FE model evolution of the main support structure interfaces to the ELT Nasmyth Platform from PDR to FDR

Vincenzo Cianniello; Vincenzo De Caprio; Christian Eredia; Enrico Cascone; Domenico D'Auria; Gabriele Umbriaco; Edoardo Alberto Maria Redaelli; Marco Riva; Paolo Ciliegi

doi:10.1117/12.3019814

18 July 2024 FE model evolution of the main support structure interfaces to the ELT Nasmyth Platform from PDR to FDR

Vincenzo Cianniello, Vincenzo De Caprio, Christian Eredia, Enrico Cascone, Domenico D'Auria, Gabriele Umbriaco, Edoardo Alberto Maria Redaelli, Marco Riva, Paolo Ciliegi

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130965Z (2024) https://doi.org/10.1117/12.3019814
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

This paper offers an in-depth study on the structural analyses, performed in INAF - Observatory of Naples, regarding the Interface Joints installed on the ESO Nasmyth Platform of the MORFEO Main Support Structure (MSS). MORFEO is a first light instrument for the ELT (Extremely Large Telescope) that started, since February 2023, its final design phase. This FE model are validated through FEM Analysis approach, utilizing CAD (Autodesk Inventor) and CAE (Ansys Workbench) software. In order to provide an effective survival validation test, it has been simulated the complete earthquake load condition of the MORFEO MSS with its Interface NP Joints mounted below it and its payloads installed on it. All the useful analyses have been developed in detail. Also the operational conditions of the instrument have been checked, simulating the wind effects and the NP induced distortions. In order to have a lighter model for the MORFEO MSS and shorter computational times, simpler FE models than the 3D CAD have been developed. This discretization is a standard approach in the FEA technique and in this paper it is demonstrated that this method still provides accurate results at global level.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Vincenzo Cianniello, Vincenzo De Caprio, Christian Eredia, Enrico Cascone, Domenico D'Auria, Gabriele Umbriaco, Edoardo Alberto Maria Redaelli, Marco Riva, and Paolo Ciliegi "FE model evolution of the main support structure interfaces to the ELT Nasmyth Platform from PDR to FDR", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130965Z (18 July 2024); https://doi.org/10.1117/12.3019814

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available