About the Model
The initial model is illustrated in the following figure. It mimics a bent
pipe with different-sized openings at each side. Two distributed loads in negative
y-direction and z-direction, respectively, are applied on the right bent opening and the
bottom is clamped.

The design nodes are located in the blue colored area at the tapering. The
pipe does not lose its iconic form and, thus, the design nodes stays rotational symmetric.
This can be achieved by applying the SURF_TURN manufacturing constraint.