Table 7 Recommended frontier solutions.

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

Number

A

B

C

Y1

Y2

Applicability

1

27.7

68.2

82.1

18.92

2.83

1

2

26.8

68.3

82.9

18.52

2.91

1

3

28.1

66.9

82.3

18.99

2.82

1

4

25.5

70.3

81.4

18.82

2.97

1

5

28

67.8

82.4

18.89

2.86

1

6

26.9

67.7

83.0

18.54

2.87

1