Mathematical model of a wave gear with the external deformation waves generator

Abstract

The paper considers a spatial mathematical model of a wave gear with the annular generator of the external deformation waves. Calculation method was based on determination of the elastic interaction between flexible wheel, rigid wheel and wave generator. Numerical studies confirmed the adequacy of the proposed mathematical model. Theoretical studies of the influence of preload in the gearing and initial clearance between the flexible wheel and the deforming washers on the forces acting on the wave generator bearings were conducted. It is shown that a decrease in the specified clearance leads to an increase in loads on the bearings. By calculation, torsional rigidity characteristics of the wave gear with an external deformation generator were obtained for various interference values in the gearing and the clearance.