Ansys "Pin" constraint
Ansys "Pin" constraint
(OP)
I'm not an avid user of Ansys APDL.
How can I apply this constraint on an open ended thin walled cylinder (modeled as a volume with solid elements)?
Note: the axis of my cylinder is in the z direction
-One end fixed in all 6 DOF's
- Other end free to translate in z direction and free radial expansion only (all other DOF fixed)
I want to do this in cylindrical co-ordinate system. How can I do this?
Thanks
MikeG7
How can I apply this constraint on an open ended thin walled cylinder (modeled as a volume with solid elements)?
Note: the axis of my cylinder is in the z direction
-One end fixed in all 6 DOF's
- Other end free to translate in z direction and free radial expansion only (all other DOF fixed)
I want to do this in cylindrical co-ordinate system. How can I do this?
Thanks
MikeG7





RE: Ansys "Pin" constraint
Someone might have to correct me, but I think you can do what you'd like to do (a pin joint at the end of a tube) with constraint equations.
I believe the proper technique would be to create a node in the center of the tube to which you can apply your pin joint constraints. You'd then relate the displacements of that node to the tube with constraint equations.
http://lnf.umich.edu/nnin-at-michigan/wp-content/u...
RE: Ansys "Pin" constraint
RE: Ansys "Pin" constraint
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RE: Ansys "Pin" constraint
I agree that for what you're after, the way you've done it does the trick.
If you did want a ball-and-socket joint behavior, though, constraint equations would get you there. :)
RE: Ansys "Pin" constraint