ABSTRACT
Whereas there is a large body of literature on Tooth modification and TE, only a small number of studies have been performed considering threedimensional (3D) surface modifications of the tooth. The main objective of this paper is developing a parametric finite element modeling method for spur/helical gears, and providing a tool to investigate the effect of tooth modifications on transmission error and load distribution. First of all, an approach to generate the finite element model of spur/helical gear including modifications is presented, information about the nodes and elements of the gear is written into a input file via a C code. Then, the 3D FE model of the gear is constructed directly in ABAQUS using the input file. In order to investigate the relationship between the shape of gear tooth modification and the Loaded Static Transmission Errors (LSTE), several models with different tooth modification length and amount have been compared. According to the analytical results, the effects of tooth modification on the transmission error have been discussed respectively.
