Hello,

I am currently trying to export a Simpack Rail vehicle model as a 2.0 FMU in order to simulate it in Python. The FMU export from Simpack completes without any issues. However, when I simulate the exported FMU in Python using PyFMI and compare the results with those from the original Simpack model, the results do not match.

Specifically, I am comparing certain displacements that occur while driving on a track. At the beginning of the simulation, the signals match perfectly. However, as the amplitudes increase, deviations in both amplitude and phase appear. Once the amplitudes decrease, the signals start to align almost perfectly again.

Does anyone know a possible solution to this problem?

Thank you in advance,
Max