Evaluation of Dynamic Factors for Spur and Helical Gears

This paper deals with the development of a generalized dynamic factor for spur and helical gears operating away from system resonances. The experimental results of the tests reported in the previous paper [1] are used in conjunction with mathematical simulation of the gear system and geometrical analysis of the tooth meshing action to develop a semi-empirical formula for dynamic tooth load. The formula takes into consideration the gear geometry and manufacturing parameters as well as the dynamic characteristics of the system.