Could you also tell me, if there is a way to cut the solid surface near the diagarm and create another solid like the picture below. Because if thats possible I have to make that solid before the one you suggested now. Sorry, if I am asking too many questions. I am doing a project in my masters and I am a bit new to ansys and your suggestions are really helping me a lot.

I have to make it such that it almost looks like this at the diaphragm part, but the person made these in Abaqus not in ansys