Table 7 Full factor experimental conditions.

From: Coal falling trajectory and strength analysis of drum of shearer based on a bidirectional coupling method

Experimenttype

Experiment number

The cutting depth/b(mm)

Rotating speed/n(rad/s)

Traction speed/v(m/s)

A

1

480

8.5

0.05

2

480

9.5

0.05

3

480

10.5

0.05

B

4

480

8.5

0.07

5

480

9.5

0.07

6

480

10.5

0.07

C

7

480

8.5

0.09

8

480

9.5

0.09

9

480

10.5

0.09

D

10

530

8.5

0.05

11

530

9.5

0.05

12

530

10.5

0.05

E

13

530

8.5

0.07

14

530

9.5

0.07

15

530

10.5

0.07

F

16

530

8.5

0.05

17

530

9.5

0.09

18

530

10.5

0.09

G

19

580

8.5

0.05

20

580

9.5

0.05

21

580

10.5

0.05

H

22

580

8.5

0.07

23

580

9.5

0.07

24

580

10.5

0.07

I

25

580

8.5

0.09

26

580

9.5

0.09

27

580

10.5

0.09