Table 3 Scheme and results of Plackett–Burman experimental.
No. | Test factors | Stacking angle (°) | |||||
|---|---|---|---|---|---|---|---|
N1 | N2 | N3 | N4 | N5 | N6 | ||
1 | 1 | 1 | − 1 | 1 | 1 | 1 | 36.83 |
2 | − 1 | 1 | 1 | − 1 | 1 | 1 | 49.92 |
3 | 1 | 1 | 1 | 1 | − 1 | − 1 | 41.00 |
4 | − 1 | − 1 | − 1 | 1 | 1 | 1 | 29.36 |
5 | − 1 | 1 | 1 | − 1 | 1 | − 1 | 46.20 |
6 | − 1 | 1 | − 1 | 1 | − 1 | − 1 | 28.74 |
7 | 1 | − 1 | − 1 | − 1 | 1 | − 1 | 24.57 |
8 | 1 | 1 | − 1 | − 1 | − 1 | 1 | 30.46 |
9 | 1 | − 1 | 1 | − 1 | − 1 | 1 | 43.27 |
10 | − 1 | − 1 | 1 | 1 | − 1 | 1 | 39.43 |
11 | 1 | − 1 | 1 | 1 | 1 | − 1 | 43.73 |
12 | − 1 | − 1 | − 1 | − 1 | − 1 | − 1 | 25.22 |