this paper proposes a method of Multi - object Optimal Design to balance and meet the various performance requirements for Harmonic Drive in different systems

such as requirement for harmonic drive precision

load capacity or Flexspline fatigue strength in practical engineering. The method sets up multi-object optimal model that takes Meshing backlash，depth in engaging and flexspine fatigue stress as the objective function

at the same time

it changes the value scope of the relative requirements into weight of the linear weighting method in order to make sure that the harmonic drive can not only obtain the optimal transmission performance but also get the better reliability.