Based on the provided parameters of the spur gear pair and operating conditions, the maximum modification amount of these spur gears was recalculated using the ISO gear modification amount calculation method and the spur gear modification amount calculation method based on the stiffness of the elastohydrodynamic friction pair in this article. The results were compared with the actual modification amount of these spur gears, as shown in the table.
| Inspection examples | Δmax (ISO)/µm | Δmax (EHL)/µm | Δmax/µm | ε1/% | ε1/% |
| 1 | 1.7 | 3.8 | 4.2 | 59.5 | 9.5 |
| 2 | 13.6 | 35.2 | 40 | 66 | 12.0 |
| 3 | 12.3 | 38.5 | 49.1 | 75 | 21.6 |
| 4 | 21 | 40 | 44 | 52 | 9.1 |
| 5 | 70 | 111 | 120 | 42 | 7.5 |
| 6 | 88 | 109 | 120 | 27 | 9 |
The modification amount of spur gears shown in the table has been verified through practical inspection or experimental verification, and the modification effect is good.
In the table, Δ Max (ISO) is the modification amount of the ISO calculation method; Δ Max (EHL) is the modification amount based on the stiffness modification method of the elastohydrodynamic friction pair; Δ Max is the actual modification amount of spur gears; ε 1 is the relative error between the modification amount calculated by ISO and the actual modification amount; ε 2 is the relative error between the modification amount based on the stiffness modification method of the elastohydrodynamic friction pair and the actual modification amount.
From the table, it can be seen that there is a significant difference between the maximum modification amount calculated by ISO and the actual design value, which may be due to the fact that the modification amount of these actual spur gears is determined through various factors and methods such as comprehensive experiments and optimization; At the same time, it can be seen that the maximum modification amount based on the stiffness method of the elastohydrodynamic friction pair in this article is closer to the actual engineering value.
The simulation results in the comprehensive table indicate that it is necessary to include the influence of elastohydrodynamic lubrication when determining the modification amount of spur gears, and the effect will be better.