Because the process of establishing involute cylindrical gear in ANSYS is complex, CATIA, a 3D drawing software with powerful surface function, is used to construct the three-dimensional solid model of cylindrical gear. Using the parametric modeling method of CATIA, the geometric models of various cylindrical gears can be established accurately and efficiently.
| Name | Parameters | Numerical value | Unit |
| Pressure angle | an | 20 | deg |
| Modulus | m | 4.5 | mm |
| Addendum height coefficient | ha | 1 | / |
| Top clearance coefficient | c | 0.25 | / |
| Actual center distance | aa | 91.5 | mm |
| Number of pinion teeth | z1 | 16 | / |
| Number of teeth of large gear | z2 | 24 | / |
| Pinion displacement coefficient | x1 | 0.8517 | / |
| Displacement coefficient of large gear | x2 | -0.5 | / |
| Tooth width | b | 20 | mm |
| Radius of gear center hole | kr | 15 | mm |
The basic parameters required for drawing involute cylindrical gear are shown in the table, and the three-dimensional solid model of cylindrical gear established in CATIA drawing system is shown in the figure.