[MBDyn-users] Structural internal couple

doug at baldwintechnology.com doug at baldwintechnology.com
Thu Oct 8 06:58:06 CEST 2015


Hi All,
I find that internal couples about the X and Y axes are possible, but the
Z axis is not. Further, the specification of the rotational vector seems
incorrect to me. Attached is a simple model of a Clamp and a Body at the
origin, with a Structural Internal Couple joining these two nodes. The
three tests for X, Y, and Z couples are annotated, along with the observed
results. Is this correct behavior? Can a couple about the Z-axis also be
specified?
Thank you,
-Doug
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