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Jos Boeije

Jos Boeije Engineering

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Freelance Engineer, specialized in mechanical analysis through both simulation and experimental work.


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24 Feb 2012 Modeling Flexible Bodies in SimMechanics Technical paper and examples on modeling flexibility in SimMechanics. Author: Dallas Kennedy

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?

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