Hello,
You can create BCs in a cylindrical coordinate system in LS-PrePost by using the NODE option with *BOUNDARY_SPC_NODE. See the following example and video:
http://ftp.lstc.com/anonymous/outgoing/support/FAQ_kw/bc_in_cylindrical_coord_system.tar
With the NODE option, each node has its own local coordinate system to apply constraints in the radial and tangential direction.
These coordinate systems are created automatically by LSPP:
In the image above, x=radial, y=tangential, and z=axial.
I think cylindrical coordinate systems are in the plan for WB LS-DYNA, but I am not sure when it will happen.
Reno.
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