Table 4 Prediction accuracy of the USMMT on ultimate torques of various multi-cell BGCSWs

1-cell (n = 1, i = 1)

S-1C

1

685.61

670.33

0.978

2-cell (n = 1, i = 1)

S-2C

1

689.47

670.33

0.972

3-cell (n = 2, i = 1, 2)

S-3C-1

1, 1/9

698.87

676.44

0.968

S-3C-2

1, 2/9

719.14

701.24

0.975

S-3C

1, 1/3

755.62

743.28

0.984

S-3C-4

1, 4/9

797.20

790.75

0.992

S-3C-5

1, 5/9

835.59

823.09

0.985

S-3C-6

1, 2/3

847.74

853.59

1.007

S-3C-7

1, 7/9

875.82

884.12

1.009

S-3C-8

1, 8/9

831.26

914.65

1.100

4-cell (n = 2, i = 1, 2)

S-4C

1, 1/2

823.73

807.67

0.981

5-cell (n = 3, i = 1, 2, 3)

S-5C

1, 3/5, 1/5

882.33

859.23

0.974

S-5C-1

1, 5/9, 1/9

970.09

829.31

0.855

S-5C-2

1, 2/3, 1/3

916.32

925.27

1.010

S-5C-3

1, 7/9, 4/9

851.27

1003.57

1.179

S-5C-4

1, 8/9, 1/2

967.41

1051.87

1.087

6-cell (n = 3, i = 1, 2, 3)

S-6C

1, 2/3, 1/3

918.77

925.27

1.007

7-cell (n = 4, i = 1, 2, 3, 4)

S-7C

1, 5/7, 3/7, 1/7

973.81

992.77

1.019

S-7C-1

1, 8/9, 5/9, 2/9

1008.36

1097.26

1.088

S-7C-2

1, 8/9, 2/3, 1/3

1023.58

1168.13

1.141

8-cell (n = 4, i = 1, 2, 3, 4)

S-8C

1, 3/4, 1/2, 1/4

1014.72

1052.65

1.037

9-cell (n = 5, i = 1, 2, 3, 4, 5)

S-9C

1, 7/9, 5/9, 3/9, 1/9

1036.22

1114.24

1.075

S-9C-1

1, 8/9, 6/9, 4/9, 2/9

1062.17

1248.33

1.175

10-cell (n = 5, i = 1, 2, 3, 4, 5)

S-10C

1, 4/5, 3/5, 2/5, 1/5

1069.91

1182.09

1.105

Mean value

1.029

0.076