Hi Simulation Enthusiasts,

I'm working in Simpack2023x to model a drivetrain that includes both rigid and flexible bodies (though no nonlinear elements in this case). I'm looking to extract the system matrices—mass, stiffness, and damping—from the linearized model.

I’m aware that Simpack can directly provide the steady-state matrices, and usually the structural properties can be inferred from these. I was also considering manually constructing the mass matrix and then using its inverse to back out the others. However, even with flexible states excluded, the model has quite a few degrees of freedom—so I’m concerned about the risk of making mistakes when doing it manually.

Has anyone tackled something similar and could share insights or best practices?

Thanks in advance!