The meshing stiffness of face gear transmission is the main parameter of dynamic analysis and optimization design for face gear transmission.Based on the analysis of meshing stiffness of cylindrical gear transmission

the theoretical calculating method of meshing stiffness of face gear transmission is studied.The cylindrical gear and face gear in face gear transmission is simplified as elastic cantilever with variable cross section

then the formulas of meshing stiffness of face gear transmission are derived.The three-dimensional model of face gear transmission is established

and the finite element analysis is carried out.Through analyzing the two results of theoretical calculating method and finite element analysis

the correctness of the theoretical calculating is verified

the accurately calculating method of face gear meshing stiffness is obtained.