Ethernet-based servo-hydraulic real-time controller and DAQ at ELSA for large scale experiments

This paper presents an overview of the developments performed at the European Laboratory for Structural Assessment (ELSA) of the Joint Research Centre of European Commission concerning the new generation of servo-hydraulic real-time digital controller/acquisition system adopted in large scale experiments. The hardware architecture is based on EtherCAT® modules that guarantee a versatile and modular system easily adaptable to changing requirements (a typical situation experienced at ELSA with custom adapted non-standardized large scale structural experiments). Other fundamental features of this system are that all the analogue signals are digitalized in proximity of the transducers reducing noise to signal ratio (great advantage for Pseudo-dynamic tests but in general for all experimentation) and all the different slave controllers communicate at each time sampling through a deterministic robust digital bus. In addition to the increasing computer performances, the developed simplified software architecture does offer a substantial improvement of control quality in terms of speed, safety and accuracy compared with conventional/commercial systems.

PERONI Marco;  PEGON Pierre;  MOLINA RUIZ Francisco Javier;  BUCHET Philippe; 

2022-11-02

TAYLOR & FRANCIS LTD

JRC126798

1363-2469 (online),   

https://www.tandfonline.com/doi/full/10.1080/13632469.2021.1979134,    https://publications.jrc.ec.europa.eu/repository/handle/JRC126798,   

10.1080/13632469.2021.1979134 (online),