a******n
发帖数: 98 | 1 I built a structural model for an air vehicle. As it contains tension-only
element, nonlinear analysis need to be applied. I don't know how to
constrain six degrees of freedom in order to remove rigid body motion.
There are some symmetric conditions existing, but I still can not constrain
six degrees of freedom. Someone suggested the "inertial relif" function of
Nastran. Even in Nastran, it sounds like that "inertial relief" is not
working for nonlinear model. (I am not familar with Nastran). Is | a******n
发帖数: 98 | 2 Already solved my problem: there is a command of "inertia relief" in both of
ANSYS and Nastran. |
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