There has been some discussion on the design sensitivity optimization earlier. The FEMAP tool seems to work very well for certain purposes. However I guess multiobjective optimization is not possible with Nastran?? I tried to check from the Nastran 9 guide but the reading experience Siemens is providing is not the best. So just to make sure: Is multiobjective optimization possible with Nastran?
According FEMAP developers I can tell you that they have plans for the near future to improve & enhance the current capabilities of the optimization module integrated in FEMAP based in NX NASTRAN OPTIMIZATION (SOL200).