Dear all,

I have to define a Boundary Condition (BC) to mimic the axial symmetry in a cylindrical structure. For this, I have cut out the periodic pattern from the structure. To define the BCs (Displacement normal to symmetry face = 0), I have created a cylindrical datum coordinate system whose R and T axes are aligning with the Y and X axes in the global coordinate system. To restrict the motion in the T direction in the local coordinate system, I have put U2=0 in the displacement definition as shown in the attached image. Please let me know if I have done any mistakes while defining the parameters, as I got confused with the directions of U1 and U2.

Thanks a lot in advance!