Analysis of the root stress and the automatic generation of the helical gear's finite element mesh

Combining the automatic generation of 3D finite element mesh with ANSYS sofeware,the loading methods of the helical gear and its root intellectual rounds are analyzed.According to point coordinates on the tooth surface calculated theoretically and using FORTRAN,this paper compiles the programs and builds 3D finite element model of the helical gear.The whole programming algorithm could automatically generate the evenly distributed mesh along tooth length and tooth height,inputting the gear basic parameters and the mesh control parameters.Then,the paper inputs the relative nods and the documents about mesh data into ANSYS,determines the best comparing several loading methods,and analyzes effects of several root rounds on the root flexible stress.