Table 9 Parameter dimension table.

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

Parameter

M

L

T

Drum diameter/D(mm)

0

1

0

Drum rotating speed/n (r min 1)

0

0

− 1

Traction speed/vq(m·min-1)

0

1

− 1

Density/ρ(kg m−3)

1

− 3

0

Strength/σ(MPa)

1

− 1

− 2

Force/F(N)

1

1

− 2

Moment/T(N·m)

1

2

− 2

Cutting power/P (kw)

1

2

− 3

Vibration acceleration/a(mm s−32)

0

1

−2