Bending stiffness of harmonic gear drive

The study focuses on the problem of reducing the dimensions of machine drives with the increase in the carried loads. The problem can be solved by using new types of gears, the most promising of these being wave gears. When estimating an elastically deformed flexible gear, it is necessary to take into account the reduced inertia moment, the geometric shape of the flexible gear and the toughening effect of its individual sections with respect to the reduced inertia moment. The artiсle presents an experimental study of bending stiffness of flexible gears, as well as a comparative analysis of the existing dependencies. Recommendations are given concerning the influence of geometric parameters on bending stiffness of a flexible gear in a wave gear transmission.

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