Lifting analysis is a specific problem to solve, and occurs many times in Oil&Gas projects.
In my work I saw many times a wrong way to solve it, because a lot of software haven’t good tools for solving problems like this. It’s really hard to solve that type of analysis in Inventor or SolidWorks, even with Nastran add-ons. Thats why I prefer Ansys for problems like that.
I have experience in lifting calculations of complex construction and designing a simple parts like padeye, lugs etc. I know also how to choose lifting set (slings, shackles etc.) according to DNV.