Of course. As you see the picture, I defined one force and fix support on the shell part (each side). I put one bonsws connection between points and inner face of the cylinder. I have done optimization. My inputs are location of one of the points (x, y, z). The output is maximum stress. According to the rules of Ansys, it will not be solved when the inputs are inappropriate. As you see in the optimization section, I change the location of the point (it does not have a connection with the inner face of the shell). However, it was solved. When I was designing a cylinder as a solid part, it could not be solved. What should I do?