Abstract
The tooth contact analysis (TCA) technique and finite element method (FEM) have been applied to gear contact analysis and stress analysis. A mathematical model for helical gears with pinion circular arc teeth and gear involute teeth is assumed to be given by Litvin and Tsay. The geometry of the gears are described by the parameters of manufacturing. Simulation of the conditions of gear meshing, including the axes misalignment and center distance variation are performed. The locations of bearing contact and contact pattern of mating tooth surfaces are determined by the TCA. Results of the TCA provide the location and direction of applied loadings for the computer-aided FEM stress analysis. By applying the given mathematical model and the TCA techniques, a computer-aided stress analysis model for a new pair of gearing has been proposed. An automatic meshes generation (AMG) program has been developed for the FEM stress analysis. A three-dimensional stress analysis for this type of gearing has also been investigated and expressed by Von Mises stress contour distributions.
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