structure node fix command
Syntax
- structure node fix keyword <range>
Primary keywords:
rotation rotation-x rotation-y rotation-z system-local velocity velocity-x velocity-y velocity-z
Fix conditions for all nodes in the range, thereby preventing these values from changing. If any translational/rotational velocity component is fixed, then all three components of the translational/rotational velocity should also be specified in the local coordinate system via the
structure node initialize
command. If a fixed displacement is required, the appropriate velocities should be initialized to zero. Degrees-of-freedom with a rigid attachment condition cannot be fixed; the rigid condition overrides the fix condition.- rotation
rotational velocity in all three degrees-of-freedom (node local system)
- rotation-x
rotational velocity about x-axis (node-local system)
- rotation-y
rotational velocity about y-axis (node-local system)
- rotation-z
rotational velocity about z-axis (node-local system)
- system-local
inhibits automatic updating of the node-local system based on the elements that use the node. The default behavior is free.
- velocity
translational velocity in all three degrees-of-freedom (node local system)
- velocity-x
translational velocity in x-direction (node-local system)
- velocity-y
translational velocity in y-direction (node-local system)
- velocity-z
translational velocity in z-direction (node-local system)
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