I have been trying to run a simulation study on a structure for a project; the structure will be used to support a pan mold from a center pivot column but need to have very minimal deflection or sag. I need to verify material sizes to ensure my design meets our criteria; however I am having issues when trying to run the study for this structure. It is a combination of structural members (i-beams and tubing) as well as standard extrustions (mounting plate). The structure is to be bolted to a bearing that will be attached to the center pivot column and I have been trying to apply a load of 700lbs to the flat portion of the model but am having issues with it not terminating or blowing up? Any help?