.

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J. Sebag, J. Andrew, G. Angeli, C. Araujo, J. Barr, S. Callahan, M. Cho, C. Claver, F. Daruich, W. Gressler, E. Hileman, M. Liang, G. Muller, D. Neill, W. Schoening, M. Warner, O. Wiecha, B. Xin, Alfredo Orden Martinez, Manuel Perezagua Aguado, Luis García Marchena, and Ismael Ruiz de Argandoña "LSST telescope modeling overview", Proc. SPIE 9911, Modeling, Systems Engineering, and Project Management for Astronomy VII, 99112E (19 August 2016); https://doi.org/10.1117/12.2233178

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