Reply To: Convergence difficulty when shell edges come into contact with solid body

[peteroznewman]

It's good that your model is using Displacement to move the bulb down. has some good suggestions. Here are some other things that you can try.
It looks like the solid bulb is a rigid body. Try using smaller elements on the solid bulb surface.
You don't show the tip of the bulb. Is there a radius on that? There should be.
Finally, try using a different Detection method: Nodal-Normal to Target.