Table 10 Similarity coefficient. Significant values are in italics.

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

Similarity coefficient

Numerical value

CL

K1 = 0.5

Cn

K2 = 1.2

Cρ

K3 = 1

CD

K1

Cv

K1K2

Cσ

K12K22K3

CF

K14K22K3

CT

K15K22K3

CP

K15K23K3

Ca

K1K22

Cf

K12K22K3

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