To apply the boundary conditions, MPC-based rigid constraints are defined at both ends of the tube and the coil. A pilot node is defined at each end and is attached to CONTA175 elements generated at the end surface of the tube and the end nodes of the coils.

Figure 51.7: MPC-Based Rigid Constraints (a) and Boundary Conditions at Pilot Nodes (b)

The pilot node at one end is fixed in all directions; the pilot node at the other end is rotated about the Y axis by 1.2 radians.