For some reason I can not reply to Johns post so I have had to make a new discussion - anyway I have attached a possible solutions to his problem -I'm not sure the sign of the solution is what is required. Interestingly I had some odd results with the displacement once I had suppressed the force component so had to reduced the time of the steps
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Comments
-I set the modulus of the component of interest very high and re-run.
-I dump displacements for the "real" and "stiff" cases.
-I take the difference between these cases and create a big *BOUNDARY input file
-I use those displacements to run a dummy Mecway run
-The deflections show the flex displacements without the rigid body.
Pain in the neck!