Load share and finite element stress analysis for double circular-arc helical gears
The authors analyze the tooth surface contact and stresses for double circular-arc helical gear drives. The proposed approach is based on application of the computerized simulation of meshing and contact of loaded gear drives, and on the finite element method. Load share between the neighboring pairs of teeth is based on the analysis of position errors caused by surface mismatch and elastic deformation of teeth. The main result: the authors have investigated the conditions of load share under a load and determined the real contact ratio for aligned and misaligned gear drives. Elastic deformation of teeth and the stress analysis of the double circular-arc helical gears are accomplished by using the finite element method. Finite element models for the pinion and the gear are constructed, respectively. Contact pressure is spread over an elliptical area. The stress analysis for aligned and misaligned gear drives has been performed. Finally, the numerical results have been compared with those obtained by other approaches.
scientific article; zbMATH DE number 774787