According to the meshing characteristics of the gear engagement output in harmonic drive, this paper establishes the optimum mathematical model of the engagement output meshing parameters, which considers the backlash and the meshing efficiency.

Determination of the meshing parameter of pinion machine tool in cutting spiral bevel gears;

Study of step gear-driven joggle parameter optimization;

Study of gear digress machine joggle parameter optimization;

This paper discuses the phenomenon by lost stability of gearing parameters in considering the gear mesh stiffness, and put forward a criterion of lost stability of gearing parameters.