Aiming at the problems in the process of robust optimization design of involute gear

such as determining the dynamic load coefficient and multi-parameter nonlinear coupling

a method of dynamic load coefficient modified calculation is proposed.Through sovling the relative gain matrix between design parameter

the coupling relationship between the design parameter is reflected.Combining the optimization method of robust optimization design method

the feedback optimization design method of involute gear is put forward.This method not only improves the robustness of traditional optimization algorithm

but also reduces the difficulty to determine optimization parameters in the process of robust optimization design.By comparing the instance

gear parts

which designed by feedback robust optimization design method

can still maintain good quality of tooth contact and dynamic performance in the time variant situation.A new way of involute gear optimization design is provided.