Question: I have a working implementation of flexbodies in Simmechanics. For this I used a classic, free-free state-space model, exported from Ansys. To get the results to closely match FEM output however, I require about 200 modes, which takes a long time to run. In trying to improve this, I have been looking at different techniques to create state-space systems, e.g. the free Craig-Bampton reduction approach. Does anyone have experience with this, or other advice relevant to improve calculation times and/or accuracy?

Hi there. I am trying to construct a composite beam by copying the given beam model, and then connecting the midpoint. I cannot figure out how to do this. Do you maybe have examples of where you have connected several flexible bodies?

When I try to model a beam along certain directions some plot errors occur. For example when I try to plot a beam which "Direction of the beam element" is [1 1 0], Matlab answers: MATLAB error message: Error using ==> axis>LocSetLimits at 234
Vector must have 4, 6, or 8 elements.