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Table 5

Test table under the orthogonal design by inner and outer array.

Outer array E (mm) 2.20–2.25 2.20–2.25 2.25–2.30 2.25–2.30
F Stable Loose Stable Loose
Inner array G (psi) −1 1 1 −1
Number (j) 1 2 3 4
Number (i) A (mm) B (psi) C D Y1 Y2 Y3 Y4

1 3.359 15 Forward 1 2.66 2.56 2.57 2.59
2 3.359 18 Fixed 2 2.59 2.56 2.59 2.56
3 3.359 20 Backward 3 2.56 2.63 2.6 2.66
4 3.459 15 Fixed 3 2.66 2.54 2.59 2.65
5 3.459 18 Backward 1 2.65 2.57 2.56 2.69
6 3.459 20 Forward 2 2.65 2.57 2.66 2.57
7 3.559 15 Backward 2 2.56 2.59 2.65 2.67
8 3.559 18 Forward 3 2.56 2.6 2.58 2.66
9 3.559 20 Fixed 1 2.63 2.57 2.55 2.59

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