| 设计变量/mm | x1 | x2 | x3 | x4 | x5 | x6 | x7 |
| 初始值 | 3 | 3 | 3 | 3 | 3 | 5 | 3 |
| 上限 | 2 | 1.5 | 1 | 1 | 1 | 2 | 1 |
| 下限 | 3 | 3 | 3 | 3 | 3 | 5 | 3 |