9–11 Sept 2025
ESA/ESTEC
Europe/Amsterdam timezone

Advancements in thermal co-simulation using FMI (EISTAM follow-on)

9 Sept 2025, 14:30
30m
Einstein

Einstein

thermal analysis and software tools Thermal Analysis

Speakers

Antoine CaugantMr Matthieu Rodriguez (Airbus Defence and Space)

Description

The "Efficient Integration of Space Thermal Analysis Models" (EISTAM) R&D project investigated the feasibility of using FMI co-simulation to enhance the exchange of thermal models. Although promising results were obtained, several aspects required further refinement. The EISTAM CCN2 follow-on project successfully addressed these issues.

Firstly, EISTAM use-cases revealed that numerical convergence could be a significant hurdle for deploying FMI co-simulation. A comprehensive background study identified state-of-the-art stabilization solutions, some of which were successfully implemented in a test case.

Secondly, the co-simulation between Systema and other software, such as ESATAN, was successfully demonstrated.

Finally, an additional case was set up to validate the scalability of the FMI co-simulation approach. A detailed EOS satellite model was split into two FMUs to perform co-simulation with mixed timesteps. This approach significantly reduced simulation duration while demonstrating the robustness of the process.

This presentation summarizes the achievements, challenges, and lessons learned from this R&D follow-on, as well as discusses potential avenues for future developments.

Authors

Antoine Caugant Mr Matthieu Rodriguez (Airbus Defence and Space)

Co-author

Mr James Etchells (ESA)

Presentation materials