caa a22 4500 445830352 CHVBK 20180317145313.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10686-011-9212-y doi (NATIONALLICENCE)springer-10.1007/s10686-011-9212-y A simulation model for a telescope earthquake analysis: the VST primary mirror safety system [Elektronische Daten] [Francesco Perrotta, Pietro Schipani] The VST (VLT Survey Telescope) is a wide field survey telescope going to be commissioned at Cerro Paranal (Chile). Due to the geological nature of the area, telescopes in Chile can be submitted to unpredictable and sometimes severe earthquake conditions. The commonly used response spectrum analysis has proven to be not suitable to evaluate the behavior of the VST telescope during an earthquake, due to the high number of devices with a nonlinear force-displacement characteristic in the primary mirror cell. Therefore, a nonlinear transient analysis based on a mixed Finite Element-Simulink approach has been carried out. A linear Finite Element (FE) model of the telescope has been developed and exported to Simulink, using a space state model representation. Then all nonlinear devices have been properly modeled and artificial accelerograms based on seismic history of the site have been applied. The paper focuses on the Simulink model, while giving an overview of the whole procedure. Springer Science+Business Media B.V., 2011 Telescope nationallicence Finite elements nationallicence Earthquake analysis nationallicence Matlab nationallicence Perrotta Francesco INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy aut Schipani Pietro INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy aut Experimental Astronomy Springer Netherlands 29/3(2011-04-01), 189-206 0922-6435 29:3<189 2011 29 10686 https://doi.org/10.1007/s10686-011-9212-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10686-011-9212-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Perrotta Francesco INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy aut NATIONALLICENCE 700 1- Schipani Pietro INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy aut NATIONALLICENCE 773 0- Experimental Astronomy Springer Netherlands 29/3(2011-04-01), 189-206 0922-6435 29:3<189 2011 29 10686 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer