Table 2 Results of the PB test.

From: Dynamic sealing simulation and performance optimization of conical rubber core in rotary blowout preventer

Number

A

B

C

D

E

F

Y1(MPa)

Y2(MPa)

1

1

-1

1

-1

-1

-1

35.60

8.15

2

1

1

-1

1

-1

-1

31.38

6.53

3

-1

1

1

-1

1

-1

17.40

3.30

4

1

-1

1

1

-1

1

35.12

8.39

5

1

1

-1

1

1

-1

23.64

5.20

6

1

1

1

-1

1

1

19.34

6.11

7

-1

1

1

1

-1

1

24.84

5.91

8

-1

-1

1

1

1

-1

22.12

4.73

9

-1

-1

-1

1

1

1

22.46

4.59

10

1

-1

-1

-1

1

1

27.34

6.95

11

-1

1

-1

-1

-1

1

24.72

3.93

12

-1

-1

-1

-1

-1

-1

29.04

5.82

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