PHOTOELASTIC RESEARCH OF THE HERTZIAN STRESS IN HCR-GEARS
This paper deals with the analysis of the Hertzian stress in high transverse contact ratio (HCR) gearing. Based on the realistic load distribution on tooth pairs in mesh and using our own method, the Hertzian stresses along the path of contact have been calculated. Photoelastic research of Hertzian stresses in HCR gears were carried out. The model was to simulate the real total load distribution on teeth pairs. The experimental results showed significant concordance with the theoretical calculations. A comparison of experimental results with the values obtained by using the DIN- Standard HCR-gears calculation shows that DIN-Standard procedure gives rather inaccurate results, although they are "on the safe side".