Table 3 Experimental plan and results from the structural optimization experiment.
From: Mechanical high-speed precision maize metering device based on seed pile stratification
No. | Factors | Performance indexes | ||||
|---|---|---|---|---|---|---|
Rotation speed (rpm) | Number of mesh holes | Mesh hole diameter (mm) | Qualified rate (%) | Multiple rate (%) | Miss rate (%) | |
1 | −1 | −1 | 0 | 82.333 | 11.902 | 5.765 |
2 | 1 | −1 | 0 | 80.645 | 7.097 | 12.258 |
3 | −1 | 1 | 0 | 81.102 | 12.598 | 6.300 |
4 | 1 | 1 | 0 | 83.585 | 8.537 | 7.878 |
5 | −1 | 0 | −1 | 83.688 | 10.594 | 5.718 |
6 | 1 | 0 | −1 | 85.629 | 4.192 | 10.179 |
7 | −1 | 0 | 1 | 84.621 | 9.328 | 6.051 |
8 | 1 | 0 | 1 | 83.967 | 7.215 | 8.818 |
9 | 0 | −1 | −1 | 82.308 | 8.054 | 9.638 |
10 | 0 | 1 | −1 | 81.160 | 10.960 | 7.880 |
11 | 0 | −1 | 1 | 79.190 | 10.738 | 10.072 |
12 | 0 | 1 | 1 | 80.556 | 11.111 | 8.333 |
13 | 0 | 0 | 0 | 88.540 | 7.170 | 4.29 |
14 | 0 | 0 | 0 | 88.326 | 7.261 | 4.413 |
15 | 0 | 0 | 0 | 89.652 | 6.859 | 3.489 |
16 | 0 | 0 | 0 | 88.965 | 7.349 | 3.686 |
17 | 0 | 0 | 0 | 89.627 | 6.881 | 3.492 |
