I ran a cyclic symmetry model with 14 blades. There are 3 harmonic indexes. I asked for 20 modes. Thus for each harmonic index, I have 20 modes. I don`t have mechanical engineering background. I should draw the diagram (Freq. vs. ND). I don`t know from these different mode shapes, which one is related to each ND. Would you please let me know how I can find first blade bending modes? Thank you.