Wind Evaluation Breadboard: mechanical design and analysis, control architecture, dynamic model, and performance simulation

Reyes García-Talavera, Marcos; Viera, Teodora; Núñez, Miguel; Zuluaga, Pablo; Ronquillo, Bernardo; Ronquillo, Mariano; Brunetto, Enzo; Quattri, Marco; Castro, Javier; Hernández, Elvio
Bibliographical reference

Ground-based and Airborne Telescopes II. Edited by Stepp, Larry M.; Gilmozzi, Roberto. Proceedings of the SPIE, Volume 7012, pp. 70120X-70120X-12 (2008).

Advertised on:
8
2008
Number of authors
10
IAC number of authors
5
Citations
0
Refereed citations
0
Description
The Wind Evaluation Breadboard (WEB) for the European Extremely Large Telescope (ELT) is a primary mirror and telescope simulator formed by seven segments simulators, including position sensors, electromechanical support systems and support structures. The purpose of the WEB is to evaluate the performance of the control of wind buffeting disturbance on ELT segmented mirrors using an electro-mechanical set-up which simulates the real operational constrains applied to large segmented mirrors. The instrument has been designed and developed by IAC, ALTRAN, JUPASA and ESO, with FOGALE responsible of the Edge Sensors, and TNO of the Position Actuators. This paper describes the mechanical design and analysis, the control architecture, the dynamic model generated based on the Finite Element Model and the close loop performance achieved in simulations. A comparison in control performance between segments modal control and actuators local control is also presented.