I kind of hit a roadblock in my endeavor to optimize the cabin of my aircraft with crash and level flight case haha.. It's sort of do or die situation here so to say !! I need help in , how to combine two load steps together for minimum compliance design. Both the load cases are linear static. Both the load steps require separate sets of BCs and load. I tried doing Compliance Index and Weighted Compliance but it's giving me this error
*** ERROR # 1996 *** in the input data:
All entries have zero scale."
which I do not understand . I tried to define index multiple times but I am missing something and making some mistakes but I am not sure what? Any help will be highly appreciated.