>>5794297"desigining" a gearbox in inventor is easy as FUCK
calculating all that shit is the problem desu
I think that Airbus uses ABAQUS and it's pretty pro
we had ansys because it's free for unis and from what I know you have to pay for Abaqus even as an uni
also this is pretty cool (at least one of my friends used it and said it was pretty cool)
https://www.simscale.com/