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dc.contributor.authorDribusch, C.
dc.contributor.authorConan, R.
dc.contributor.authorRomano, Rodrigo Alvite
dc.contributor.authorShabram, M.
dc.contributor.authorFitzpatrick, H.
dc.date.accessioned2024-10-11T14:09:19Z
dc.date.available2024-10-11T14:09:19Z
dc.date.issued2024
dc.identifier.citationProc SPIE Int Soc Opt Eng
dc.identifier.isbn978-151067521-6
dc.identifier.issn0277-786X
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85204717060&doi=10.1117%2f12.3019259&partnerID=40&md5=6901732d0c1513987c6aee9074b8e295
dc.identifier.urihttps://repositorio.maua.br/handle/MAUA/579
dc.description.abstractThe Giant Magellan Telescope Project relies heavily on integrated modeling (IM) to validate various high-level performance requirements and operating conditions of its subsystems. The deformable nature of optics and structures play a central role in these efforts, and finite-element methods are the natural choice to approximate this behavior. The integrated modeling group at GMTO maintains a detailed FE model (mesh) of the entire telescope from foundation to top-end. Representations derived from this model are a very important component of simulations studying the effects of vibrations and misalignments due to wind, gravity, temperature variations, drives, actuators, utilities, and instruments on the image formation process. This paper introduces strategies and methods specifically tailored to the unique requirements and constraints of the project, surrounding this FEM for systems engineering purposes at GMTO. This covers two closely related topics of which the second is the main focus of this paper: First, the mesh assembly, maintenance and verification processes that build upon sub-system FE modeling efforts to minimize the resources required to keep the model up-to-date with the state of the design and provide variants for trade studies. The second topic is the model abstraction process that generates static and dynamic (modal) representations of the model, primarily used in integrated time-domain simulations that also incorporate controls, optical computations and environmental inputs. The strategies and methods for this second part must take into account, among other factors, the very large size of the FE mesh, the requirements for long duration time-domain simulations with very small time steps, the very large number of inputs and outputs needed to accurately capture active and adaptive optics, the continuous evolution of designs and interfaces, verification practices, and advances in cloud computing. © 2024 SPIE.en
dc.languageInglêspt_BR
dc.publisherSPIEen
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering
dc.relation.haspartModeling, Systems Engineering, and Project Management for Astronomy XI 2024
dc.rightsAcesso Restrito
dc.sourceScopusen
dc.subjectDynamicsen
dc.subjectFEMen
dc.subjectGround Based Telescopeen
dc.subjectIntegrated Modelingen
dc.subjectModal Representationen
dc.subjectDigital elevation modelen
dc.subjectFiber optic sensorsen
dc.subjectKnowledge acquisitionen
dc.subjectRolling resistanceen
dc.subjectStructural dynamicsen
dc.subjectVibrations (mechanical)en
dc.subjectElement methoden
dc.subjectFE modelen
dc.subjectGiant magellan telescopesen
dc.subjectGround-based telescopesen
dc.subjectIntegrated modelingen
dc.subjectModal representationen
dc.subjectModel groupsen
dc.subjectOperating conditionen
dc.subjectPerformance requirementsen
dc.subjectTime-domain simulationsen
dc.subjectAdaptive opticsen
dc.titleGMT Integrated FEM and its Role in Systems Engineeringen
dc.typeTrabalho apresentado em eventopt_BR
dc.identifier.doi10.1117/12.3019259
dc.description.affiliationGMTO, 300 N. Lake Avenue, 14th Floor, Pasadena, 91101, CA, United States
dc.description.affiliationInstituto Mauá de Tecnologia, SP, São Caetano do Sul, Brazil
dc.identifier.scopus2-s2.0-85204717060pt_BR
dc.citation.volume13099


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